diff --git a/account.py b/account.py
index 70477a8a26..5e34027f6a 100644
--- a/account.py
+++ b/account.py
@@ -1243,3 +1243,114 @@ class CreateChartAccount(Wizard):
         return {}
 
 CreateChartAccount()
+
+
+class OpenThirdPartyBalanceInit(WizardOSV):
+    _name = 'account.account.open_third_party_balance.init'
+    company = fields.Many2One('company.company', 'Company', required=True)
+    fiscalyear = fields.Many2One('account.fiscalyear', 'Fiscal Year',
+            required=True)
+    posted = fields.Boolean('Posted Move', help='Only posted move')
+
+
+    def default_fiscalyear(self, cursor, user, context=None):
+        fiscalyear_obj = self.pool.get('account.fiscalyear')
+        if context is None:
+            context = {}
+        fiscalyear_id = fiscalyear_obj.find(cursor, user,
+                context.get('company', False), exception=False, context=context)
+        if fiscalyear_id:
+            return fiscalyear_obj.name_get(cursor, user, fiscalyear_id,
+                    context=context)[0]
+        return False
+
+    def default_posted(self, cursor, user, context=None):
+        return False
+
+    def default_company(self, cursor, user, context=None):
+        if context is None:
+            context = {}
+        company_obj = self.pool.get('company.company')
+        if context.get('company'):
+            return company_obj.name_get(cursor, user, context['company'],
+                    context=context)[0]
+        return False
+
+OpenThirdPartyBalanceInit()
+
+
+class OpenThirdPartyBalance(Wizard):
+    'Open Third Party Balance'
+    _name = 'account.account.open_third_party_balance'
+    states = {
+        'init': {
+            'result': {
+                'type': 'form',
+                'object': 'account.account.open_third_party_balance.init',
+                'state': [
+                    ('end', 'Cancel', 'tryton-cancel'),
+                    ('print', 'Print', 'tryton-ok', True),
+                ],
+            },
+        },
+        'print': {
+            'result': {
+                'type': 'print',
+                'report': 'account.account.third_party_balance',
+                'state': 'end',
+            },
+        },
+    }
+
+OpenThirdPartyBalance()
+
+
+class ThirdPartyBalance(Report):
+    _name = 'account.account.third_party_balance'
+
+    def _get_objects(self, cursor, user, ids, model, datas, context):
+        party_obj = self.pool.get('relationship.party')
+        move_line_obj = self.pool.get('account.move.line')
+        company_obj = self.pool.get('company.company')
+        company = company_obj.browse(cursor, user,
+                datas['form']['company'], context=context)
+        context['company'] = company
+        context['digits'] = company.currency.digits
+        context['fiscalyear'] = datas['form']['fiscalyear']
+        line_query = move_line_obj.query_get(cursor, user, context=context)
+        if datas['form']['posted']:
+            posted_clause = "and m.state = 'posted' "
+        else:
+            posted_clause = ""
+
+        cursor.execute('SELECT l.party, SUM(l.debit), SUM(l.credit) ' \
+                       'FROM account_move_line l ' \
+                         'JOIN account_move m on (l.move = m.id) '
+                         'JOIN account_account a on (l.account = a.id) '
+                       'WHERE l.party is not null '\
+                         'AND a.active ' \
+                         'AND a.kind in (\'payable\',\'receivable\') ' \
+                         'AND l.reconciliation IS NULL ' \
+                         'AND a.company = %s ' \
+                         'AND (l.maturity_date <= %s ' \
+                               'OR l.maturity_date IS NULL) '\
+                         'AND ' + line_query + ' ' \
+                         + posted_clause + \
+                       'GROUP BY l.party',
+                       (datas['form']['company'],datetime.date.today()))
+
+        res = cursor.fetchall()
+        party_name = dict(party_obj.name_get(
+                cursor, user, [x[0] for x in res],
+                context=context))
+        objects = [{'name': party_name[x[0]],
+                 'debit': x[1],
+                 'credit': x[2],
+                 'solde': x[1]-x[2]} for x in res]
+        objects.sort(lambda x,y: cmp(x['name'],y['name']))
+        context['total_debit'] = sum((o['debit'] for o in objects))
+        context['total_credit'] = sum((o['credit'] for o in objects))
+        context['total_solde'] = sum((o['solde'] for o in objects))
+        return objects
+
+ThirdPartyBalance()
diff --git a/account.xml b/account.xml
index 6c29cada9c..282083f413 100644
--- a/account.xml
+++ b/account.xml
@@ -683,5 +683,35 @@
             id="menu_open_income_statement" icon="tryton-tree"
             name="Income Statement"/>
 
+        <record model="ir.ui.view" id="open_third_party_balance_init_view_form">
+            <field name="model">account.account.open_third_party_balance.init</field>
+            <field name="type">form</field>
+            <field name="arch" type="xml">
+                <![CDATA[
+                <form string="Open Third Party Balance" col="2">
+                    <label name="company"/>
+                    <field name="company"/>
+                    <label name="fiscalyear"/>
+                    <field name="fiscalyear"/>
+                    <label name="posted"/>
+                    <field name="posted"/>
+                </form>
+                ]]>
+            </field>
+        </record>
+        <record model="ir.action.report" id="report_third_party_balance">
+            <field name="name">Third Party Balance</field>
+            <field name="model">relationship.partner</field>
+            <field name="report_name">account.account.third_party_balance</field>
+            <field name="report">account/third_party_balance.odt</field>
+        </record>
+        <record model="ir.action.wizard" id="wizard_open_third_party_balance">
+            <field name="name">Open Third Party Balance</field>
+            <field name="wiz_name">account.account.open_third_party_balance</field>
+        </record>
+        <menuitem parent="menu_reporting" action="wizard_open_third_party_balance"
+            id="menu_third_party_balance" icon="tryton-print"
+            name="Third Party Balance"/>
+
     </data>
 </tryton>
diff --git a/move.py b/move.py
index bdc55d45b2..b5d45c6d4b 100644
--- a/move.py
+++ b/move.py
@@ -364,7 +364,7 @@ class Line(OSV):
             help='The second currency')
     party = fields.Many2One('relationship.party', 'Party',
             on_change=['move', 'party', 'account', 'debit', 'credit',
-                'journal'])
+                'journal'], select=True)
     blocked = fields.Boolean('Litigation',
             help='Mark the line as litigation with the party.')
     maturity_date = fields.Date('Maturity Date',
diff --git a/third_party_balance.odt b/third_party_balance.odt
new file mode 100644
index 0000000000..865370f036
Binary files /dev/null and b/third_party_balance.odt differ