diff --git a/l10n_ch_pain_base/README.rst b/l10n_ch_pain_base/README.rst
new file mode 100644
index 000000000..410553909
--- /dev/null
+++ b/l10n_ch_pain_base/README.rst
@@ -0,0 +1,82 @@
+=======================
+Switzerland - ISO 20022
+=======================
+
+.. 
+   !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+   !! This file is generated by oca-gen-addon-readme !!
+   !! changes will be overwritten.                   !!
+   !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+   !! source digest: sha256:c1dafe4028d1fbcf7e53729c3b4b2a8ff8ef21aa9fb9558640b991a44bc6fbfa
+   !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+.. |badge1| image:: https://img.shields.io/badge/maturity-Beta-yellow.png
+    :target: https://odoo-community.org/page/development-status
+    :alt: Beta
+.. |badge2| image:: https://img.shields.io/badge/licence-AGPL--3-blue.png
+    :target: http://www.gnu.org/licenses/agpl-3.0-standalone.html
+    :alt: License: AGPL-3
+.. |badge3| image:: https://img.shields.io/badge/github-OCA%2Fl10n--switzerland-lightgray.png?logo=github
+    :target: https://github.com/OCA/l10n-switzerland/tree/14.0/l10n_ch_pain_base
+    :alt: OCA/l10n-switzerland
+.. |badge4| image:: https://img.shields.io/badge/weblate-Translate%20me-F47D42.png
+    :target: https://translation.odoo-community.org/projects/l10n-switzerland-14-0/l10n-switzerland-14-0-l10n_ch_pain_base
+    :alt: Translate me on Weblate
+.. |badge5| image:: https://img.shields.io/badge/runboat-Try%20me-875A7B.png
+    :target: https://runboat.odoo-community.org/builds?repo=OCA/l10n-switzerland&target_branch=14.0
+    :alt: Try me on Runboat
+
+|badge1| |badge2| |badge3| |badge4| |badge5|
+
+This module doesn't do anything by himself. It is the base module for 2 other modules:
+
+* the module *l10n_ch_pain_credit_transfer* which adds support for the file format *pain.001.001.03.ch.02* which is used for ISO 20022 credit transfers (SEPA or not SEPA),
+* the module *l10n_ch_pain_direct_debit* which adds support for the file format *pain.008.001.02.ch.01* which is used for ISO 20022 direct debits.
+
+**Table of contents**
+
+.. contents::
+   :local:
+
+Bug Tracker
+===========
+
+Bugs are tracked on `GitHub Issues <https://github.com/OCA/l10n-switzerland/issues>`_.
+In case of trouble, please check there if your issue has already been reported.
+If you spotted it first, help us to smash it by providing a detailed and welcomed
+`feedback <https://github.com/OCA/l10n-switzerland/issues/new?body=module:%20l10n_ch_pain_base%0Aversion:%2014.0%0A%0A**Steps%20to%20reproduce**%0A-%20...%0A%0A**Current%20behavior**%0A%0A**Expected%20behavior**>`_.
+
+Do not contact contributors directly about support or help with technical issues.
+
+Credits
+=======
+
+Authors
+~~~~~~~
+
+* Akretion
+* Camptocamp
+
+Contributors
+~~~~~~~~~~~~
+
+* Alexis de Lattre <alexis.delattre@akretion.com>
+* Denis Leemann <denis.leemann@camptocamp.com>
+* Mykhailo Panarin <m.panarin@mobilunity.com>
+
+Maintainers
+~~~~~~~~~~~
+
+This module is maintained by the OCA.
+
+.. image:: https://odoo-community.org/logo.png
+   :alt: Odoo Community Association
+   :target: https://odoo-community.org
+
+OCA, or the Odoo Community Association, is a nonprofit organization whose
+mission is to support the collaborative development of Odoo features and
+promote its widespread use.
+
+This module is part of the `OCA/l10n-switzerland <https://github.com/OCA/l10n-switzerland/tree/14.0/l10n_ch_pain_base>`_ project on GitHub.
