diff --git a/.gitlab-ci-modules.yml b/.gitlab-ci-modules.yml
index 954e03f119..c80a5b3b52 100644
--- a/.gitlab-ci-modules.yml
+++ b/.gitlab-ci-modules.yml
@@ -2113,6 +2113,23 @@ test-modules-project-postgresql:
     PACKAGE: modules/project
     TAG_PATTERN: '/^project-.*/'
 
+check-doc-modules-project_disbursement:
+  extends: .check-doc
+  variables:
+    PACKAGE: modules/project_disbursement
+
+test-modules-project_disbursement-sqlite:
+  extends: .test-sqlite
+  variables:
+    PACKAGE: modules/project_disbursement
+    TAG_PATTERN: '/^project_disbursement-.*/'
+
+test-modules-project_disbursement-postgresql:
+  extends: .test-postgresql
+  variables:
+    PACKAGE: modules/project_disbursement
+    TAG_PATTERN: '/^project_disbursement-.*/'
+
 check-doc-modules-project_invoice:
   extends: .check-doc
   variables:
diff --git a/doc/project.rst b/doc/project.rst
index 90c9a1eaf1..7e041e63c6 100644
--- a/doc/project.rst
+++ b/doc/project.rst
@@ -8,6 +8,9 @@ Project
 :doc:`Project <project:index>`
    Fundamentals for project management.
 
+:doc:`Disbursement <project_disbursement:index>`
+   Pay and invoice disbursements for projects.
+
 :doc:`Invoice <project_invoice:index>`
    Invoice projects.
 
diff --git a/modules/project_disbursement/CHANGELOG b/modules/project_disbursement/CHANGELOG
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/modules/project_disbursement/COPYRIGHT b/modules/project_disbursement/COPYRIGHT
new file mode 100644
index 0000000000..d4b1d8a61e
--- /dev/null
+++ b/modules/project_disbursement/COPYRIGHT
@@ -0,0 +1,15 @@
+Copyright (C) 2026 Cédric Krier <cedric.krier@b2ck.com>
+Copyright (C) 2026 B2CK SRL
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
diff --git a/modules/project_disbursement/LICENSE b/modules/project_disbursement/LICENSE
new file mode 100644
index 0000000000..94a9ed024d
--- /dev/null
+++ b/modules/project_disbursement/LICENSE
@@ -0,0 +1,674 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
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+otherwise be available to you under applicable patent law.
+
+  12. No Surrender of Others' Freedom.
+
+  If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License.  If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you may
+not convey it at all.  For example, if you agree to terms that obligate you
+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
+
+  13. Use with the GNU Affero General Public License.
+
+  Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU Affero General Public License into a single
+combined work, and to convey the resulting work.  The terms of this
+License will continue to apply to the part which is the covered work,
+but the special requirements of the GNU Affero General Public License,
+section 13, concerning interaction through a network will apply to the
+combination as such.
+
+  14. Revised Versions of this License.
+
+  The Free Software Foundation may publish revised and/or new versions of
+the GNU General Public License from time to time.  Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<http://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.
diff --git a/modules/project_disbursement/README.rst b/modules/project_disbursement/README.rst
new file mode 120000
index 0000000000..176d9c2695
--- /dev/null
+++ b/modules/project_disbursement/README.rst
@@ -0,0 +1 @@
+doc/index.rst
\ No newline at end of file
diff --git a/modules/project_disbursement/__init__.py b/modules/project_disbursement/__init__.py
new file mode 100644
index 0000000000..4effdfa4a2
--- /dev/null
+++ b/modules/project_disbursement/__init__.py
@@ -0,0 +1,2 @@
+# This file is part of Tryton.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
diff --git a/modules/project_disbursement/account.py b/modules/project_disbursement/account.py
new file mode 100644
index 0000000000..11098b686f
--- /dev/null
+++ b/modules/project_disbursement/account.py
@@ -0,0 +1,160 @@
+# This file is part of Tryton.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
+
+from functools import wraps
+
+from trytond.model import ModelView, Workflow, fields
+from trytond.pool import Pool, PoolMeta
+from trytond.pyson import Eval, If
+from trytond.transaction import Transaction
+
+
+class Configuration(metaclass=PoolMeta):
+    __name__ = 'account.configuration'
+
+    default_account_disbursement = fields.MultiValue(fields.Many2One(
+            'account.account', "Default Account Disbursement",
+            domain=[
+                ('closed', '!=', True),
+                ('company', '=', Eval('context', {}).get('company', -1)),
+                ]))
+
+    @classmethod
+    def multivalue_model(cls, field):
+        pool = Pool()
+        if field == 'default_account_disbursement':
+            return pool.get('account.configuration.default_account')
+        return super().multivalue_model(field)
+
+
+class ConfigurationDefaultAccount(metaclass=PoolMeta):
+    __name__ = 'account.configuration.default_account'
+
+    default_account_disbursement = fields.Many2One(
+        'account.account', "Default Account Disbursement",
+        domain=[
+            ('closed', '!=', True),
+            ('company', '=', Eval('company', -1)),
+            ])
+
+
+def AccountTypeMixin(template=False):
+
+    class Mixin:
+        __slots__ = ()
+        disbursement = fields.Boolean(
+            "Disbursement",
+            domain=[
+                If(Eval('statement') != 'balance',
+                    ('disbursement', '=', False), ()),
+                ],
+            states={
+                'invisible': (Eval('statement') != 'balance'),
+                })
+
+    if not template:
+        for fname in dir(Mixin):
+            field = getattr(Mixin, fname)
+            if not isinstance(field, fields.Field):
+                continue
+            field.states['editable'] = (
+                ~Eval('template', None) | Eval('template_override', False))
+    return Mixin
+
+
+class AccountTypeTemplate(AccountTypeMixin(template=True), metaclass=PoolMeta):
+    __name__ = 'account.account.type.template'
+
+    def _get_type_value(self, type=None):
+        values = super()._get_type_value(type=type)
+        if not type or type.disbursement != self.disbursement:
+            values['disbursement'] = self.disbursement
+        return values
+
+
+class AccountType(AccountTypeMixin(), metaclass=PoolMeta):
+    __name__ = 'account.account.type'
+
+
+def process_disbursement(func):
+    @wraps(func)
+    def wrapper(cls, payments):
+        pool = Pool()
+        Disbursement = pool.get('project.disbursement')
+        transaction = Transaction()
+        context = transaction.context
+
+        func(cls, payments)
+
+        to_process = set()
+        for payment in payments:
+            if (isinstance(payment.origin, Disbursement)
+                    and payment.origin.id >= 0):
+                to_process.add(payment.origin)
+        if to_process:
+            with transaction.set_context(
+                    queue_batch=context.get('queue_batch', True)):
+                Disbursement.__queue__.process(to_process)
+    return wrapper
+
+
+class Payment(metaclass=PoolMeta):
+    __name__ = 'account.payment'
+
+    @classmethod
+    def _get_origin(cls):
+        return [*super()._get_origin(), 'project.disbursement']
+
+    @classmethod
+    @ModelView.button
+    @Workflow.transition('succeeded')
+    @process_disbursement
+    def succeed(cls, payments):
+        super().succeed(payments)
+
+    @classmethod
+    @ModelView.button
+    @Workflow.transition('failed')
+    @process_disbursement
+    def fail(cls, payments):
+        super().fail(payments)
+
+
