diff --git a/addons/account/models/account_move.py b/addons/account/models/account_move.py
index a9f35b6a604..a3fcaca19ee 100644
--- a/addons/account/models/account_move.py
+++ b/addons/account/models/account_move.py
@@ -3348,7 +3348,7 @@ class AccountMove(models.Model):
             return None
 
         unstruct_ref = self.ref if self.ref else self.name
-        rslt = self.partner_bank_id.build_qr_code_url(self.amount_residual, unstruct_ref, self.payment_reference, self.currency_id, self.partner_id, qr_code_method, silent_errors=False)
+        rslt = self.partner_bank_id.build_qr_code_base64(self.amount_residual, unstruct_ref, self.payment_reference, self.currency_id, self.partner_id, qr_code_method, silent_errors=False)
 
         # We only set qr_code_method after generating the url; otherwise, it
         # could be set even in case of a failure in the QR code generation
diff --git a/addons/account/models/account_payment.py b/addons/account/models/account_payment.py
index ef955af8e52..626c63950a9 100644
--- a/addons/account/models/account_payment.py
+++ b/addons/account/models/account_payment.py
@@ -498,7 +498,7 @@ class AccountPayment(models.Model):
                 and pay.currency_id:
 
                 if pay.partner_bank_id:
-                    qr_code = pay.partner_bank_id.build_qr_code_url(pay.amount, pay.ref, pay.ref, pay.currency_id, pay.partner_id)
+                    qr_code = pay.partner_bank_id.build_qr_code_base64(pay.amount, pay.ref, pay.ref, pay.currency_id, pay.partner_id)
                 else:
                     qr_code = None
 
diff --git a/addons/account/models/res_bank.py b/addons/account/models/res_bank.py
index 226e1c889ad..bb01198badd 100644
--- a/addons/account/models/res_bank.py
+++ b/addons/account/models/res_bank.py
@@ -1,13 +1,18 @@
 # -*- coding: utf-8 -*-
+import base64
 
 from odoo import api, models, fields, _
 from odoo.exceptions import UserError
+from odoo.tools.image import image_data_uri
+
+import werkzeug
+import werkzeug.exceptions
 
 class ResPartnerBank(models.Model):
     _inherit = 'res.partner.bank'
 
-    def build_qr_code_url(self, amount, free_communication, structured_communication, currency, debtor_partner, qr_method=None, silent_errors=True):
-        """ Returns the QR-code report URL to pay to this account with the given parameters,
+    def _build_qr_code_vals(self, amount, free_communication, structured_communication, currency, debtor_partner, qr_method=None, silent_errors=True):
+        """ Returns the QR-code vals needed to generate the QR-code report link to pay this account with the given parameters,
         or None if no QR-code could be generated.
 
         :param amount: The amount to be paid
@@ -33,7 +38,14 @@ class ResPartnerBank(models.Model):
                 error_message = self._check_for_qr_code_errors(candidate_method, amount, currency, debtor_partner, free_communication, structured_communication)
 
                 if not error_message:
-                    return self._get_qr_code_url(candidate_method, amount, currency, debtor_partner, free_communication, structured_communication)
+                    return {
+                        'qr_method': candidate_method,
+                        'amount': amount,
+                        'currency': currency,
+                        'debtor_partner': debtor_partner,
+                        'free_communication': free_communication,
+                        'structured_communication': structured_communication,
+                    }
 
                 elif not silent_errors:
                     error_header = _("The following error prevented '%s' QR-code to be generated though it was detected as eligible: ", candidate_name)
@@ -41,6 +53,38 @@ class ResPartnerBank(models.Model):
 
