diff --git a/l10n_do_accounting/models/account_move_line.py b/l10n_do_accounting/models/account_move_line.py
index fa27fa72f..c95e70038 100644
--- a/l10n_do_accounting/models/account_move_line.py
+++ b/l10n_do_accounting/models/account_move_line.py
@@ -21,7 +21,8 @@ def _compute_totals(self):
 
             if line.move_id.is_ecf_invoice:
                 line_itbis_taxes = line.tax_ids.filtered(
-                    lambda t: t.tax_group_id == self.env.ref("account.1_group_itbis")
+                    lambda t: t.tax_group_id 
+                    == self.env.ref("account.%s_tax_group_itbis" % line.company_id.id)
                 )
                 price_unit = line.price_unit
                 if line.discount:
@@ -35,8 +36,8 @@ def _compute_totals(self):
                 )
 
     def _get_l10n_do_line_amounts(self):
-        group_itbis = self.env.ref("account.1_group_itbis")
-        group_isr = self.env.ref("account.1_group_isr")
+        group_itbis = self.env.ref("account.%s_tax_group_itbis" % self.company_id.id)
+        group_isr = self.env.ref("account.%s_tax_group_isr" % self.company_id.id)
 
         tax_lines = self.filtered(
             lambda x: x.tax_group_id.id