diff --git a/sale.py b/sale.py
index 2cd880c..9900f6e 100644
--- a/sale.py
+++ b/sale.py
@@ -45,7 +45,8 @@ class Sale(metaclass=PoolMeta):
             product = Product(v['product'])
             v['unit'] = product.template.default_uom.id
             v['description'] = product.name
-            taxes = list(product.customer_taxes_used)
+            taxes = list(product.account_category.customer_taxes_used)
+            taxes_ids = [t.id for t in taxes]
             v['taxes'] = [('add', taxes)]
 
         price_list = args.get('price_list', None)