         return None
 
+    def build_qr_code_url(self, amount, free_communication, structured_communication, currency, debtor_partner, qr_method=None, silent_errors=True):
+        vals = self._build_qr_code_vals(amount, free_communication, structured_communication, currency, debtor_partner, qr_method, silent_errors)
+        if vals:
+            return self._get_qr_code_url(
+                vals['qr_method'],
+                vals['amount'],
+                vals['currency'],
+                vals['debtor_partner'],
+                vals['free_communication'],
+                vals['structured_communication'],
+            )
+        return None
+
+    def build_qr_code_base64(self, amount, free_communication, structured_communication, currency, debtor_partner, qr_method=None, silent_errors=True):
+        vals = self._build_qr_code_vals(amount, free_communication, structured_communication, currency, debtor_partner, qr_method, silent_errors)
+        if vals:
+            return self._get_qr_code_base64(
+                vals['qr_method'],
+                vals['amount'],
+                vals['currency'],
+                vals['debtor_partner'],
+                vals['free_communication'],
+                vals['structured_communication']
+            )
+        return None
+
+    def _get_qr_vals(self, qr_method, amount, currency, debtor_partner, free_communication, structured_communication):
+        return None
+
+    def _get_qr_code_generation_params(self, qr_method, amount, currency, debtor_partner, free_communication, structured_communication):
+        return None
+
     def _get_qr_code_url(self, qr_method, amount, currency, debtor_partner, free_communication, structured_communication):
         """ Hook for extension, to support the different QR generation methods.
         This function uses the provided qr_method to try generation a QR-code for
@@ -54,6 +98,36 @@ class ResPartnerBank(models.Model):
         :param free_communication: Free communication to add to the payment when generating one with the QR-code
         :param structured_communication: Structured communication to add to the payment when generating one with the QR-code
         """
+        # pylint: disable=E1137
+        # (PyLint doesn't get that we are not assigning to None here)
+        params = self._get_qr_code_generation_params(qr_method, amount, currency, debtor_partner, free_communication, structured_communication)
+        if params:
+            params['type'] = params.pop('barcode_type')
+            return '/report/barcode/?' + werkzeug.urls.url_encode(params)
+        return None
+
+    def _get_qr_code_base64(self, qr_method, amount, currency, debtor_partner, free_communication, structured_communication):
+        """ Hook for extension, to support the different QR generation methods.
+        This function uses the provided qr_method to try generation a QR-code for
+        the given data. It it succeeds, it returns QR code in base64 url; else None.
+
+        :param qr_method: The QR generation method to be used to make the QR-code.
+        :param amount: The amount to be paid
+        :param currency: The currency in which amount is expressed
+        :param debtor_partner: The partner to which this QR-code is aimed (so the one who will have to pay)
+        :param free_communication: Free communication to add to the payment when generating one with the QR-code
+        :param structured_communication: Structured communication to add to the payment when generating one with the QR-code
+        """
+        # pylint: disable=E1137
+        # pylint: disable=E1134
+        # (PyLint doesn't get that we are not assigning to None here)
+        params = self._get_qr_code_generation_params(qr_method, amount, currency, debtor_partner, free_communication, structured_communication)
+        if params:
+            try:
+                barcode = self.env['ir.actions.report'].barcode(**params)
+            except (ValueError, AttributeError):
+                raise werkzeug.exceptions.HTTPException(description='Cannot convert into barcode.')
+            return image_data_uri(base64.b64encode(barcode))
         return None
 
     @api.model
diff --git a/addons/account_qr_code_sepa/models/res_bank.py b/addons/account_qr_code_sepa/models/res_bank.py
index 1a453d9e236..0927b429c1d 100644
--- a/addons/account_qr_code_sepa/models/res_bank.py
+++ b/addons/account_qr_code_sepa/models/res_bank.py
@@ -2,15 +2,12 @@
 
 from odoo import models, fields, api, _
 
-import werkzeug
-
 
 class ResPartnerBank(models.Model):
     _inherit = 'res.partner.bank'
 
-    def _get_qr_code_url(self, qr_method, amount, currency, debtor_partner, free_communication, structured_communication):
+    def _get_qr_vals(self, qr_method, amount, currency, debtor_partner, free_communication, structured_communication):
         if qr_method == 'sct_qr':
-
             comment = (free_communication or '') if not structured_communication else ''
 
             qr_code_vals = [
@@ -27,10 +24,19 @@ class ResPartnerBank(models.Model):
                 comment[:141],                                          # Remittance Information (Unstructured) (can't be set if there is a structured one)
                 '',                                                     # Beneficiary to Originator Information
             ]
+            return qr_code_vals
+        return super()._get_qr_vals(qr_method, amount, currency, debtor_partner, free_communication, structured_communication)
 