+class StatementLine(metaclass=PoolMeta):
+    __name__ = 'account.statement.line'
+
+    @fields.depends(methods=['payment'])
+    def on_change_related_to(self):
+        pool = Pool()
+        Disbursement = pool.get('project.disbursement')
+        super().on_change_related_to()
+        if self.payment:
+            if isinstance(self.payment.origin, Disbursement):
+                disbursement = self.payment.origin
+                self.account = disbursement.account
+
+
+class InvoiceLine(metaclass=PoolMeta):
+    __name__ = 'account.invoice.line'
+
+    @classmethod
+    def _account_domain(cls, type_):
+        domain = super()._account_domain(type_)
+        if type_ == 'out':
+            domain.append(('type.disbursement', '=', True))
+        return domain
+
+    @classmethod
+    def _get_origin(cls):
+        return [*super()._get_origin(), 'project.disbursement']
+
+    def get_move_lines(self):
+        pool = Pool()
+        Disbursement = pool.get('project.disbursement')
+        lines = super().get_move_lines()
+        if isinstance(self.origin, Disbursement) and self.origin.id >= 0:
+            disbursement = self.origin
+            for line in lines:
+                if line.account.party_required:
+                    line.party = disbursement.payee
+        return lines
diff --git a/modules/project_disbursement/account.xml b/modules/project_disbursement/account.xml
new file mode 100644
index 0000000000..8579d59b94
--- /dev/null
+++ b/modules/project_disbursement/account.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0"?>
+<!-- This file is part of Tryton.  The COPYRIGHT file at the top level of
+this repository contains the full copyright notices and license terms. -->
+<tryton>
+    <data>
+        <record model="ir.ui.view" id="account_configuration_view_form">
+            <field name="model">account.configuration</field>
+            <field name="inherit" ref="account.configuration_view_form"/>
+            <field name="name">account_configuration_form</field>
+        </record>
+
+        <record model="ir.ui.view" id="account_type_template_view_form">
+            <field name="model">account.account.type.template</field>
+            <field name="inherit" ref="account.account_type_template_view_form"/>
+            <field name="name">account_type_form</field>
+        </record>
+
+        <record model="ir.ui.view" id="account_type_view_form">
+            <field name="model">account.account.type</field>
+            <field name="inherit" ref="account.account_type_view_form"/>
+            <field name="name">account_type_form</field>
+        </record>
+    </data>
+</tryton>
diff --git a/modules/project_disbursement/doc/conf.py b/modules/project_disbursement/doc/conf.py
new file mode 100644
index 0000000000..d0943cf74c
--- /dev/null
+++ b/modules/project_disbursement/doc/conf.py
@@ -0,0 +1,111 @@
+# This file is part of Tryton.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
+
+import os
+
+base_url = os.environ.get('DOC_BASE_URL')
+if base_url:
+    modules_url = base_url + '/modules-{module}/'
+    trytond_url = base_url + '/server/'
+else:
+    modules_url = (
+        'https://docs.tryton.org/{series}/modules-{module}/')
+    trytond_url = 'https://docs.tryton.org/{series}/server/'
+
+
+def get_info():
+    import configparser
+    import json
+    import subprocess
+
+    module_dir = os.path.dirname(os.path.dirname(__file__))
+
+    config = configparser.ConfigParser()
+    config.read_file(open(os.path.join(module_dir, 'tryton.cfg')))
+    info = dict(config.items('tryton'))
+
+    metadata_cmd = 'python3 -m build -qq --metadata'
+    if os.environ.get('DOC_NO_ISOLATION'):
+        metadata_cmd += ' --no-isolation'
+    metadata = subprocess.check_output(
+        metadata_cmd, shell=True, encoding='utf-8', cwd=module_dir).strip()
+    metadata = json.loads(metadata)
+    info['name'] = metadata['name']
+    info['description'] = metadata['summary']
+    major_version, minor_version, _ = metadata['version'].split('.', 2)
+    major_version = int(major_version)
+    minor_version = int(minor_version)
+    if minor_version % 2:
+        info['series'] = 'latest'
+        info['branch'] = 'branch/default'
+    else:
+        info['series'] = '.'.join(metadata['version'].split('.', 2)[:2])
+        info['branch'] = 'branch/' + info['series']
+
+    for key in {'depends', 'extras_depend'}:
+        info[key] = info.get(key, '').strip().splitlines()
+    info['modules'] = set(info['depends'] + info['extras_depend'])
+    info['modules'] -= {'ir', 'res'}
+
+    return info
+
+
+info = get_info()
+
+html_theme = 'sphinx_book_theme'
+html_theme_options = {
+    'logo': {
+        'alt_text': "Tryton Documentation",
+        'image_light': 'https://docs.tryton.org/logo-light.svg',
+        'image_dark': 'https://docs.tryton.org/logo-dark.svg',
+        'link': base_url,
+        },
+    'home_page_in_toc': True,
+    'repository_provider': 'gitlab',
+    'repository_url': 'https://code.tryton.org/tryton',
+    'repository_branch': info['branch'],
+    'use_source_button': True,
+    'use_edit_page_button': True,
+    'use_repository_button': True,
+    'use_download_button': False,
+    'path_to_docs': 'modules/project_disbursement/doc',
+    }
+html_title = info['description']
+master_doc = 'index'
+project = info['name']
+release = version = info['series']
+default_role = 'ref'
+highlight_language = 'none'
+exclude_patterns = ['**/*.inc.rst']
+extensions = [
+    'sphinx_copybutton',
+    'sphinx.ext.intersphinx',
+    ]
+intersphinx_mapping = {
+    'trytond': (trytond_url.format(series=version), None),
+    }
+intersphinx_mapping.update({
+        m: (modules_url.format(
+                module=m.replace('_', '-'), series=version), None)
+        for m in info['modules']
+        })
+linkcheck_ignore = [r'/.*', r'https://demo.tryton.org/*']
+linkcheck_request_headers = {
+    'User-Agent': (
+        'TrytonBot/0.0 (https://www.tryton.org/foundation) '
+        'sphinx-linkcheck/0.0'),
+    'Accept-Encoding': 'gzip',
+    }
+linkcheck_workers = 1
+
+try:
+    with open(os.path.join(
+                os.path.dirname(__file__),
+                'linkcheck_ignore.json'), 'r') as f:
+        import json
+        linkcheck_ignore.extend(json.load(f))
+        del json
+except FileNotFoundError:
+    pass
+
+del get_info, info, base_url, modules_url, trytond_url
diff --git a/modules/project_disbursement/doc/design.rst b/modules/project_disbursement/doc/design.rst
new file mode 100644
index 0000000000..0b1a335879
--- /dev/null
+++ b/modules/project_disbursement/doc/design.rst
@@ -0,0 +1,99 @@
+******
+Design
+******
+
+The *Project Disbursement Module* introduce some new concepts and extends some
+existing concepts:
+
+.. _model-account.configuration:
+
+Configuration
+=============
+
+The *Project Configuration* gains new settings to configure the behavior of the
+disbursement.
+
+.. seealso::
+
+   The `Project Configuration <project:model-project.configuration>` concept is
+   introduced by the :doc:`Project Module <project:index>`.
+
+.. _model-project.work:
+
+Work Effort
+===========
+
+The *Work Effort* gains new properties to book `Disbursement
+<model-project.disbursement>`.
+
+.. seealso::
+
+   The `Workf Effort <project:model-project.work>` concept is introduced by the
+   :doc:`Project Module <project:index>`.
+
+.. _concept-project.work.project:
+
+Project
+-------
+
+The *Project* concept gains new properties to setup the `Account
+<account:model-account.account>` and `Payment Journal
+<account_payment:model-account.payment.journal>` for their `Disbursement
+<model-project.disbursement>`.
