diff --git a/doc/migration.rst b/doc/migration.rst
index f3d736f872..32eec2719f 100644
--- a/doc/migration.rst
+++ b/doc/migration.rst
@@ -14,6 +14,26 @@ a database from another series.
 .. warning::
    You cannot skip more than 2 series ending with ``.0``.
 
+7.8
+---
+
+After
+~~~~~
+
+* If ``account_payment_sepa`` module is activated, fill the address of
+  validated mandates with default value with the ``trytond-console``:
+
+  .. code-block:: python
+
+     Mandate = pool.get('account.payment.sepa.mandate')
+     mandates = Mandate.search([
+         ('state', '=', 'validated'),
+         ('address', '=', None),
+         ])
+     for mandate in mandates:
+         mandate.address = mandate.on_change_party()
+     Mandate.save(mandates)
+
 7.6
 ---
 
diff --git a/modules/account_payment_sepa/CHANGELOG b/modules/account_payment_sepa/CHANGELOG
index f35b458774..6a88e64a96 100644
--- a/modules/account_payment_sepa/CHANGELOG
+++ b/modules/account_payment_sepa/CHANGELOG
@@ -1,3 +1,4 @@
+* Add party's address to the mandate
 
 Version 7.6.0 - 2025-04-28
 --------------------------
diff --git a/modules/account_payment_sepa/mandate.fodt b/modules/account_payment_sepa/mandate.fodt
index 8e567ff9e8..2b81f9db5a 100644
--- a/modules/account_payment_sepa/mandate.fodt
+++ b/modules/account_payment_sepa/mandate.fodt
@@ -753,7 +753,7 @@
       <text:p text:style-name="P16">Your address</text:p>
      </table:table-cell>
      <table:table-cell table:style-name="Table1.B1" table:number-columns-spanned="2" office:value-type="string">
-      <text:p text:style-name="P13"><text:placeholder text:placeholder-type="text">&lt;mandate.party.addresses[0].street if mandate.party.addresses else &apos;&apos;&gt;</text:placeholder></text:p>
+      <text:p text:style-name="P13"><text:placeholder text:placeholder-type="text">&lt;mandate.address.street if mandate.address else &apos;&apos;&gt;</text:placeholder></text:p>
      </table:table-cell>
      <table:covered-table-cell/>
     </table:table-row>
@@ -771,10 +771,10 @@
       <text:p text:style-name="P15"/>
      </table:table-cell>
      <table:table-cell table:style-name="Table1.B5" office:value-type="string">
-      <text:p text:style-name="Table_20_Contents"><text:placeholder text:placeholder-type="text">&lt;mandate.party.addresses[0].postal_code if mandate.party.addresses else &apos;&apos;&gt;</text:placeholder></text:p>
+      <text:p text:style-name="Table_20_Contents"><text:placeholder text:placeholder-type="text">&lt;mandate.address.postal_code if mandate.address else &apos;&apos;&gt;</text:placeholder></text:p>
      </table:table-cell>
      <table:table-cell table:style-name="Table1.B1" office:value-type="string">
-      <text:p text:style-name="P13"><text:placeholder text:placeholder-type="text">&lt;mandate.party.addresses[0].city if mandate.party.addresses else &apos;&apos;&gt;</text:placeholder></text:p>
+      <text:p text:style-name="P13"><text:placeholder text:placeholder-type="text">&lt;mandate.address.city if mandate.address else &apos;&apos;&gt;</text:placeholder></text:p>
      </table:table-cell>
     </table:table-row>
     <table:table-row>
@@ -793,7 +793,7 @@
       <text:p text:style-name="P21"/>
      </table:table-cell>
      <table:table-cell table:style-name="Table1.B1" table:number-columns-spanned="2" office:value-type="string">
-      <text:p text:style-name="P13"><text:placeholder text:placeholder-type="text">&lt;mandate.party.addresses[0].country.rec_name if mandate.party.addresses and mandate.party.addresses[0].country else &apos;&apos;&gt;</text:placeholder></text:p>
+      <text:p text:style-name="P13"><text:placeholder text:placeholder-type="text">&lt;mandate.address.country.rec_name if mandate.address and mandate.address.country else &apos;&apos;&gt;</text:placeholder></text:p>
