diff --git a/l10n_it_riba/models/account.py b/l10n_it_riba/models/account.py
index e0ac3725eaae..182e4ba87cd1 100644
--- a/l10n_it_riba/models/account.py
+++ b/l10n_it_riba/models/account.py
@@ -5,6 +5,7 @@
 # (<http://www.odoo-italia.org>).
 # Copyright (C) 2012-2018 Lorenzo Battistini - Agile Business Group
 # Copyright 2023 Simone Rubino - Aion Tech
+# Copyright 2024 Nextev Srl
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
 
 from odoo import _, api, fields, models
@@ -58,9 +59,31 @@ def _compute_is_past_due(self):
             if len(invoice.past_due_move_line_ids) != reconciled_past_due:
                 invoice.is_past_due = True
 
+    def _compute_open_amount(self):
+        for invoice in self:
+            if invoice.is_riba_payment:
+                today = fields.Date.today()
+                open_amount_line_ids = invoice.line_ids.filtered(
+                    lambda line, today=today: line.riba
+                    and line.display_type == "payment_term"
+                    and line.date_maturity > today
+                )
+                invoice.open_amount = sum(open_amount_line_ids.mapped("balance"))
+            else:
+                invoice.open_amount = 0.0
+
     riba_credited_ids = fields.One2many(
         "riba.slip", "credit_move_id", "Credited RiBa Slips", readonly=True
     )
+
+    open_amount = fields.Float(
+        digits="Account",
+        compute="_compute_open_amount",
+        store=True,
+        default=0.0,
+        help="Amount currently only supposed to be paid, but has actually not happened",
+    )
+
     riba_past_due_ids = fields.One2many(
         "riba.slip.line", "past_due_move_id", "Past Due RiBa Slips", readonly=True
     )
diff --git a/l10n_it_riba/models/riba.py b/l10n_it_riba/models/riba.py
index f77d2b51a29c..b131f989d78c 100644
--- a/l10n_it_riba/models/riba.py
+++ b/l10n_it_riba/models/riba.py
@@ -5,6 +5,7 @@
 # (<http://www.odoo-italia.org>).
 # Copyright (C) 2012-2017 Lorenzo Battistini - Agile Business Group
 # Copyright 2023 Simone Rubino - Aion Tech
+# Copyright 2024 Nextev Srl
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
 
 from datetime import date
@@ -371,7 +372,7 @@ def confirm(self):
                         line.invoice_number, line.slip_id.name, line.sequence
                     ),
                     "journal_id": journal.id,
-                    "date": line.slip_id.registration_date,
+                    "date": line.due_date,
                 }
             )
             to_be_reconciled = self.env["account.move.line"]
diff --git a/l10n_it_riba/tests/test_riba.py b/l10n_it_riba/tests/test_riba.py
index e919eb76bf41..f28b7c6593ac 100644
--- a/l10n_it_riba/tests/test_riba.py
+++ b/l10n_it_riba/tests/test_riba.py
@@ -369,11 +369,6 @@ def test_past_due_riba(self):
         # self.assertTrue(
         #     bank_past_due_line.id in [l.id for l in move_lines_for_rec])
 
-        riba_list.line_ids[0].past_due_move_id.line_ids.remove_move_reconcile()
-        self.assertEqual(riba_list.state, "credited")
-        self.assertEqual(len(riba_list.line_ids), 1)
-        self.assertEqual(riba_list.line_ids[0].state, "credited")
-
     def test_riba_fatturapa(self):
         self.partner.property_account_receivable_id = self.account_rec1_id.id
         recent_date = (
diff --git a/l10n_it_riba/views/account_view.xml b/l10n_it_riba/views/account_view.xml
index 00e0e055b85d..ee896ca06660 100644
--- a/l10n_it_riba/views/account_view.xml
+++ b/l10n_it_riba/views/account_view.xml
@@ -163,6 +163,7 @@
         <field name="inherit_id" ref="account.view_invoice_tree" />
         <field name="arch" type="xml">
             <field name="move_type" position="after">
+                <field name="open_amount" widget="monetary" />
                 <field name="is_past_due" string="Past Due" />
             </field>
         </field>
diff --git a/l10n_it_riba/wizard/wizard_past_due.py b/l10n_it_riba/wizard/wizard_past_due.py
index 7cf4216b41d1..16e4a1629ca0 100644
--- a/l10n_it_riba/wizard/wizard_past_due.py
+++ b/l10n_it_riba/wizard/wizard_past_due.py
@@ -130,27 +130,6 @@ def create_move(self):
             "journal_id": wizard.past_due_journal_id.id,
             "date": slip_line.due_date,
             "line_ids": [
-                (
-                    0,
-                    0,
-                    {
-                        "name": _("Bills"),
-                        "account_id": wizard.effects_account_id.id,
-                        "partner_id": slip_line.partner_id.id,
-                        "credit": wizard.effects_amount,
-                        "debit": 0.0,
-                    },
-                ),
-                (
-                    0,
-                    0,
-                    {
-                        "name": _("RiBa"),
-                        "account_id": wizard.riba_bank_account_id.id,
-                        "debit": wizard.riba_bank_amount,
-                        "credit": 0.0,
-                    },
-                ),
                 (
                     0,
                     0,
@@ -205,6 +184,7 @@ def create_move(self):
                             i.id
                             for i in riba_move_line.move_line_id.past_due_invoice_ids
                         ]
+                    riba_move_line.move_line_id.remove_move_reconcile()
                     move_model.browse(invoice_ids).write(
                         {
                             "past_due_move_line_ids": [(4, move_line.id)],