+
+.. seealso::
+
+   The `Project <project:concept-project.work.project>` concept is introduced
+   by the :doc:`Project Module <project:index>`.
+
+.. _model-project.disbursement:
+
+Disbursement
+============
+
+The *Disbursement* concept is used to manage payment made on behalf of the
+`Party <party:model-party.party>` of the `Work Effort
+<project:model-project.work>`.
+Each disbursement, at any time, can be in one of several different states.
+A disbursement progresses through these states unitl it is either
+:guilabel:`Paid` or :guilabel:`Cancelled`.
+`Payments <account_payment:model-account.payment>` are created when the
+disbursement is validated.
+Once a disbursement is paid, it is included in the invoice generated for the
+`Project <project:concept-project.work.project>`.
+
+.. seealso::
+
+   Disbursements are found by opening the main menu item:
+
+      |Projects --> Disbursements|__
+
+      .. |Projects --> Disbursements| replace:: :menuselection:`Projects --> Disbursements`
+      __ https://demo.tryton.org/model/project.disbursement
+
+
+Account Configuration
+=====================
+
+When the *Project Disbursement Module* is activated, the *Account
+Configuration* gains new properties such as the default account for
+disbursement.
+
+.. seealso::
+
+   The `Account Configuration <account:model-account.configuration>` concept is
+   introduced by the :doc:`Account Module <account:index>`.
+
+.. _model-account.account.type:
+
+Account Type
+============
+
+When the *Project Disbursement Module* is activated, the *Account Type* gains a
+new property that indicates if any `Accounts <account:model-account.account>`
+of this type can be used for disbursement.
+
+.. seealso::
+
+   The `Account Type <account:model-account.account.type>` concept is
+   introduced by the :doc:`Account Module <account:index>`.
diff --git a/modules/project_disbursement/doc/index.rst b/modules/project_disbursement/doc/index.rst
new file mode 100644
index 0000000000..da906513d4
--- /dev/null
+++ b/modules/project_disbursement/doc/index.rst
@@ -0,0 +1,12 @@
+###########################
+Project Disbursement Module
+###########################
+
+The *Project Disbursement Module* provides support for paying and invoicing
+disbursements per project.
+
+.. toctree::
+   :maxdepth: 2
+
+   design
+   releases
diff --git a/modules/project_disbursement/doc/releases.rst b/modules/project_disbursement/doc/releases.rst
new file mode 100644
index 0000000000..21b13c4745
--- /dev/null
+++ b/modules/project_disbursement/doc/releases.rst
@@ -0,0 +1,7 @@
+.. _releases-index:
+
+=============
+Release notes
+=============
+
+.. include:: ../CHANGELOG
diff --git a/modules/project_disbursement/doc/requirements-doc.txt b/modules/project_disbursement/doc/requirements-doc.txt
new file mode 100644
index 0000000000..06b8565f6b
--- /dev/null
+++ b/modules/project_disbursement/doc/requirements-doc.txt
@@ -0,0 +1,3 @@
+build
+sphinx_book_theme
+sphinx_copybutton
diff --git a/modules/project_disbursement/exceptions.py b/modules/project_disbursement/exceptions.py
new file mode 100644
index 0000000000..1211e33013
--- /dev/null
+++ b/modules/project_disbursement/exceptions.py
@@ -0,0 +1,8 @@
+# This file is part of Tryton.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
+
+from trytond.exceptions import UserError
+
+
+class DisbursementError(UserError):
+    pass
diff --git a/modules/project_disbursement/message.xml b/modules/project_disbursement/message.xml
new file mode 100644
index 0000000000..ed9e30149b
--- /dev/null
+++ b/modules/project_disbursement/message.xml
@@ -0,0 +1,10 @@
+<?xml version="1.0"?>
+<!-- This file is part of Tryton.  The COPYRIGHT file at the top level of
+this repository contains the full copyright notices and license terms. -->
+<tryton>
+    <data grouped="1">
+        <record model="ir.message" id="msg_disbursement_cancel_payment">
+            <field name="text">To cancel disbursement "%(disbursement)s", you must fail the payment "%(payment)s".</field>
+        </record>
+    </data>
+</tryton>
diff --git a/modules/project_disbursement/project.py b/modules/project_disbursement/project.py
new file mode 100644
index 0000000000..d04898ee98
--- /dev/null
+++ b/modules/project_disbursement/project.py
@@ -0,0 +1,447 @@
+# This file is part of Tryton.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
+
+from decimal import Decimal
+
+from sql.operators import Abs
+
+from trytond.i18n import gettext
+from trytond.model import (
+    MatchMixin, ModelSQL, ModelView, Workflow, fields, sequence_ordered)
+from trytond.modules.company.model import (
+    employee_field, reset_employee, set_employee)
+from trytond.modules.currency.fields import Monetary
+from trytond.pool import Pool, PoolMeta
+from trytond.pyson import Bool, Eval, Id
+from trytond.transaction import Transaction
+
+from .exceptions import DisbursementError
+
+_disbursment_sequence = fields.Many2One(
+    'ir.sequence', "Disbursement Sequence", required=True,
+    domain=[
+        ('sequence_type', '=',
+            Id('project_disbursement', 'sequence_type_disbursement')),
+        ],
+    help="Used to generate the disbursement number.")
+
+
+class Configuration(metaclass=PoolMeta):
+    __name__ = 'project.configuration'
+
+    disbursement_sequence = fields.MultiValue(_disbursment_sequence)
+
+    @classmethod
+    def multivalue_model(cls, field):
+        pool = Pool()
+        if field == 'disbursement_sequence':
+            return pool.get('project.configuration.sequence')
+        return super().multivalue_model(field)
+
+    @classmethod
+    def default_disbursement_sequence(cls, **pattern):
+        pool = Pool()
+        ModelData = pool.get('ir.model.data')
+        try:
+            return ModelData.get_id(
+                'project_disbursement', 'sequence_disbursement')
+        except KeyError:
+            return None
+
+
+class ConfigurationSequence(metaclass=PoolMeta):
+    __name__ = 'project.configuration.sequence'
+
+    disbursement_sequence = _disbursment_sequence
+
+
+class Work(metaclass=PoolMeta):
+    __name__ = 'project.work'
+
+    account_disbursement = fields.Many2One(
+        'account.account', "Account Disbursement",
+        domain=[
+            ('closed', '!=', True),
+            ('company', '=', Eval('company', -1)),
+            ],
+        states={
+            'invisible': Eval('type') != 'project',
+            },
+        help="Leave empty for the default account.")