      </table:table-cell>
      <table:covered-table-cell/>
     </table:table-row>
@@ -883,7 +883,7 @@
       <text:p text:style-name="P15"/>
      </table:table-cell>
      <table:table-cell table:style-name="Table1.B1" table:number-columns-spanned="2" office:value-type="string">
-      <text:p text:style-name="P14"><text:placeholder text:placeholder-type="text">&lt;mandate.company.party.addresses[0].street if mandate.company.party.addresses else &apos;&apos;&gt;</text:placeholder></text:p>
+      <text:p text:style-name="P14"><text:placeholder text:placeholder-type="text">&lt;mandate.company_address.street if mandate.company_address else &apos;&apos;&gt;</text:placeholder></text:p>
      </table:table-cell>
      <table:covered-table-cell/>
     </table:table-row>
@@ -901,10 +901,10 @@
       <text:p text:style-name="P15"/>
      </table:table-cell>
      <table:table-cell table:style-name="Table1.B5" office:value-type="string">
-      <text:p text:style-name="P14"><text:placeholder text:placeholder-type="text">&lt;mandate.company.party.addresses[0].postal_code if mandate.company.party.addresses else &apos;&apos;&gt;</text:placeholder></text:p>
+      <text:p text:style-name="P14"><text:placeholder text:placeholder-type="text">&lt;mandate.company_address.postal_code if mandate.company_address else &apos;&apos;&gt;</text:placeholder></text:p>
      </table:table-cell>
      <table:table-cell table:style-name="Table1.B1" office:value-type="string">
-      <text:p text:style-name="P14"><text:placeholder text:placeholder-type="text">&lt;mandate.company.party.addresses[0].city if mandate.company.party.addresses else &apos;&apos;&gt;</text:placeholder></text:p>
+      <text:p text:style-name="P14"><text:placeholder text:placeholder-type="text">&lt;mandate.company_address.city if mandate.company_address else &apos;&apos;&gt;</text:placeholder></text:p>
      </table:table-cell>
     </table:table-row>
     <table:table-row>
@@ -923,7 +923,7 @@
       <text:p text:style-name="P15"/>
      </table:table-cell>
      <table:table-cell table:style-name="Table1.B1" table:number-columns-spanned="2" office:value-type="string">
-      <text:p text:style-name="P14"><text:placeholder text:placeholder-type="text">&lt;mandate.company.party.addresses[0].country.rec_name if mandate.company.party.addresses and mandate.company.party.addresses[0].country else &apos;&apos;&gt;</text:placeholder></text:p>
+      <text:p text:style-name="P14"><text:placeholder text:placeholder-type="text">&lt;mandate.company_address.country.rec_name if mandate.company_address and mandate.company_address.country else &apos;&apos;&gt;</text:placeholder></text:p>
      </table:table-cell>
      <table:covered-table-cell/>
     </table:table-row>
@@ -1018,4 +1018,4 @@
    <text:p text:style-name="P31"><text:placeholder text:placeholder-type="text">&lt;/for&gt;</text:placeholder></text:p>
   </office:text>
  </office:body>
-</office:document>
\ No newline at end of file
+</office:document>
diff --git a/modules/account_payment_sepa/payment.py b/modules/account_payment_sepa/payment.py
index 5e9902ef57..81ebcef03f 100644
--- a/modules/account_payment_sepa/payment.py
+++ b/modules/account_payment_sepa/payment.py
@@ -26,7 +26,8 @@ from trytond.pool import Pool, PoolMeta
 from trytond.pyson import Eval, If
 from trytond.report import Report
 from trytond.tools import (
-    grouped_slice, is_full_text, lstrip_wildcard, reduce_ids, sortable_values)
+    cached_property, grouped_slice, is_full_text, lstrip_wildcard, reduce_ids,
+    sortable_values)
 from trytond.transaction import Transaction
 
