diff --git a/addons/om_account_accountant/models/account_move.py b/addons/om_account_accountant/models/account_move.py
new file mode 100644
index 0000000..592361c
--- /dev/null
+++ b/addons/om_account_accountant/models/account_move.py
@@ -0,0 +1,9 @@
+from odoo import fields, models, api
+
+
+class AccountMove(models.Model):
+    _inherit = "account.move"
+
+    @api.model
+    def _get_invoice_in_payment_state(self):
+        return 'in_payment'