+    disbursement_journals = fields.One2Many(
+        'project.disbursement.journal', 'work', "Disbursement Journals",
+        states={
+            'invisible': Eval('type') != 'project',
+            })
+    disbursements = fields.One2Many(
+        'project.disbursement', 'work', "Disbursements",
+        domain=[
+            ('company', '=', Eval('company', -1)),
+            ],
+        states={
+            'editable': Bool(Eval('company', None)),
+            })
+
+    @classmethod
+    def __setup__(cls):
+        super().__setup__()
+        cls.company.states['editable'] &= ~Eval('disbursements', [])
+
+    @classmethod
+    def _get_amount_to_invoice(cls, works):
+        pool = Pool()
+        Currency = pool.get('currency.currency')
+        amounts = super()._get_amount_to_invoice(works)
+        for work in works:
+            for disbursement in work.disbursements:
+                if disbursement.state == 'paid':
+                    amounts[work.id] += Currency.compute(
+                        disbursement.currency, disbursement.amount_to_invoice,
+                        work.company.currency)
+        return amounts
+
+    def _get_lines_to_invoice(self):
+        lines = super()._get_lines_to_invoice()
+        for disbursement in self.disbursements:
+            if disbursement.state == 'paid' and disbursement.amount_to_invoice:
+                lines.append({
+                        'product': None,
+                        'account': disbursement.account,
+                        'quantity': 1,
+                        'unit': None,
+                        'unit_price': disbursement.amount_to_invoice,
+                        'origin': disbursement,
+                        'origins': [],
+                        'description': disbursement.description,
+                        })
+        return lines
+
+    def _group_lines_to_invoice_key(self, line):
+        return super()._group_lines_to_invoice_key(line) + (
+            ('account', line.get('account')),
+            ('origin', line.get('origin')),
+            )
+
+
+class OpenInvoice(metaclass=PoolMeta):
+    __name__ = 'project.open_invoice'
+
+    def do_open_(self, action):
+        works = self.model.search([
+                ('parent', 'child_of', list(map(int, self.records))),
+                ])
+        action, data = super().do_open_(action)
+        invoice_ids = set(data.get('res_id', []))
+        for work in works:
+            for disbursement in work.disbursements:
+                for invoice_line in disbursement.invoice_lines:
+                    if invoice_line.invoice:
+                        invoice_ids.add(invoice_line.invoice.id)
+        data['res_id'] = list(invoice_ids)
+        return action, data
+
+
+class Disbursement(Workflow, ModelSQL, ModelView):
+    __name__ = 'project.disbursement'
+    _rec_name = 'number'
+
+    _states = {
+        'readonly': Eval('state') != 'draft',
+        }
+
+    number = fields.Char("Number", readonly=True)
+    work = fields.Many2One(
+        'project.work', "Work", required=True,
+        domain=[
+            ('company', '=', Eval('company', -1)),
+            ],
+        states={
+            'readonly': _states['readonly'],
+            'editable': Bool(Eval('company', None)),
+            })
+    company = fields.Many2One(
+        'company.company', "Company", required=True, states=_states)
+    description = fields.Char("Description", states=_states)
+
+    reference = fields.Char("Reference", states=_states)
+    reference_type = fields.Selection(
+        'get_reference_types', "Reference Type", states=_states)
+
+    payee = fields.Many2One(
+        'party.party', "Payee", required=True, states=_states)
+    payment_date = fields.Date("Date", required=True, states=_states)
+
+    currency = fields.Many2One(
+        'currency.currency', "Currency",
+        required=True, states=_states)
+    amount = Monetary(
+        "Amount", currency='currency', digits='currency',
+        required=True, states=_states,
+        domain=[
+            ('amount', '>', 0),
+            ])
+
+    attachments = fields.One2Many(
+        'ir.attachment', 'resource', "Attachments",
+        filter=[
+            ('type', '=', 'data'),
+            ])
+
+    payments = fields.One2Many(
+        'account.payment', 'origin', "Payments", readonly=True,
+        domain=[
+            ('kind', '=', 'payable'),
+            ])
+    invoice_lines = fields.One2Many(
+        'account.invoice.line', 'origin', "Invoice Lines", readonly=True)
+
+    validated_by = employee_field(
+        "Validated By",
+        states=['validated', 'paid', 'cancelled'])
+
+    state = fields.Selection([
+            ('draft', "Draft"),
+            ('validated', "Validated"),
+            ('paid', "Paid"),
+            ('cancelled', "Cancelled"),
+            ], "State", readonly=True, required=True, sort=False)
+
+    @classmethod
+    def __setup__(cls):
+        super().__setup__()
+        cls._transitions |= {
+            ('draft', 'validated'),
+            ('draft', 'cancelled'),
+            ('validated', 'validated'),
+            ('validated', 'paid'),
+            ('validated', 'cancelled'),
+            ('paid', 'validated'),
+            ('cancelled', 'draft'),
+            }
+        cls._buttons.update(
+            draft={
+                'invisible': Eval('state') != 'cancelled',
+                'depends': ['state'],
+                },
+            validate_disbursement={
+                'invisible': Eval('state') != 'draft',
+                'depends': ['state'],
+                },
+            process={
+                'invisible': ~Eval('state').in_(['validated', 'paid']),
+                'depends': ['state'],
+                },
+            cancel={
+                'invisible': ~Eval('state').in_(['draft', 'validated']),
+                'depends': ['state'],
+                })
+
+    @classmethod
+    def default_company(cls):
+        return Transaction().context.get('company')
+
+    @fields.depends('company', 'currency')
+    def on_change_company(self):
+        if self.company and not self.currency:
+            self.currency = self.company.currency
+
+    @fields.depends('reference', 'reference_type')
+    def on_change_with_reference(self):
+        pool = Pool()
+        Payment = pool.get('account.payment')
+        if (reference := self.reference) and (type := self.reference_type):
+            reference = getattr(
+                Payment, f'_format_reference_{type}')(reference)
+        return reference
+
+    @classmethod
+    def get_reference_types(cls):
+        pool = Pool()
+        Payment = pool.get('account.payment')
+        return Payment.fields_get(
+            ['reference_type'])['reference_type']['selection']
+
+    @classmethod
+    def order_amount(cls, tables):
+        context = Transaction().context
+        column = cls.amount.sql_column(tables, cls)
+        if isinstance(context.get('amount_order'), Decimal):
+            return [Abs(column - abs(context['amount_order']))]
+        else:
+            return [column]
+
+    @classmethod
+    def default_state(cls):
+        return 'draft'
+
+    @classmethod
+    def _number_sequence(cls, **pattern):
+        pool = Pool()
+        Configuration = pool.get('project.configuration')
+        config = Configuration(1)
+        return config.get_multivalue('disbursement_sequence', **pattern)
+
+    @classmethod
+    def preprocess_values(cls, mode, values):
+        values = super().preprocess_values(mode, values)
+        if mode == 'create':
+            if not values.get('number'):
+                if sequence := cls._number_sequence():
+                    values['number'] = sequence.get()
+        return values
+
+    @classmethod
+    def copy(cls, disbursements, default=None):
+        default = default.copy() if default is not None else {}
+        default.setdefault('number')