+
+You are welcome to contribute. To learn how please visit https://odoo-community.org/page/Contribute.
diff --git a/l10n_ch_pain_base/__init__.py b/l10n_ch_pain_base/__init__.py
new file mode 100644
index 000000000..0650744f6
--- /dev/null
+++ b/l10n_ch_pain_base/__init__.py
@@ -0,0 +1 @@
+from . import models
diff --git a/l10n_ch_pain_base/__manifest__.py b/l10n_ch_pain_base/__manifest__.py
new file mode 100644
index 000000000..47735df3a
--- /dev/null
+++ b/l10n_ch_pain_base/__manifest__.py
@@ -0,0 +1,16 @@
+# copyright 2016 Akretion (Alexis de Lattre <alexis.delattre@akretion.com>)
+# copyright 2011 Camptocamp SA (Yannick Vaucher)
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+{
+    "name": "Switzerland - ISO 20022",
+    "summary": "ISO 20022 base module for Switzerland",
+    "version": "16.0.1.0.0",
+    "category": "Finance",
+    "website": "https://github.com/OCA/l10n-switzerland",
+    "author": "Akretion,Camptocamp,Odoo Community Association (OCA)",
+    "license": "AGPL-3",
+    "depends": ["account_banking_pain_base"],
+    "data": ["views/account_payment_line.xml"],
+    "installable": True,
+}
diff --git a/l10n_ch_pain_base/i18n/de.po b/l10n_ch_pain_base/i18n/de.po
new file mode 100644
index 000000000..56c16a821
--- /dev/null
+++ b/l10n_ch_pain_base/i18n/de.po
@@ -0,0 +1,91 @@
+# Translation of Odoo Server.
+# This file contains the translation of the following modules:
+# * l10n_ch_pain_base
+#
+# Translators:
+# OCA Transbot <transbot@odoo-community.org>, 2017
+msgid ""
+msgstr ""
+"Project-Id-Version: Odoo Server 10.0\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2017-04-19 00:40+0000\n"
+"PO-Revision-Date: 2018-11-23 22:11+0000\n"
+"Last-Translator: chrispi-ch <chris@okc.ch>\n"
+"Language-Team: German (https://www.transifex.com/oca/teams/23907/de/)\n"
+"Language: de\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: \n"
+"Plural-Forms: nplurals=2; plural=n != 1;\n"
+"X-Generator: Weblate 3.2.2\n"
+
+#. module: l10n_ch_pain_base
+#: selection:account.payment.line,local_instrument:0
+msgid "CH01 (ISR)"
+msgstr ""
+
+#. module: l10n_ch_pain_base
+#: model:ir.model.fields,field_description:l10n_ch_pain_base.field_account_payment_line__communication_type
+msgid "Communication Type"
+msgstr ""
+
+#. module: l10n_ch_pain_base
+#: code:addons/l10n_ch_pain_base/models/account_payment_order.py:72
+#, python-format
+msgid ""
+"For pain.001.001.03.ch.02, for non-ISR payments, the BIC is required on the "
+"bank '%s' related to the bank account '%s'"
+msgstr ""
+"Bei pain.001.001.03.ch.02 ist für Nicht-ESR-Zahlungen der BIC zur Bank '%s' "
+"des Bankkontos '%s' erforderlich"
+
+#. module: l10n_ch_pain_base
+#: selection:account.payment.line,communication_type:0
+msgid "Free"
+msgstr ""
+
+#. module: l10n_ch_pain_base
+#: selection:account.payment.line,communication_type:0
+msgid "ISO"
+msgstr ""
+
+#. module: l10n_ch_pain_base
+#: selection:account.payment.line,communication_type:0
+msgid "ISR"
+msgstr ""
+
+#. module: l10n_ch_pain_base
+#: selection:account.payment.line,local_instrument:0
+msgid "Instant Transfer"
+msgstr ""
+
+#. module: l10n_ch_pain_base
+#: model:ir.model,name:l10n_ch_pain_base.model_account_move_line
+msgid "Journal Item"
+msgstr "Journaleintrag"
+
+#. module: l10n_ch_pain_base
+#: model:ir.model.fields,field_description:l10n_ch_pain_base.field_account_payment_line__local_instrument
+msgid "Local Instrument"
+msgstr ""
+
+#. module: l10n_ch_pain_base
+#: model:ir.model,name:l10n_ch_pain_base.model_account_payment_line
+msgid "Payment Lines"
+msgstr "Zahlungszeilen"
+
+#. module: l10n_ch_pain_base
+#: model:ir.model,name:l10n_ch_pain_base.model_account_payment_order
+msgid "Payment Order"
+msgstr "Zahlungsauftrag"
+
+#. module: l10n_ch_pain_base
+#: selection:account.payment.line,communication_type:0
+msgid "QRR"
+msgstr ""
+
+#. module: l10n_ch_pain_base
+#: code:addons/l10n_ch_pain_base/models/account_payment_order.py:90
+#, fuzzy, python-format
+msgid "The field 'Postal account' is not set on the bank account '%s'."
