diff --git a/addons/hr_expense/models/hr_expense.py b/addons/hr_expense/models/hr_expense.py
index 2433c18efe8..cf8c05b2e13 100644
--- a/addons/hr_expense/models/hr_expense.py
+++ b/addons/hr_expense/models/hr_expense.py
@@ -288,7 +288,7 @@ class HrExpense(models.Model):
             # Calculate tax lines and adjust base line
             taxes = expense.tax_ids.compute_all(expense.unit_amount, expense.currency_id, expense.quantity, expense.product_id)
             account_move[-1]['price'] = taxes['total_excluded']
-            account_move[-1]['tax_ids'] = expense.tax_ids.id
+            account_move[-1]['tax_ids'] = expense.tax_ids.ids
             for tax in taxes['taxes']:
                 account_move.append({
                     'type': 'tax',