+        return super().copy(disbursements, default=default)
+
+    @classmethod
+    @ModelView.button
+    @Workflow.transition('draft')
+    @reset_employee('validated_by')
+    def draft(cls, disbursements):
+        pass
+
+    @classmethod
+    @ModelView.button
+    @Workflow.transition('validated')
+    @set_employee('validated_by')
+    def validate_disbursement(cls, disbursements):
+        pool = Pool()
+        Payment = pool.get('account.payment')
+        payments = []
+        for disbursement in disbursements:
+            if payment := disbursement._get_payment():
+                payments.append(payment)
+        Payment.save(payments)
+
+    def _get_payment(self):
+        pool = Pool()
+        Payment = pool.get('account.payment')
+        amount = self.amount
+        for payment in self.payments:
+            if payment.state != 'failed':
+                amount -= payment.amount
+        if amount > 0:
+            return Payment(
+                company=self.company,
+                journal=self._get_journal(),
+                kind='payable',
+                party=self.payee,
+                date=self.payment_date,
+                amount=amount,
+                origin=self,
+                )
+
+    def _get_journal(self, pattern=None):
+        pattern = pattern.copy() if pattern is not None else {}
+        pattern['currency'] = self.currency.id
+        work = self.work
+        while work:
+            if work.type == 'project':
+                for disbursement_journal in work.disbursement_journals:
+                    if disbursement_journal.match(pattern):
+                        return disbursement_journal.journal
+            work = work.parent
+
+    @property
+    def account(self):
+        pool = Pool()
+        Configuration = pool.get('account.configuration')
+        work = self.work
+        while work:
+            if work.type == 'project':
+                if work.account_disbursement:
+                    return work.account_disbursement
+            work = work.parent
+        configuration = Configuration(1)
+        return configuration.get_multivalue(
+            'default_account_disbursement',
+            company=self.company.id)
+
+    @property
+    def is_paid(self):
+        amount_paid = sum(
+            p.amount for p in self.payments if p.state == 'succeeded')
+        return self.amount <= amount_paid
+
+    @classmethod
+    @ModelView.button
+    def process(cls, disbursements):
+        cls.lock(disbursements)
+        paid, validated = [], []
+        for disbursement in disbursements:
+            if disbursement.is_paid and disbursement.state != 'paid':
+                paid.append(disbursement)
+            elif disbursement.state in {'validated', 'paid'}:
+                validated.append(disbursement)
+        if paid:
+            cls.paid(paid)
+        if validated:
+            cls.validate_disbursement(validated)
+
+    @classmethod
+    @Workflow.transition('paid')
+    def paid(cls, disbursements):
+        pass
+
+    @property
+    def amount_to_invoice(self):
+        amount = self.amount
+        for line in self.invoice_lines:
+            if not line.invoice or line.invoice.state != 'cancelled':
+                amount -= line.amount
+        return max(amount, 0)
+
+    @classmethod
+    @ModelView.button
+    @Workflow.transition('cancelled')
+    def cancel(cls, disbursements):
+        pool = Pool()
+        Payment = pool.get('account.payment')
+        to_delete = []
+        for disbursement in disbursements:
+            for payment in disbursement.payments:
+                if payment.state not in {'draft', 'submitted'}:
+                    raise DisbursementError(gettext(
+                            'project_disbursement'
+                            '.msg_disbursement_cancel_payment',
+                            disbursement=disbursement.rec_name,
+                            payment=payment.rec_name))
+                elif payment.state == 'failed':
+                    continue
+                else:
+                    to_delete.append(payment)
+        if to_delete:
+            Payment.draft(to_delete)
+            Payment.delete(to_delete)
+
+
+class DisbursementJournal(
+        sequence_ordered(), MatchMixin, ModelSQL, ModelView):
+    __name__ = 'project.disbursement.journal'
+
+    work = fields.Many2One(
+        'project.work', "Work", required=True,
+        domain=[
+            ('type', '=', 'project'),
+            ])
+    currency = fields.Many2One('currency.currency', "Currency", required=True)
+    journal = fields.Many2One(
+        'account.payment.journal', "Journal", required=True,
+        domain=[
+            ('company', '=', Eval('company', -1)),
+            ])
+    company = fields.Function(fields.Many2One(
+            'company.company', "Company"),
+        'on_change_with_company')
+
+    @classmethod
+    def __setup__(cls):
+        super().__setup__()
+        cls.__access__.add('work')
+
+    @fields.depends('work', '_parent_work.company')
+    def on_change_with_company(self, name=None):
+        return self.work.company if self.work else None
diff --git a/modules/project_disbursement/project.xml b/modules/project_disbursement/project.xml
new file mode 100644
index 0000000000..3d51963bee
--- /dev/null
+++ b/modules/project_disbursement/project.xml
@@ -0,0 +1,145 @@
+<?xml version="1.0"?>
+<!-- This file is part of Tryton.  The COPYRIGHT file at the top level of
+this repository contains the full copyright notices and license terms. -->
+<tryton>
+    <data>
+        <record model="res.group" id="group_project_disbursement">
+            <field name="name">Project Disbursement</field>
+        </record>
+
+        <record model="ir.ui.view" id="project_configuration_view_form">
+            <field name="model">project.configuration</field>
+            <field name="inherit" ref="project.project_configuration_view_form"/>
+            <field name="name">project_configuration_form</field>
+        </record>
+
+        <record model="ir.sequence.type" id="sequence_type_disbursement">
+            <field name="name">Project Disbursement</field>
+        </record>
+        <record model="ir.sequence.type-res.group" id="sequence_type_disbursement_group_project_admin">
+            <field name="sequence_type" ref="sequence_type_disbursement"/>
+            <field name="group" ref="project.group_project_admin"/>
+        </record>
+
+        <record model="ir.ui.view" id="project_work_view_form">
+            <field name="model">project.work</field>
+            <field name="inherit" ref="project.work_view_form"/>
+            <field name="name">project_work_form</field>
+        </record>
+
+        <record model="ir.ui.view" id="project_disbursement_view_form">
+            <field name="model">project.disbursement</field>
+            <field name="type">form</field>
+            <field name="name">project_disbursement_form</field>
+        </record>
+
+        <record model="ir.ui.view" id="project_disbursement_view_list">
+            <field name="model">project.disbursement</field>
+            <field name="type">tree</field>
+            <field name="name">project_disbursement_list</field>
+        </record>
+
+        <record model="ir.action.act_window" id="act_project_disbursement_form">
+            <field name="name">Disbursements</field>
+            <field name="res_model">project.disbursement</field>
+        </record>
+        <record model="ir.action.act_window.view" id="act_project_disbursement_form_view1">
+            <field name="sequence" eval="10"/>
+            <field name="view" ref="project_disbursement_view_list"/>
+            <field name="act_window" ref="act_project_disbursement_form"/>
+        </record>
+        <record model="ir.action.act_window.view" id="act_project_disbursement_form_view2">
+            <field name="sequence" eval="20"/>