+msgstr "Das Feld 'Postkonto' ist beim Bankkonto '%s' nicht gesetzt."
diff --git a/l10n_ch_pain_base/i18n/fr.po b/l10n_ch_pain_base/i18n/fr.po
new file mode 100644
index 000000000..e8bea309f
--- /dev/null
+++ b/l10n_ch_pain_base/i18n/fr.po
@@ -0,0 +1,92 @@
+# Translation of Odoo Server.
+# This file contains the translation of the following modules:
+# * l10n_ch_pain_base
+#
+# Translators:
+# leemannd <denis.leemann@camptocamp.com>, 2017
+# OCA Transbot <transbot@odoo-community.org>, 2017
+msgid ""
+msgstr ""
+"Project-Id-Version: Odoo Server 10.0\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2017-12-01 03:54+0000\n"
+"PO-Revision-Date: 2019-08-14 09:44+0000\n"
+"Last-Translator: Valaeys Stéphane <svalaeys@fiefmanage.ch>\n"
+"Language-Team: French (https://www.transifex.com/oca/teams/23907/fr/)\n"
+"Language: fr\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: \n"
+"Plural-Forms: nplurals=2; plural=n > 1;\n"
+"X-Generator: Weblate 3.7.1\n"
+
+#. module: l10n_ch_pain_base
+#: selection:account.payment.line,local_instrument:0
+msgid "CH01 (ISR)"
+msgstr ""
+
+#. module: l10n_ch_pain_base
+#: model:ir.model.fields,field_description:l10n_ch_pain_base.field_account_payment_line__communication_type
+msgid "Communication Type"
+msgstr ""
+
+#. module: l10n_ch_pain_base
+#: code:addons/l10n_ch_pain_base/models/account_payment_order.py:72
+#, python-format
+msgid ""
+"For pain.001.001.03.ch.02, for non-ISR payments, the BIC is required on the "
+"bank '%s' related to the bank account '%s'"
+msgstr ""
+"Pour pain.001.001.03.ch.02 et les paiements non-BVR,  le BIC est requis sur "
+"les Banques '%s' lié au compte bancaire '%s'"
+
+#. module: l10n_ch_pain_base
+#: selection:account.payment.line,communication_type:0
+msgid "Free"
+msgstr ""
+
+#. module: l10n_ch_pain_base
+#: selection:account.payment.line,communication_type:0
+msgid "ISO"
+msgstr ""
+
+#. module: l10n_ch_pain_base
+#: selection:account.payment.line,communication_type:0
+msgid "ISR"
+msgstr ""
+
+#. module: l10n_ch_pain_base
+#: selection:account.payment.line,local_instrument:0
+msgid "Instant Transfer"
+msgstr ""
+
+#. module: l10n_ch_pain_base
+#: model:ir.model,name:l10n_ch_pain_base.model_account_move_line
+msgid "Journal Item"
+msgstr "Écriture comptable"
+
+#. module: l10n_ch_pain_base
+#: model:ir.model.fields,field_description:l10n_ch_pain_base.field_account_payment_line__local_instrument
+msgid "Local Instrument"
+msgstr ""
+
+#. module: l10n_ch_pain_base
+#: model:ir.model,name:l10n_ch_pain_base.model_account_payment_line
+msgid "Payment Lines"
+msgstr "Lignes de Paiement"
+
+#. module: l10n_ch_pain_base
+#: model:ir.model,name:l10n_ch_pain_base.model_account_payment_order
+msgid "Payment Order"
+msgstr "Ordre de paiement"
+
+#. module: l10n_ch_pain_base
+#: selection:account.payment.line,communication_type:0
+msgid "QRR"
+msgstr ""
+
+#. module: l10n_ch_pain_base
+#: code:addons/l10n_ch_pain_base/models/account_payment_order.py:90
+#, fuzzy, python-format
+msgid "The field 'Postal account' is not set on the bank account '%s'."
