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diff --git a/addons/account/tests/test_payment_term.py b/addons/account/tests/test_payment_term.py
new file mode 100644
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+++ b/addons/account/tests/test_payment_term.py
@@ -0,0 +1,98 @@
+# -*- coding: utf-8 -*-
+
+from odoo.addons.account.tests.common import AccountTestInvoicingCommon
+from odoo.tests import tagged
+from odoo import fields
+from odoo.tests.common import Form
+
+
+@tagged('post_install', '-at_install')
+class TestAccountInvoiceRounding(AccountTestInvoicingCommon):
+    @classmethod
+    def setUpClass(cls, chart_template_ref=None):
+        super().setUpClass(chart_template_ref=chart_template_ref)
+        cls.pay_term_today = cls.env['account.payment.term'].create({
+            'name': 'Today',
+            'line_ids': [
+                (0, 0, {
+                    'value': 'balance',
+                    'days': 0,
+                    'option': 'day_after_invoice_date',
+                }),
+            ],
+        })
+
+        cls.pay_term_min_31days_15th = cls.env['account.payment.term'].create({
+            'name': 'the 15th of the month, min 31 days from now',
+            'line_ids': [
+                (0, 0, {
+                    'value': 'balance',
+                    'days': 31,
+                    'day_of_the_month': 15,
+                    'option': 'day_after_invoice_date',
+                }),
+            ],
+        })
+
+        cls.pay_term_45_end_month = cls.env['account.payment.term'].create({
+            'name': '45 Days from End of Month',
+            'line_ids': [
+                (0, 0, {
+                    'value': 'balance',
+                    'days': 45,
+                    'option': 'after_invoice_month',
+                }),
+            ],
+        })
+
+        cls.pay_term_last_day_of_month = cls.env['account.payment.term'].create({
+            'name': 'Last Day of month',
+            'line_ids': [
+                (0, 0, {
+                    'value': 'balance',
+                    'days': 31,
+                    'option': 'day_current_month',
+                }),
+            ],
+        })
+
+        cls.pay_term_first_day_next_month = cls.env['account.payment.term'].create({
+            'name': 'First day next month',
+            'line_ids': [
+                (0, 0, {
+                    'value': 'balance',
+                    'days': 1,
+                    'option': 'day_following_month',
+                }),
+            ],
+        })
+
+        cls.invoice = cls.init_invoice('out_refund', products=cls.product_a+cls.product_b)
+
+    def assertPaymentTerm(self, pay_term, invoice_date, dates):
+        with Form(self.invoice) as move_form:
+            move_form.invoice_payment_term_id = pay_term
+            move_form.invoice_date = invoice_date
+        self.assertEqual(
+            self.invoice.line_ids.filtered(
+                lambda l: l.account_id == self.company_data['default_account_receivable']
+            ).mapped('date_maturity'),
+            [fields.Date.from_string(date) for date in dates],
+        )
+
+    def test_payment_term(self):
+        self.assertPaymentTerm(self.pay_term_today, '2019-01-01', ['2019-01-01'])
+        self.assertPaymentTerm(self.pay_term_today, '2019-01-15', ['2019-01-15'])
+        self.assertPaymentTerm(self.pay_term_today, '2019-01-31', ['2019-01-31'])
+        self.assertPaymentTerm(self.pay_term_45_end_month, '2019-01-01', ['2019-03-17'])
+        self.assertPaymentTerm(self.pay_term_45_end_month, '2019-01-15', ['2019-03-17'])
+        self.assertPaymentTerm(self.pay_term_45_end_month, '2019-01-31', ['2019-03-17'])
+        self.assertPaymentTerm(self.pay_term_min_31days_15th, '2019-01-01', ['2019-02-15'])
+        self.assertPaymentTerm(self.pay_term_min_31days_15th, '2019-01-15', ['2019-02-15'])
+        self.assertPaymentTerm(self.pay_term_min_31days_15th, '2019-01-31', ['2019-03-15'])
+        self.assertPaymentTerm(self.pay_term_last_day_of_month, '2019-01-01', ['2019-01-31'])
+        self.assertPaymentTerm(self.pay_term_last_day_of_month, '2019-01-15', ['2019-01-31'])
+        self.assertPaymentTerm(self.pay_term_last_day_of_month, '2019-01-31', ['2019-01-31'])
+        self.assertPaymentTerm(self.pay_term_first_day_next_month, '2019-01-01', ['2019-02-01'])
+        self.assertPaymentTerm(self.pay_term_first_day_next_month, '2019-01-15', ['2019-02-01'])
+        self.assertPaymentTerm(self.pay_term_first_day_next_month, '2019-01-31', ['2019-02-01'])