+            <field name="view" ref="project_disbursement_view_form"/>
+            <field name="act_window" ref="act_project_disbursement_form"/>
+        </record>
+        <menuitem
+            parent="project.menu_project"
+            action="act_project_disbursement_form"
+            sequence="30"
+            id="menu_project_disbursement_form"/>
+
+        <record model="ir.rule.group" id="rule_group_project_disbursement_companies">
+            <field name="name">User in companies</field>
+            <field name="model">project.disbursement</field>
+            <field name="global_p" eval="True"/>
+        </record>
+        <record model="ir.rule" id="rule_project_disbursement_companies">
+            <field
+                name="domain"
+                eval="[('company', 'in', Eval('companies', []))]"
+                pyson="1"/>
+            <field name="rule_group" ref="rule_group_project_disbursement_companies"/>
+        </record>
+
+        <record model="ir.model.access" id="access_project_disbursement">
+            <field name="model">project.disbursement</field>
+            <field name="perm_read" eval="True"/>
+            <field name="perm_write" eval="False"/>
+            <field name="perm_create" eval="False"/>
+            <field name="perm_delete" eval="False"/>
+        </record>
+        <record model="ir.model.access" id="access_project_disbursement_disbursement">
+            <field name="model">project.disbursement</field>
+            <field name="group" ref="group_project_disbursement"/>
+            <field name="perm_read" eval="True"/>
+            <field name="perm_write" eval="True"/>
+            <field name="perm_create" eval="True"/>
+            <field name="perm_delete" eval="True"/>
+        </record>
+
+        <record model="ir.model.button" id="project_disbursement_draft_button">
+            <field name="model">project.disbursement</field>
+            <field name="name">draft</field>
+            <field name="string">Draft</field>
+        </record>
+
+        <record model="ir.model.button" id="project_disbursement_validate_button">
+            <field name="model">project.disbursement</field>
+            <field name="name">validate_disbursement</field>
+            <field name="string">Validate</field>
+        </record>
+
+        <record model="ir.model.button" id="project_disbursement_process_button">
+            <field name="model">project.disbursement</field>
+            <field name="name">process</field>
+            <field name="string">Process</field>
+        </record>
+
+        <record model="ir.model.button" id="project_disbursement_cancel_button">
+            <field name="model">project.disbursement</field>
+            <field name="name">cancel</field>
+            <field name="string">Cancel</field>
+        </record>
+
+        <record model="ir.ui.view" id="project_disbursement_journal_view_form">
+            <field name="model">project.disbursement.journal</field>
+            <field name="type">form</field>
+            <field name="name">project_disbursement_journal_form</field>
+        </record>
+
+        <record model="ir.ui.view" id="project_disbursement_journal_view_list">
+            <field name="model">project.disbursement.journal</field>
+            <field name="type">tree</field>
+            <field name="priority" eval="10"/>
+            <field name="name">project_disbursement_journal_list</field>
+        </record>
+
+        <record model="ir.ui.view" id="project_disbursement_journal_view_list_sequence">
+            <field name="model">project.disbursement.journal</field>
+            <field name="type">tree</field>
+            <field name="priority" eval="20"/>
+            <field name="name">project_disbursement_journal_list_sequence</field>
+        </record>
+    </data>
+    <data noupdate="1">
+        <record model="ir.sequence" id="sequence_disbursement">
+            <field name="name">Disbursement</field>
+            <field name="sequence_type" ref="sequence_type_disbursement"/>
+        </record>
+
+        <record model="project.configuration.sequence" id="project.project_configuration_sequence">
+            <field name="disbursement_sequence" ref="sequence_disbursement"/>
+        </record>
+    </data>
+</tryton>
diff --git a/modules/project_disbursement/pyproject.toml b/modules/project_disbursement/pyproject.toml
new file mode 100644
index 0000000000..3813d4b1c0
--- /dev/null
+++ b/modules/project_disbursement/pyproject.toml
@@ -0,0 +1,59 @@
+[build-system]
+requires = ['hatchling >= 1', 'hatch-tryton']
+build-backend = 'hatchling.build'
+
+[project]
+name = 'trytond_project_disbursement'
+dynamic = ['version', 'dependencies', 'optional-dependencies', 'authors', 'readme']
+requires-python = '>=3.10'
+maintainers = [
+    {name = "Tryton", email = "foundation@tryton.org"},
+    ]
+description = "Projects disbursement for Tryton"
+license = 'GPL-3.0-or-later'
+license-files = ['LICENSE', 'icons/LICENSE', 'COPYRIGHT']
+keywords = ["tryton", "project", "disbursement", "invoice"]
+classifiers = [
+    "Development Status :: 5 - Production/Stable",
+    "Environment :: Plugins",
+    "Framework :: Tryton",
+    "Topic :: Office/Business",
+    "Topic :: Software Development :: Libraries :: Python Modules",
+    ]
+
+[project.entry-points.'trytond.modules']
+project_disbursement = 'trytond.modules.project_disbursement'
+
+[project.urls]
+homepage = "https://www.tryton.org/"
+documentation = "https://docs.tryton.org/modules-project-disbursement/"
+changelog = "https://docs.tryton.org/modules-project-disbursement/releases.html"
+forum = "https://www.tryton.org/forum"
+issues = "https://bugs.tryton.org/tryton"
+repository = "https://code.tryton.org/tryton"
+funding = "https://www.tryton.org/donate"
+
+[tool.hatch.build]
+include = [
+    '**/tryton.cfg',
+    '**/*.py',
+    '**/*.xml',
+    'view/**/*.xml',
+    'locale/**/*.po',
+    '**/*.fodt',
+    'icons/**/*.svg',
+    'tests/**/*.rst',
+    'tests/**/*.json',
+    ]
+exclude = ['doc']
+
+[tool.hatch.build.targets.wheel.sources]
+"" = "trytond/modules/project_disbursement"
+
+[tool.hatch.metadata.hooks.tryton]
+dependencies = ['python-sql']
+copyright = 'COPYRIGHT'
+readme = 'README.rst'
+
+[tool.hatch.metadata.hooks.tryton.tryton-optional-dependencies]
+test = ['proteus']
diff --git a/modules/project_disbursement/tests/__init__.py b/modules/project_disbursement/tests/__init__.py
new file mode 100644
index 0000000000..4effdfa4a2
--- /dev/null
+++ b/modules/project_disbursement/tests/__init__.py
@@ -0,0 +1,2 @@
+# This file is part of Tryton.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
diff --git a/modules/project_disbursement/tests/scenario_project_disbursement.rst b/modules/project_disbursement/tests/scenario_project_disbursement.rst
new file mode 100644
index 0000000000..aee0fecc5a
--- /dev/null
+++ b/modules/project_disbursement/tests/scenario_project_disbursement.rst
@@ -0,0 +1,197 @@
+=============================
+Project Disbursement Scenario
+=============================
+
+Imports::
+
+    >>> import datetime as dt
+    >>> from decimal import Decimal
+
+    >>> from proteus import Model
+    >>> from trytond.modules.account.tests.tools import (
+    ...     create_chart, create_fiscalyear, get_accounts)
+    >>> from trytond.modules.account_invoice.tests.tools import (
+    ...     set_fiscalyear_invoice_sequences)
+    >>> from trytond.modules.company.tests.tools import create_company
+    >>> from trytond.tests.tools import activate_modules, assertEqual
+
+    >>> today = dt.date.today()
+
+Activate modules::
+
+    >>> config = activate_modules('project_disbursement', create_company, create_chart)
+
+    >>> Account = Model.get('account.account')
+    >>> AccountJournal = Model.get('account.journal')
+    >>> Disbursement = Model.get('project.disbursement')
+    >>> Invoice = Model.get('account.invoice')