+msgstr "Le champ 'CCP' n'est pas défini sur le compte bancaire '%s'."
diff --git a/l10n_ch_pain_base/i18n/it.po b/l10n_ch_pain_base/i18n/it.po
new file mode 100644
index 000000000..58c49c548
--- /dev/null
+++ b/l10n_ch_pain_base/i18n/it.po
@@ -0,0 +1,89 @@
+# Translation of Odoo Server.
+# This file contains the translation of the following modules:
+# * l10n_ch_pain_base
+#
+# Translators:
+# OCA Transbot <transbot@odoo-community.org>, 2017
+msgid ""
+msgstr ""
+"Project-Id-Version: Odoo Server 10.0\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2017-03-03 03:39+0000\n"
+"PO-Revision-Date: 2024-02-23 14:37+0000\n"
+"Last-Translator: mymage <stefano.consolaro@mymage.it>\n"
+"Language-Team: Italian (https://www.transifex.com/oca/teams/23907/it/)\n"
+"Language: it\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: \n"
+"Plural-Forms: nplurals=2; plural=n != 1;\n"
+"X-Generator: Weblate 4.17\n"
+
+#. module: l10n_ch_pain_base
+#: selection:account.payment.line,local_instrument:0
+msgid "CH01 (ISR)"
+msgstr ""
+
+#. module: l10n_ch_pain_base
+#: model:ir.model.fields,field_description:l10n_ch_pain_base.field_account_payment_line__communication_type
+msgid "Communication Type"
+msgstr ""
+
+#. module: l10n_ch_pain_base
+#: code:addons/l10n_ch_pain_base/models/account_payment_order.py:72
+#, python-format
+msgid ""
+"For pain.001.001.03.ch.02, for non-ISR payments, the BIC is required on the "
+"bank '%s' related to the bank account '%s'"
+msgstr ""
+
+#. module: l10n_ch_pain_base
+#: selection:account.payment.line,communication_type:0
+msgid "Free"
+msgstr ""
+
+#. module: l10n_ch_pain_base
+#: selection:account.payment.line,communication_type:0
+msgid "ISO"
+msgstr ""
+
+#. module: l10n_ch_pain_base
+#: selection:account.payment.line,communication_type:0
+msgid "ISR"
+msgstr ""
+
+#. module: l10n_ch_pain_base
+#: selection:account.payment.line,local_instrument:0
+msgid "Instant Transfer"
+msgstr ""
+
+#. module: l10n_ch_pain_base
+#: model:ir.model,name:l10n_ch_pain_base.model_account_move_line
+msgid "Journal Item"
+msgstr ""
+
+#. module: l10n_ch_pain_base
+#: model:ir.model.fields,field_description:l10n_ch_pain_base.field_account_payment_line__local_instrument
+msgid "Local Instrument"
+msgstr ""
+
+#. module: l10n_ch_pain_base
+#: model:ir.model,name:l10n_ch_pain_base.model_account_payment_line
+msgid "Payment Lines"
+msgstr ""
+
+#. module: l10n_ch_pain_base
+#: model:ir.model,name:l10n_ch_pain_base.model_account_payment_order
+msgid "Payment Order"
+msgstr "Ordine di pagamento"
+
+#. module: l10n_ch_pain_base
+#: selection:account.payment.line,communication_type:0
+msgid "QRR"
+msgstr ""
+
+#. module: l10n_ch_pain_base
+#: code:addons/l10n_ch_pain_base/models/account_payment_order.py:90
+#, python-format
+msgid "The field 'Postal account' is not set on the bank account '%s'."
+msgstr ""
diff --git a/l10n_ch_pain_base/i18n/l10n_ch_pain_base.pot b/l10n_ch_pain_base/i18n/l10n_ch_pain_base.pot
new file mode 100644
index 000000000..1fc54839f
--- /dev/null
+++ b/l10n_ch_pain_base/i18n/l10n_ch_pain_base.pot
@@ -0,0 +1,89 @@
+# Translation of Odoo Server.