 from .sepa_handler import CAMT054
@@ -503,12 +504,19 @@ class Mandate(Workflow, ModelSQL, ModelView):
             'company': Eval('company', -1),
             },
         depends={'company'})
+    address = fields.Many2One(
+        'party.address', "Address",
+        domain=[
+            ('party', '=', Eval('party', -1)),
+            ],
+        states={
+            'readonly': Eval('state').in_(['validated', 'cancelled']),
+            'required': Eval('state') == 'validated',
+            })
     account_number = fields.Many2One('bank.account.number', 'Account Number',
         ondelete='RESTRICT',
         states={
-            'readonly': (
-                Eval('state').in_(['validated', 'cancelled'])
-                | ~Eval('party')),
+            'readonly': Eval('state').in_(['validated', 'cancelled']),
             'required': Eval('state') == 'validated',
             },
         domain=[
@@ -603,6 +611,14 @@ class Mandate(Workflow, ModelSQL, ModelView):
                 t, (t.state, Index.Equality(cardinality='low')),
                 where=t.state.in_(['draft', 'requested'])))
 
+    @fields.depends('party', '_parent_party.id')
+    def on_change_party(self):
+        if self.party and self.party.id >= 0:
+            self.address = self.party.address_get()
+        else:
+            self.address = None
+            self.account_number = None
+
     @staticmethod
     def default_company():
         return Transaction().context.get('company')
@@ -612,6 +628,10 @@ class Mandate(Workflow, ModelSQL, ModelView):
         self.identification_readonly = self.default_identification_readonly(
             company=self.company.id if self.company else None)
 
+    @cached_property
+    def company_address(self):
+        return self.company.party.address_get()
+
     @staticmethod
     def default_type():
         return 'recurrent'
diff --git a/modules/account_payment_sepa/tests/scenario_account_payment_sepa.rst b/modules/account_payment_sepa/tests/scenario_account_payment_sepa.rst
index bc08ec86f2..4c3b3b8d56 100644
--- a/modules/account_payment_sepa/tests/scenario_account_payment_sepa.rst
+++ b/modules/account_payment_sepa/tests/scenario_account_payment_sepa.rst
@@ -82,6 +82,12 @@ Create mandate::
     >>> mandate.identification = 'MANDATE'
     >>> mandate.type = 'recurrent'
     >>> mandate.click('request')
+    >>> mandate.state
+    'requested'
+
+    >>> mandate_report = Report('account.payment.sepa.mandate')
+    >>> _ = mandate_report.execute([mandate])
+
     >>> mandate.signature_date = today
     >>> mandate.click('validate_mandate')
     >>> mandate.state
diff --git a/modules/account_payment_sepa/tests/test_module.py b/modules/account_payment_sepa/tests/test_module.py
index e01593b97a..91e9d1e2d0 100644
--- a/modules/account_payment_sepa/tests/test_module.py
+++ b/modules/account_payment_sepa/tests/test_module.py
@@ -74,6 +74,7 @@ def setup_mandate(company, customer, account):
     return Mandate.create([{
                 'company': company,
                 'party': customer,
+                'address': customer.addresses[0],
                 'account_number': account.numbers[0],
                 'identification': 'MANDATE',
                 'type': 'recurrent',
diff --git a/modules/account_payment_sepa/view/mandate_form.xml b/modules/account_payment_sepa/view/mandate_form.xml
index 16dc3fe46c..cf930adea7 100644
--- a/modules/account_payment_sepa/view/mandate_form.xml
+++ b/modules/account_payment_sepa/view/mandate_form.xml
@@ -4,8 +4,13 @@ this repository contains the full copyright notices and license terms. -->
 <form>
     <label name="party"/>
     <field name="party"/>
+    <label name="address"/>
+    <field name="address"/>
+
     <label name="account_number"/>
     <field name="account_number"/>
+    <newline/>
+
     <label name="company"/>
     <field name="company"/>
     <newline/>
diff --git a/modules/account_payment_sepa/view/mandate_list.xml b/modules/account_payment_sepa/view/mandate_list.xml
index fa7b285f6b..7402a72eb6 100644
--- a/modules/account_payment_sepa/view/mandate_list.xml
+++ b/modules/account_payment_sepa/view/mandate_list.xml
@@ -4,6 +4,7 @@ this repository contains the full copyright notices and license terms. -->
 <tree>
     <field name="company" expand="1" optional="1"/>
     <field name="party" expand="2"/>
+    <field name="address" expand="1" optional="1"/>
     <field name="account_number" expand="1"/>
     <field name="identification" expand="1"/>
     <field name="type"/>