-            return '/report/barcode/?' + werkzeug.urls.url_encode({'type': 'QR', 'value': '\n'.join(qr_code_vals), 'width': 128, 'height': 128, 'humanreadable': 1})
-
-        return super()._get_qr_code_url(qr_method, amount, currency, debtor_partner, free_communication, structured_communication)
+    def _get_qr_code_generation_params(self, qr_method, amount, currency, debtor_partner, free_communication, structured_communication):
+        if qr_method == 'sct_qr':
+            return {
+                'barcode_type': 'QR',
+                'width': 128,
+                'height': 128,
+                'humanreadable': 1,
+                'value': '\n'.join(self._get_qr_vals(qr_method, amount, currency, debtor_partner, free_communication, structured_communication)),
+            }
+        return super()._get_qr_code_generation_params(qr_method, amount, currency, debtor_partner, free_communication, structured_communication)
 
     def _eligible_for_qr_code(self, qr_method, debtor_partner, currency):
         if qr_method == 'sct_qr':
diff --git a/addons/l10n_ch/models/res_bank.py b/addons/l10n_ch/models/res_bank.py
index e393f576a09..8dd9a8de5ae 100644
--- a/addons/l10n_ch/models/res_bank.py
+++ b/addons/l10n_ch/models/res_bank.py
@@ -9,7 +9,6 @@ from odoo.addons.base_iban.models.res_partner_bank import normalize_iban, pretty
 from odoo.exceptions import ValidationError
 from odoo.tools.misc import mod10r
 
-import werkzeug.urls
 
 ISR_SUBSCRIPTION_CODE = {'CHF': '01', 'EUR': '03'}
 CLEARING = "09000"
@@ -236,14 +235,6 @@ class ResPartnerBank(models.Model):
             return self._pretty_postal_num(iban[-9:])
         return None
 
-    def _get_qr_code_url(self, qr_method, amount, currency, debtor_partner, free_communication, structured_communication):
-        if qr_method == 'ch_qr':
-            qr_code_vals = self._l10n_ch_get_qr_vals(amount, currency, debtor_partner, free_communication, structured_communication)
-
-            return '/report/barcode/?type=%s&value=%s&width=%s&height=%s&quiet=1&mask=ch_cross' % ('QR', werkzeug.urls.url_quote_plus('\n'.join(qr_code_vals)), 256, 256)
-
-        return super()._get_qr_code_url(qr_method, amount, currency, debtor_partner, free_communication, structured_communication)
-
     def _l10n_ch_get_qr_vals(self, amount, currency, debtor_partner, free_communication, structured_communication):
         comment = ""
         if free_communication:
@@ -301,6 +292,23 @@ class ResPartnerBank(models.Model):
             'EPD',                                                # Mandatory trailer part
         ]
 
+    def _get_qr_vals(self, qr_method, amount, currency, debtor_partner, free_communication, structured_communication):
+        if qr_method == 'ch_qr':
+            return self._l10n_ch_get_qr_vals(amount, currency, debtor_partner, free_communication, structured_communication)
+        return super()._get_qr_vals(qr_method, amount, currency, debtor_partner, free_communication, structured_communication)
+
+    def _get_qr_code_generation_params(self, qr_method, amount, currency, debtor_partner, free_communication, structured_communication):
+        if qr_method == 'ch_qr':
+            return {
+                'barcode_type': 'QR',
+                'width': 256,
+                'height': 256,
+                'quiet': 1,
+                'mask': 'ch_cross',
+                'value': '\n'.join(self._get_qr_vals(qr_method, amount, currency, debtor_partner, free_communication, structured_communication)),
+            }
+        return super()._get_qr_code_generation_params(qr_method, amount, currency, debtor_partner, free_communication, structured_communication)
+
     def _get_partner_address_lines(self, partner):
         """ Returns a tuple of two elements containing the address lines to use
         for this partner. Line 1 contains the street and number, line 2 contains
diff --git a/addons/l10n_ch/report/swissqr_report.py b/addons/l10n_ch/report/swissqr_report.py
index 9c3efd91f1a..178777cb035 100644
--- a/addons/l10n_ch/report/swissqr_report.py
+++ b/addons/l10n_ch/report/swissqr_report.py
@@ -12,7 +12,7 @@ class ReportSwissQR(models.AbstractModel):
 