+    >>> Party = Model.get('party.party')
+    >>> PaymentJournal = Model.get('account.payment.journal')
+    >>> Statement = Model.get('account.statement')
+    >>> StatementJournal = Model.get('account.statement.journal')
+    >>> Work = Model.get('project.work')
+
+Create fiscal year::
+
+    >>> fiscalyear = set_fiscalyear_invoice_sequences(
+    ...     create_fiscalyear(today=today))
+    >>> fiscalyear.click('create_period')
+
+Get accounts::
+
+    >>> accounts = get_accounts()
+    >>> account_disbursement, = Account.find([('code', '=', '1.2.3')])
+    >>> account_disbursement_type = account_disbursement.type
+    >>> account_disbursement_type.template_override = True
+    >>> account_disbursement_type.disbursement = True
+    >>> account_disbursement_type.save()
+
+Create payment journal::
+
+    >>> payment_journal = PaymentJournal(name='Manual', process_method='manual')
+    >>> payment_journal.save()
+
+Create statement journal::
+
+    >>> account_journal, = AccountJournal.find([('code', '=', 'STA')], limit=1)
+    >>> statement_journal = StatementJournal(
+    ...     name="Statement",
+    ...     journal=account_journal,
+    ...     validation='amount',
+    ...     account=accounts['cash'])
+    >>> statement_journal.save()
+
+Create parties::
+
+    >>> customer = Party(name="Customer")
+    >>> customer.save()
+    >>> supplier = Party(name="Supplier")
+    >>> supplier.save()
+
+Create a project with a task::
+
+    >>> project = Work(type='project')
+    >>> project.name = "Project"
+    >>> project.party = customer
+    >>> project.project_invoice_method = 'effort'
+    >>> project.account_disbursement = account_disbursement
+    >>> disbursement_journal = project.disbursement_journals.new()
+    >>> disbursement_journal.currency = project.company.currency
+    >>> disbursement_journal.journal = payment_journal
+    >>> task = project.children.new()
+    >>> task.name = "Task"
+    >>> project.save()
+    >>> task, = project.children
+
+Add and validate a disbursement to the task::
+
+    >>> disbursement = Disbursement()
+    >>> disbursement.work = task
+    >>> disbursement.payee = supplier
+    >>> disbursement.amount = Decimal('100.00')
+    >>> disbursement.payment_date = today
+    >>> disbursement.click('validate_disbursement')
+    >>> disbursement.state
+    'validated'
+
+Pay partially the disbursement::
+
+    >>> payment, = disbursement.payments
+    >>> payment.amount
+    Decimal('100.00')
+    >>> payment.amount = Decimal('50.00')
+    >>> payment.click('submit')
+    >>> payment.state
+    'submitted'
+    >>> payment.click('approve')
+    >>> payment.state
+    'approved'
+    >>> process_payment = payment.click('process_wizard')
+    >>> payment.state
+    'processing'
+    >>> payment.click('succeed')
+    >>> payment.state
+    'succeeded'
+
+    >>> disbursement.reload()
+    >>> len(disbursement.payments)
+    2
+
+Fail the remaining disbursement::
+
+    >>> payment, = [p for p in disbursement.payments if p.state == 'draft']
+    >>> payment.click('submit')
+    >>> payment.click('approve')
+    >>> process_payment = payment.click('process_wizard')
+    >>> payment.click('fail')
+    >>> payment.state
+    'failed'
+
+    >>> disbursement.reload()
+    >>> len(disbursement.payments)
+    3
+
+Pay totally the disbursement::
+
+    >>> payment, = [p for p in disbursement.payments if p.state == 'draft']
+    >>> payment.click('submit')
+    >>> payment.click('approve')
+    >>> process_payment = payment.click('process_wizard')
+    >>> payment.click('succeed')
+    >>> payment.state
+    'succeeded'
+
+    >>> disbursement.reload()
+    >>> len(disbursement.payments)
+    3
+
+Create and validate a statement for the payments::
+
+    >>> payments = [p for p in disbursement.payments if p.state == 'succeeded']
+
+    >>> statement = Statement(
+    ...     name="001",
+    ...     journal=statement_journal,
+    ...     total_amount=Decimal('-100.00'))
+    >>> line = statement.lines.new()
+    >>> line.date = today
+    >>> line.amount = Decimal('-50.00')
+    >>> line.related_to = payments[0]
+    >>> assertEqual(line.party, supplier)
+    >>> assertEqual(line.account, account_disbursement)
+    >>> line = statement.lines.new()
+    >>> line.date = today
+    >>> line.amount = Decimal('-50.00')
+    >>> line.related_to = payments[1]
+    >>> statement.click('validate_statement')
+    >>> statement.state
+    'validated'
+
+    >>> account_disbursement.reload()
+    >>> account_disbursement.balance
+    Decimal('100.00')
+
+Check disbursement is paid::
+
+    >>> disbursement.reload()
+    >>> disbursement.state
+    'paid'
+
+    >>> project.reload()
+    >>> project.amount_to_invoice
+    Decimal('100.00')
+
+Invoice the project::
+
+    >>> project.click('invoice')
+    >>> project.amount_to_invoice
+    Decimal('0.00')
+
+    >>> invoice, = Invoice.find([])
+    >>> invoice.click('post')
+    >>> invoice.state
+    'posted'
+
+    >>> account_disbursement.reload()
+    >>> account_disbursement.balance
+    Decimal('0.00')
diff --git a/modules/project_disbursement/tests/test_module.py b/modules/project_disbursement/tests/test_module.py
new file mode 100644
index 0000000000..a7899076fe
--- /dev/null
+++ b/modules/project_disbursement/tests/test_module.py
@@ -0,0 +1,11 @@
+# This file is part of Tryton.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
+from trytond.tests.test_tryton import ModuleTestCase
+
+
+class ProjectDisbursementTestCase(ModuleTestCase):
+    "Test Project Disbursement module"
+    module = 'project_disbursement'
+
+
+del ModuleTestCase
diff --git a/modules/project_disbursement/tests/test_scenario.py b/modules/project_disbursement/tests/test_scenario.py
new file mode 100644
index 0000000000..dc1d23e7e5
--- /dev/null
+++ b/modules/project_disbursement/tests/test_scenario.py
@@ -0,0 +1,8 @@
+# This file is part of Tryton.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
+
+from trytond.tests.test_tryton import load_doc_tests
+
+
+def load_tests(*args, **kwargs):
+    return load_doc_tests(__name__, __file__, *args, **kwargs)
diff --git a/modules/project_disbursement/tox.ini b/modules/project_disbursement/tox.ini
new file mode 100644
index 0000000000..6365f4e36f
--- /dev/null
+++ b/modules/project_disbursement/tox.ini
@@ -0,0 +1,24 @@
+[tox]
+envlist = {py310,py311,py312,py313,py314}-{sqlite,postgresql}
+
+[testenv]
+changedir = {env_site_packages_dir}
+extras = test
+commands =
+    coverage run --rcfile={toxinidir}/tox.ini --source=trytond.modules.project_disbursement --omit=*/tests/* -m xmlrunner discover -s trytond.modules.project_disbursement {posargs}
+commands_post =
+    coverage report --rcfile={toxinidir}/tox.ini
+    coverage xml --rcfile={toxinidir}/tox.ini -o {package_root}/coverage.xml
+deps =
+    coverage
+    unittest-xml-reporting
+    postgresql: psycopg[pool,binary] >= 3
+passenv = *
+setenv =
+    sqlite: TRYTOND_DATABASE_URI={env:SQLITE_URI:sqlite://}
+    postgresql: TRYTOND_DATABASE_URI={env:POSTGRESQL_URI:postgresql://}
+    sqlite: DB_NAME={env:DB_NAME::memory:}
+    postgresql: DB_NAME={env:DB_NAME:test}
+
+[coverage:run]
+relative_files = true
diff --git a/modules/project_disbursement/tryton.cfg b/modules/project_disbursement/tryton.cfg
new file mode 100644
index 0000000000..f0e34815dd
--- /dev/null
+++ b/modules/project_disbursement/tryton.cfg
@@ -0,0 +1,36 @@
+[tryton]
+version=8.1.0
+depends:
+    account
+    account_payment
+    account_statement
+    company
+    currency
+    ir
+    party
+    project
+    project_invoice
+xml:
+    account.xml
+    project.xml
+    message.xml
+
+[register]
+model:
+    account.Configuration
+    account.ConfigurationDefaultAccount
+    account.AccountTypeTemplate
+    account.AccountType
+    account.Payment
+    account.StatementLine
+    account.InvoiceLine
+    project.Configuration
+    project.ConfigurationSequence
+    project.Work