+# This file contains the translation of the following modules:
+# 	* l10n_ch_pain_base
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Odoo Server 14.0\n"
+"Report-Msgid-Bugs-To: \n"
+"Last-Translator: \n"
+"Language-Team: \n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: \n"
+"Plural-Forms: \n"
+
+#. module: l10n_ch_pain_base
+#: model:ir.model.fields.selection,name:l10n_ch_pain_base.selection__account_payment_line__local_instrument__ch01
+msgid "CH01 (ISR)"
+msgstr ""
+
+#. module: l10n_ch_pain_base
+#: model:ir.model.fields,field_description:l10n_ch_pain_base.field_account_payment_line__communication_type
+msgid "Communication Type"
+msgstr ""
+
+#. module: l10n_ch_pain_base
+#: model:ir.model.fields,field_description:l10n_ch_pain_base.field_account_move_line__display_name
+#: model:ir.model.fields,field_description:l10n_ch_pain_base.field_account_payment_line__display_name
+#: model:ir.model.fields,field_description:l10n_ch_pain_base.field_account_payment_order__display_name
+msgid "Display Name"
+msgstr ""
+
+#. module: l10n_ch_pain_base
+#: code:addons/l10n_ch_pain_base/models/account_payment_order.py:0
+#, python-format
+msgid ""
+"For pain.001.001.03.ch.02, for non-ISR payments, the BIC is required on the "
+"bank '%s' related to the bank account '%s'"
+msgstr ""
+
+#. module: l10n_ch_pain_base
+#: model:ir.model.fields,field_description:l10n_ch_pain_base.field_account_move_line__id
+#: model:ir.model.fields,field_description:l10n_ch_pain_base.field_account_payment_line__id
+#: model:ir.model.fields,field_description:l10n_ch_pain_base.field_account_payment_order__id
+msgid "ID"
+msgstr ""
+
+#. module: l10n_ch_pain_base
+#: model:ir.model.fields.selection,name:l10n_ch_pain_base.selection__account_payment_line__communication_type__isr
+msgid "ISR"
+msgstr ""
+
+#. module: l10n_ch_pain_base
+#: model:ir.model,name:l10n_ch_pain_base.model_account_move_line
+msgid "Journal Item"
+msgstr ""
+
+#. module: l10n_ch_pain_base
+#: model:ir.model.fields,field_description:l10n_ch_pain_base.field_account_move_line____last_update
+#: model:ir.model.fields,field_description:l10n_ch_pain_base.field_account_payment_line____last_update
+#: model:ir.model.fields,field_description:l10n_ch_pain_base.field_account_payment_order____last_update
+msgid "Last Modified on"
+msgstr ""
+
+#. module: l10n_ch_pain_base
+#: model:ir.model.fields,field_description:l10n_ch_pain_base.field_account_payment_line__local_instrument
+msgid "Local Instrument"
+msgstr ""
+
+#. module: l10n_ch_pain_base
+#: model:ir.model,name:l10n_ch_pain_base.model_account_payment_line
+msgid "Payment Lines"
+msgstr ""
+
+#. module: l10n_ch_pain_base
+#: model:ir.model,name:l10n_ch_pain_base.model_account_payment_order
+msgid "Payment Order"
+msgstr ""
+
+#. module: l10n_ch_pain_base
+#: model:ir.model.fields.selection,name:l10n_ch_pain_base.selection__account_payment_line__communication_type__qrr
+msgid "QRR"
+msgstr ""
+
+#. module: l10n_ch_pain_base
+#: code:addons/l10n_ch_pain_base/models/account_payment_order.py:0
+#, python-format
+msgid "The field 'Postal account' is not set on the bank account '%s'."
+msgstr ""
diff --git a/l10n_ch_pain_base/models/__init__.py b/l10n_ch_pain_base/models/__init__.py
new file mode 100644
index 000000000..065d5b2d3
--- /dev/null
+++ b/l10n_ch_pain_base/models/__init__.py
@@ -0,0 +1,3 @@
+from . import account_payment_order
+from . import account_payment_line
+from . import account_move_line
diff --git a/l10n_ch_pain_base/models/account_move_line.py b/l10n_ch_pain_base/models/account_move_line.py
new file mode 100644
index 000000000..bcf642b65
--- /dev/null
+++ b/l10n_ch_pain_base/models/account_move_line.py
@@ -0,0 +1,19 @@
+# copyright 2016 Akretion (Alexis de Lattre <alexis.delattre@akretion.com>)
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+
+from odoo import models
+
+
+class AccountMoveLine(models.Model):
+    _inherit = "account.move.line"
+
+    def _prepare_payment_line_vals(self, payment_order):
+        vals = super()._prepare_payment_line_vals(payment_order)
+        if (
+            self.move_id
+            and self.move_id._has_isr_ref()
+            and self.move_id.partner_bank_id
+        ):
+            vals["communication_type"] = "qrr"
+            vals["communication"] = self.move_id.payment_reference.replace(" ", "")
+        return vals
diff --git a/l10n_ch_pain_base/models/account_payment_line.py b/l10n_ch_pain_base/models/account_payment_line.py
new file mode 100644
index 000000000..5132254c0
--- /dev/null
+++ b/l10n_ch_pain_base/models/account_payment_line.py
@@ -0,0 +1,13 @@
+# copyright 2016 Akretion - Alexis de Lattre <alexis.delattre@akretion.com>
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+
+from odoo import fields, models
+
+
+class AccountPaymentLine(models.Model):
+    _inherit = "account.payment.line"
+
+    communication_type = fields.Selection(
+        selection_add=[("qrr", "QRR")],
+        ondelete={ "qrr": "set default"},
+    )
diff --git a/l10n_ch_pain_base/models/account_payment_order.py b/l10n_ch_pain_base/models/account_payment_order.py
new file mode 100644
index 000000000..064b83681
--- /dev/null
+++ b/l10n_ch_pain_base/models/account_payment_order.py
@@ -0,0 +1,70 @@
+# copyright 2016 Akretion (www.akretion.com)
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+
+from lxml import etree
+
+from odoo import _, api, models
+from odoo.exceptions import UserError
+
+ACCEPTED_PAIN_FLAVOURS = ("pain.001.001.03.ch.02", "pain.008.001.02.ch.03")
+
+class AccountPaymentOrder(models.Model):
+    _inherit = "account.payment.order"
+
+    def compute_sepa_final_hook(self, sepa):
+        self.ensure_one()
+        sepa = super().compute_sepa_final_hook(sepa)
+        pain_flavor = self.payment_mode_id.payment_method_id.pain_version
+        # ISR orders cannot be SEPA orders
+        if pain_flavor and ".ch." in pain_flavor:
+            sepa = False
+        return sepa
+
+    def generate_pain_nsmap(self):
+        self.ensure_one()
+        nsmap = super().generate_pain_nsmap()
+        pain_flavor = self.payment_mode_id.payment_method_id.pain_version
+        if pain_flavor in ACCEPTED_PAIN_FLAVOURS:
+            nsmap[None] = (
+                "http://www.six-interbank-clearing.com/de/%s.xsd" % pain_flavor
+            )
+
+        return nsmap
+
+    def generate_pain_attrib(self):
+        self.ensure_one()
+        pain_flavor = self.payment_mode_id.payment_method_id.pain_version
+        if pain_flavor in ACCEPTED_PAIN_FLAVOURS:
+            attrib = {
+            "{http://www.w3.org/2001/XMLSchema-instance}"
+            "schemaLocation": "http://www.six-interbank-clearing.com/de/%s.xsd  %s.xsd"
+                              % (pain_flavor, pain_flavor)
+            }
+            return attrib
+        else:
+            return super().generate_pain_attrib()
+
+
+    @api.model
+    def generate_remittance_info_block(self, parent_node, line, gen_args):
+        if line.payment_line_ids[:1].communication_type == "qrr":
+            remittance_info = etree.SubElement(parent_node, "RmtInf")
+            remittance_info_structured = etree.SubElement(remittance_info, "Strd")
+            creditor_ref_information = etree.SubElement(
+                remittance_info_structured, "CdtrRefInf"
+            )
+            creditor_ref_info_type = etree.SubElement(creditor_ref_information, "Tp")
+            creditor_ref_info_type_or = etree.SubElement(
+                creditor_ref_info_type, "CdOrPrtry"
+            )
+            creditor_ref_info_type_code = etree.SubElement(
+                creditor_ref_info_type_or, "Prtry"
+            )
+            creditor_ref_info_type_code.text = "QRR"
+            creditor_reference = etree.SubElement(creditor_ref_information, "Ref")
+            creditor_reference.text = line.payment_line_ids[0].communication
+            # to uncomment when schema pain.001.001.09.ch.03 is implemented in account_banking_pain_base
+            # remittance_info_structured = etree.SubElement(remittance_info, "AddtlRmtInf")
+            # remittance_info_structured.text = line.payment_line_ids[0].move_line_id.move_id.ref or ""
+        else:
+            super().generate_remittance_info_block(parent_node, line, gen_args)
diff --git a/l10n_ch_pain_base/readme/CONTRIBUTORS.rst b/l10n_ch_pain_base/readme/CONTRIBUTORS.rst
new file mode 100644
index 000000000..4f35f64a5
--- /dev/null
+++ b/l10n_ch_pain_base/readme/CONTRIBUTORS.rst
@@ -0,0 +1,3 @@
+* Alexis de Lattre <alexis.delattre@akretion.com>
+* Denis Leemann <denis.leemann@camptocamp.com>
+* Mykhailo Panarin <m.panarin@mobilunity.com>
diff --git a/l10n_ch_pain_base/readme/DESCRIPTION.rst b/l10n_ch_pain_base/readme/DESCRIPTION.rst
new file mode 100644
index 000000000..be01b0c7c
--- /dev/null
+++ b/l10n_ch_pain_base/readme/DESCRIPTION.rst
@@ -0,0 +1,4 @@
+This module doesn't do anything by himself. It is the base module for 2 other modules:
+
+* the module *l10n_ch_pain_credit_transfer* which adds support for the file format *pain.001.001.03.ch.02* which is used for ISO 20022 credit transfers (SEPA or not SEPA),
+* the module *l10n_ch_pain_direct_debit* which adds support for the file format *pain.008.001.02.ch.01* which is used for ISO 20022 direct debits.
diff --git a/l10n_ch_pain_base/static/description/icon.png b/l10n_ch_pain_base/static/description/icon.png
new file mode 100644
index 000000000..3a0328b51
Binary files /dev/null and b/l10n_ch_pain_base/static/description/icon.png differ
diff --git a/l10n_ch_pain_base/static/description/index.html b/l10n_ch_pain_base/static/description/index.html
new file mode 100644
index 000000000..5ba18d282
--- /dev/null
+++ b/l10n_ch_pain_base/static/description/index.html
@@ -0,0 +1,428 @@
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+<body>
+<div class="document" id="switzerland-iso-20022">
+<h1 class="title">Switzerland - ISO 20022</h1>
+
+<!-- !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+!! This file is generated by oca-gen-addon-readme !!
+!! changes will be overwritten.                   !!
+!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+!! source digest: sha256:c1dafe4028d1fbcf7e53729c3b4b2a8ff8ef21aa9fb9558640b991a44bc6fbfa
+!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -->
+<p><a class="reference external image-reference" href="https://odoo-community.org/page/development-status"><img alt="Beta" src="https://img.shields.io/badge/maturity-Beta-yellow.png" /></a> <a class="reference external image-reference" href="http://www.gnu.org/licenses/agpl-3.0-standalone.html"><img alt="License: AGPL-3" src="https://img.shields.io/badge/licence-AGPL--3-blue.png" /></a> <a class="reference external image-reference" href="https://github.com/OCA/l10n-switzerland/tree/14.0/l10n_ch_pain_base"><img alt="OCA/l10n-switzerland" src="https://img.shields.io/badge/github-OCA%2Fl10n--switzerland-lightgray.png?logo=github" /></a> <a class="reference external image-reference" href="https://translation.odoo-community.org/projects/l10n-switzerland-14-0/l10n-switzerland-14-0-l10n_ch_pain_base"><img alt="Translate me on Weblate" src="https://img.shields.io/badge/weblate-Translate%20me-F47D42.png" /></a> <a class="reference external image-reference" href="https://runboat.odoo-community.org/builds?repo=OCA/l10n-switzerland&amp;target_branch=14.0"><img alt="Try me on Runboat" src="https://img.shields.io/badge/runboat-Try%20me-875A7B.png" /></a></p>
+<p>This module doesn’t do anything by himself. It is the base module for 2 other modules:</p>
+<ul class="simple">
+<li>the module <em>l10n_ch_pain_credit_transfer</em> which adds support for the file format <em>pain.001.001.03.ch.02</em> which is used for ISO 20022 credit transfers (SEPA or not SEPA),</li>
+<li>the module <em>l10n_ch_pain_direct_debit</em> which adds support for the file format <em>pain.008.001.02.ch.01</em> which is used for ISO 20022 direct debits.</li>
+</ul>
+<p><strong>Table of contents</strong></p>
+<div class="contents local topic" id="contents">
+<ul class="simple">
+<li><a class="reference internal" href="#bug-tracker" id="toc-entry-1">Bug Tracker</a></li>
+<li><a class="reference internal" href="#credits" id="toc-entry-2">Credits</a><ul>
+<li><a class="reference internal" href="#authors" id="toc-entry-3">Authors</a></li>
+<li><a class="reference internal" href="#contributors" id="toc-entry-4">Contributors</a></li>
+<li><a class="reference internal" href="#maintainers" id="toc-entry-5">Maintainers</a></li>
+</ul>
+</li>
+</ul>
+</div>
+<div class="section" id="bug-tracker">
+<h1><a class="toc-backref" href="#toc-entry-1">Bug Tracker</a></h1>
+<p>Bugs are tracked on <a class="reference external" href="https://github.com/OCA/l10n-switzerland/issues">GitHub Issues</a>.