         qr_code_urls = {}
         for invoice in docs:
-            qr_code_urls[invoice.id] = invoice.partner_bank_id.build_qr_code_url(invoice.amount_residual, invoice.ref or invoice.name, invoice.payment_reference, invoice.currency_id, invoice.partner_id, qr_method='ch_qr', silent_errors=False)
+            qr_code_urls[invoice.id] = invoice.partner_bank_id.build_qr_code_base64(invoice.amount_residual, invoice.ref or invoice.name, invoice.payment_reference, invoice.currency_id, invoice.partner_id, qr_method='ch_qr', silent_errors=False)
 
         return {
             'doc_ids': docids,
diff --git a/addons/l10n_ch/report/swissqr_report.xml b/addons/l10n_ch/report/swissqr_report.xml
index 1617a512d70..776c26fc8c6 100644
--- a/addons/l10n_ch/report/swissqr_report.xml
+++ b/addons/l10n_ch/report/swissqr_report.xml
@@ -16,8 +16,6 @@
         <template id="l10n_ch_swissqr_template">
             <t t-set="o" t-value="o.with_context(lang=lang)"/>
             <t t-call="web.external_layout">
-                <!-- add class to body tag -->
-                <script>document.body.className += " l10n_ch_qr";</script>
                 <!-- add default margin for header (matching A4 European margin) -->
                 <t t-set="report_header_style">padding-top:6.2mm; padding-left:8.2mm; padding-right:8.2mm;</t>
 
diff --git a/addons/l10n_ch/static/src/scss/report_swissqr.scss b/addons/l10n_ch/static/src/scss/report_swissqr.scss
index 8961159e0b9..103093f7636 100644
--- a/addons/l10n_ch/static/src/scss/report_swissqr.scss
+++ b/addons/l10n_ch/static/src/scss/report_swissqr.scss
@@ -1,5 +1,5 @@
-body.l10n_ch_qr {
-    padding:0;
+body {
+    padding: 0!important;
 
     /* Disable custom bakground */
     .o_report_layout_striped {
@@ -10,7 +10,7 @@ body.l10n_ch_qr {
     .swissqr_title {
         position: absolute;
         padding: 15px;
-        padding-top: 150px;
+        padding-top: 200px;
     }
 
     .swissqr_content {
diff --git a/addons/l10n_ch/tests/test_swissqr.py b/addons/l10n_ch/tests/test_swissqr.py
index 68079ad2615..da268eb5c64 100644
--- a/addons/l10n_ch/tests/test_swissqr.py
+++ b/addons/l10n_ch/tests/test_swissqr.py
@@ -99,7 +99,8 @@ class TestSwissQR(AccountTestInvoicingCommon):
         )
 
     def swissqr_generated(self, invoice, ref_type='NON'):
-        """ Prints the given invoice and tests that a Swiss QR generation is triggered. """
+        """ Ensure correct params for Swiss QR generation. """
+
         self.assertTrue(
             invoice.partner_bank_id._eligible_for_qr_code('ch_qr', invoice.partner_id, invoice.currency_id), 'A Swiss QR can be generated'
         )
@@ -111,31 +112,31 @@ class TestSwissQR(AccountTestInvoicingCommon):
         else:
             struct_ref = ''
             unstr_msg = invoice.payment_reference or invoice.ref or invoice.name or ''
-        unstr_msg = (unstr_msg or invoice.number).replace('/', '%2F')
+        unstr_msg = unstr_msg or invoice.number
 
         payload = (
-            "SPC%0A"
-            "0200%0A"
-            "1%0A"
-            "{iban}%0A"
-            "K%0A"
-            "company_1_data%0A"
-            "Route+de+Berne+88%0A"
-            "2000+Neuch%C3%A2tel%0A"
-            "%0A%0A"
-            "CH%0A"
-            "%0A%0A%0A%0A%0A%0A%0A"
-            "42.00%0A"
-            "CHF%0A"
-            "K%0A"
-            "Partner%0A"
-            "Route+de+Berne+41%0A"
-            "1000+Lausanne%0A"
-            "%0A%0A"
-            "CH%0A"
-            "{ref_type}%0A"
-            "{struct_ref}%0A"
-            "{unstr_msg}%0A"
+            "SPC\n"
+            "0200\n"
+            "1\n"
+            "{iban}\n"
+            "K\n"
+            "company_1_data\n"
+            "Route de Berne 88\n"
+            "2000 Neuchâtel\n"
+            "\n\n"
+            "CH\n"
+            "\n\n\n\n\n\n\n"
+            "42.00\n"
+            "CHF\n"
+            "K\n"
+            "Partner\n"
+            "Route de Berne 41\n"
+            "1000 Lausanne\n"
+            "\n\n"
+            "CH\n"
+            "{ref_type}\n"
+            "{struct_ref}\n"
+            "{unstr_msg}\n"
             "EPD"
         ).format(
             iban=invoice.partner_bank_id.sanitized_acc_number,
@@ -144,11 +145,20 @@ class TestSwissQR(AccountTestInvoicingCommon):
             unstr_msg=unstr_msg,
         )
 