+    project.Disbursement
+    project.DisbursementJournal
+
+wizard:
+    project.OpenInvoice
+
+report:
diff --git a/modules/project_disbursement/view/account_configuration_form.xml b/modules/project_disbursement/view/account_configuration_form.xml
new file mode 100644
index 0000000000..537b95152d
--- /dev/null
+++ b/modules/project_disbursement/view/account_configuration_form.xml
@@ -0,0 +1,11 @@
+<?xml version="1.0"?>
+<!-- This file is part of Tryton.  The COPYRIGHT file at the top level of
+this repository contains the full copyright notices and license terms. -->
+<data>
+    <xpath expr="/form" position="inside">
+        <separator id="project_disbursement" string="Project Disbursement" colspan="4"/>
+        <label name="default_account_disbursement"/>
+        <field name="default_account_disbursement"/>
+        <newline/>
+    </xpath>
+</data>
diff --git a/modules/project_disbursement/view/account_type_form.xml b/modules/project_disbursement/view/account_type_form.xml
new file mode 100644
index 0000000000..2ca8d4cea2
--- /dev/null
+++ b/modules/project_disbursement/view/account_type_form.xml
@@ -0,0 +1,9 @@
+<?xml version="1.0"?>
+<!-- This file is part of Tryton.  The COPYRIGHT file at the top level of
+this repository contains the full copyright notices and license terms. -->
+<data>
+    <xpath expr="//group[@id='checkboxes']" position="inside">
+        <label name="disbursement"/>
+        <field name="disbursement" xexpand="0" width="25"/>
+    </xpath>
+</data>
diff --git a/modules/project_disbursement/view/project_configuration_form.xml b/modules/project_disbursement/view/project_configuration_form.xml
new file mode 100644
index 0000000000..a57767cde8
--- /dev/null
+++ b/modules/project_disbursement/view/project_configuration_form.xml
@@ -0,0 +1,9 @@
+<?xml version="1.0"?>
+<!-- This file is part of Tryton.  The COPYRIGHT file at the top level of
+this repository contains the full copyright notices and license terms. -->
+<data>
+    <xpath expr="//field[@name='work_sequence']" position="after">
+        <label name="disbursement_sequence"/>
+        <field name="disbursement_sequence"/>
+    </xpath>
+</data>
diff --git a/modules/project_disbursement/view/project_disbursement_form.xml b/modules/project_disbursement/view/project_disbursement_form.xml
new file mode 100644
index 0000000000..99589ecea2
--- /dev/null
+++ b/modules/project_disbursement/view/project_disbursement_form.xml
@@ -0,0 +1,58 @@
+<?xml version="1.0"?>
+<!-- This file is part of Tryton.  The COPYRIGHT file at the top level of
+this repository contains the full copyright notices and license terms. -->
+<form>
+    <label name="payee"/>
+    <field name="payee"/>
+    <label name="number"/>
+    <field name="number"/>
+
+    <label name="reference"/>
+    <field name="reference"/>
+    <label name="reference_type"/>
+    <field name="reference_type"/>
+
+    <label name="description"/>
+    <field name="description" colspan="3"/>
+
+    <label name="work"/>
+    <field name="work" colspan="3"/>
+
+    <label name="amount"/>
+    <field name="amount"/>
+    <label name="currency"/>
+    <field name="currency"/>
+
+    <label name="payment_date"/>
+    <field name="payment_date"/>
+
+    <notebook>
+        <page name="attachments">
+            <field name="attachments" colspan="4"/>
+        </page>
+        <page name="payments">
+            <field name="payments" colspan="4"/>
+        </page>
+        <page name="invoice_lines">
+            <field name="invoice_lines" colspan="4"/>
+        </page>
+        <page string="Other Info" id="info">
+            <label name="company"/>
+            <field name="company"/>
+            <newline/>
+
+            <label name="validated_by"/>
+            <field name="validated_by"/>
+        </page>
+    </notebook>
+
+
+    <label name="state"/>
+    <field name="state"/>
+    <group col="-1" colspan="2" id="buttons">
+        <button name="cancel" icon="tryton-cancel"/>
+        <button name="draft" icon="tryton-back"/>
+        <button name="validate_disbursement" icon="tryton-forward"/>
+        <button name="process" icon="tryton-refresh"/>
+    </group>
+</form>
diff --git a/modules/project_disbursement/view/project_disbursement_journal_form.xml b/modules/project_disbursement/view/project_disbursement_journal_form.xml
new file mode 100644
index 0000000000..82b7501e0c
--- /dev/null
+++ b/modules/project_disbursement/view/project_disbursement_journal_form.xml
@@ -0,0 +1,14 @@
+<?xml version="1.0"?>
+<!-- This file is part of Tryton.  The COPYRIGHT file at the top level of
+this repository contains the full copyright notices and license terms. -->
+<form>
+    <label name="work"/>
+    <field name="work"/>
+    <label name="sequence"/>
+    <field name="sequence"/>
+
+    <label name="currency"/>
+    <field name="currency"/>
+    <label name="journal"/>
+    <field name="journal" widget="selection"/>
+</form>
diff --git a/modules/project_disbursement/view/project_disbursement_journal_list.xml b/modules/project_disbursement/view/project_disbursement_journal_list.xml
new file mode 100644
index 0000000000..af9cf774e3
--- /dev/null
+++ b/modules/project_disbursement/view/project_disbursement_journal_list.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0"?>
+<!-- This file is part of Tryton.  The COPYRIGHT file at the top level of
+this repository contains the full copyright notices and license terms. -->
+<tree>
+    <field name="work" expand="1"/>
+    <field name="currency" optional="0"/>
+    <field name="journal" expand="1"/>
+</tree>
diff --git a/modules/project_disbursement/view/project_disbursement_journal_list_sequence.xml b/modules/project_disbursement/view/project_disbursement_journal_list_sequence.xml
new file mode 100644
index 0000000000..f3f09b7771
--- /dev/null
+++ b/modules/project_disbursement/view/project_disbursement_journal_list_sequence.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0"?>
+<!-- This file is part of Tryton.  The COPYRIGHT file at the top level of
+this repository contains the full copyright notices and license terms. -->
+<tree sequence="sequence">
+    <field name="work" expand="1"/>
+    <field name="currency" optional="0"/>
+    <field name="journal" expand="1"/>
+</tree>
diff --git a/modules/project_disbursement/view/project_disbursement_list.xml b/modules/project_disbursement/view/project_disbursement_list.xml
new file mode 100644
index 0000000000..299eba28b2
--- /dev/null
+++ b/modules/project_disbursement/view/project_disbursement_list.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0"?>
+<!-- This file is part of Tryton.  The COPYRIGHT file at the top level of
+this repository contains the full copyright notices and license terms. -->
+<tree>
+    <field name="company" optional="1"/>
+    <field name="number" expand="1"/>
+    <field name="work" expand="1"/>
+    <field name="payee" expand="2"/>
+    <field name="reference" expand="1"/>
+    <field name="payment_date" optional="1"/>
+    <field name="amount" optional="0"/>
+    <field name="state"/>
+</tree>
diff --git a/modules/project_disbursement/view/project_work_form.xml b/modules/project_disbursement/view/project_work_form.xml
new file mode 100644
index 0000000000..70101af644
--- /dev/null
+++ b/modules/project_disbursement/view/project_work_form.xml
@@ -0,0 +1,15 @@
+<?xml version="1.0"?>
+<!-- This file is part of Tryton.  The COPYRIGHT file at the top level of
+this repository contains the full copyright notices and license terms. -->
+<data>
+    <xpath expr="//notebook" position="inside">
+        <page name="disbursements">
+            <label name="account_disbursement"/>
+            <field name="account_disbursement"/>
+
+            <field name="disbursement_journals" colspan="4" view_ids="project_disbursement.project_disbursement_journal_view_list_sequence"/>
+
+            <field name="disbursements" colspan="4"/>
+        </page>
+    </xpath>
+</data>