+In case of trouble, please check there if your issue has already been reported.
+If you spotted it first, help us to smash it by providing a detailed and welcomed
+<a class="reference external" href="https://github.com/OCA/l10n-switzerland/issues/new?body=module:%20l10n_ch_pain_base%0Aversion:%2014.0%0A%0A**Steps%20to%20reproduce**%0A-%20...%0A%0A**Current%20behavior**%0A%0A**Expected%20behavior**">feedback</a>.</p>
+<p>Do not contact contributors directly about support or help with technical issues.</p>
+</div>
+<div class="section" id="credits">
+<h1><a class="toc-backref" href="#toc-entry-2">Credits</a></h1>
+<div class="section" id="authors">
+<h2><a class="toc-backref" href="#toc-entry-3">Authors</a></h2>
+<ul class="simple">
+<li>Akretion</li>
+<li>Camptocamp</li>
+</ul>
+</div>
+<div class="section" id="contributors">
+<h2><a class="toc-backref" href="#toc-entry-4">Contributors</a></h2>
+<ul class="simple">
+<li>Alexis de Lattre &lt;<a class="reference external" href="mailto:alexis.delattre&#64;akretion.com">alexis.delattre&#64;akretion.com</a>&gt;</li>
+<li>Denis Leemann &lt;<a class="reference external" href="mailto:denis.leemann&#64;camptocamp.com">denis.leemann&#64;camptocamp.com</a>&gt;</li>
+<li>Mykhailo Panarin &lt;<a class="reference external" href="mailto:m.panarin&#64;mobilunity.com">m.panarin&#64;mobilunity.com</a>&gt;</li>
+</ul>
+</div>
+<div class="section" id="maintainers">
+<h2><a class="toc-backref" href="#toc-entry-5">Maintainers</a></h2>
+<p>This module is maintained by the OCA.</p>
+<a class="reference external image-reference" href="https://odoo-community.org"><img alt="Odoo Community Association" src="https://odoo-community.org/logo.png" /></a>
+<p>OCA, or the Odoo Community Association, is a nonprofit organization whose
+mission is to support the collaborative development of Odoo features and
+promote its widespread use.</p>
+<p>This module is part of the <a class="reference external" href="https://github.com/OCA/l10n-switzerland/tree/14.0/l10n_ch_pain_base">OCA/l10n-switzerland</a> project on GitHub.</p>
+<p>You are welcome to contribute. To learn how please visit <a class="reference external" href="https://odoo-community.org/page/Contribute">https://odoo-community.org/page/Contribute</a>.</p>
+</div>
+</div>
+</div>
+</body>
+</html>
diff --git a/l10n_ch_pain_base/views/account_payment_line.xml b/l10n_ch_pain_base/views/account_payment_line.xml
new file mode 100644
index 000000000..58c406ec6
--- /dev/null
+++ b/l10n_ch_pain_base/views/account_payment_line.xml
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<!--
+  © 2016 Akretion (Alexis de Lattre <alexis.delattre@akretion.com>)
+  License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+-->
+<odoo>
+
+    <record id="account_payment_line_form" model="ir.ui.view">
+        <field name="name">l10n_ch_sepa.account.payment.line</field>
+        <field name="model">account.payment.line</field>
+        <field
+            name="inherit_id"
+            ref="account_banking_pain_base.account_payment_line_form"
+        />
+        <field name="arch" type="xml">
+            <field name="local_instrument" position="attributes">
+                <attribute name="invisible">0</attribute>
+            </field>
+        </field>
+    </record>
+
+</odoo>