-        expected_url = ("/report/barcode/?type=QR&value={}"
-                        "&width=256&height=256&quiet=1&mask=ch_cross").format(payload)
+        expected_params = {
+            'barcode_type': 'QR',
+            'width': 256,
+            'height': 256,
+            'quiet': 1,
+            'mask': 'ch_cross',
+            'value': payload,
+        }
 
-        url = invoice.generate_qr_code()
-        self.assertEqual(url, expected_url)
+        params = invoice.partner_bank_id._get_qr_code_generation_params(
+            'ch_qr', 42.0, invoice.currency_id, invoice.partner_id, unstr_msg, struct_ref
+        )
+
+        self.assertEqual(params, expected_params)
 
     def test_swissQR_missing_bank(self):
         # Let us test the generation of a SwissQR for an invoice, first by showing an
diff --git a/addons/payment_transfer/views/payment_transfer_templates.xml b/addons/payment_transfer/views/payment_transfer_templates.xml
index 5fa6b4f14ee..c0e3ef37d97 100644
--- a/addons/payment_transfer/views/payment_transfer_templates.xml
+++ b/addons/payment_transfer/views/payment_transfer_templates.xml
@@ -14,7 +14,7 @@
                     <strong>Communication: </strong><span t-esc="tx.reference"/>
                 </div>
                 <div t-if="tx.acquirer_id.sudo().qr_code">
-                    <t t-set="qr_code" t-value="tx.acquirer_id.sudo().journal_id.bank_account_id.build_qr_code_url(tx.amount, tx.reference, None, tx.currency_id, tx.partner_id)"/>
+                    <t t-set="qr_code" t-value="tx.acquirer_id.sudo().journal_id.bank_account_id.build_qr_code_base64(tx.amount, tx.reference, None, tx.currency_id, tx.partner_id)"/>
                     <div t-if="qr_code" class="mt-2">
                         <h3>Or scan me with your banking app.</h3>
                         <img class="border border-dark rounded" t-att-src="qr_code"/>
diff --git a/addons/website_sale/views/templates.xml b/addons/website_sale/views/templates.xml
index 9e786e682d9..9d4d7710fe3 100644
--- a/addons/website_sale/views/templates.xml
+++ b/addons/website_sale/views/templates.xml
@@ -1840,7 +1840,7 @@
                         <b>Communication: </b><span t-esc='order.reference'/>
                     </div>
                     <div t-if="payment_tx_id.acquirer_id.sudo().qr_code">
-                        <t t-set="qr_code" t-value="payment_tx_id.acquirer_id.sudo().journal_id.bank_account_id.build_qr_code_url(order.amount_total,payment_tx_id.reference, None, payment_tx_id.currency_id, payment_tx_id.partner_id)"/>
+                        <t t-set="qr_code" t-value="payment_tx_id.acquirer_id.sudo().journal_id.bank_account_id.build_qr_code_base64(order.amount_total,payment_tx_id.reference, None, payment_tx_id.currency_id, payment_tx_id.partner_id)"/>
                         <div class="card-body" t-if="qr_code">
                             <h3>Or scan me with your banking app.</h3>
                             <img class="border border-dark rounded" t-att-src="qr_code"/>
diff --git a/odoo/addons/base/models/res_bank.py b/odoo/addons/base/models/res_bank.py
index 581f8029029..885ffb7acb0 100644
--- a/odoo/addons/base/models/res_bank.py
+++ b/odoo/addons/base/models/res_bank.py
@@ -6,9 +6,6 @@ from collections.abc import Iterable
 
 from odoo import api, fields, models, _
 from odoo.osv import expression
-from odoo.exceptions import UserError
-
-import werkzeug.urls
 
 def sanitize_account_number(acc_number):
     if acc_number: