diff --git a/addons/point_of_sale/static/src/js/models.js b/addons/point_of_sale/static/src/js/models.js
index b5a9b92fc19..d930898ae6e 100644
--- a/addons/point_of_sale/static/src/js/models.js
+++ b/addons/point_of_sale/static/src/js/models.js
@@ -2052,9 +2052,9 @@ exports.Orderline = Backbone.Model.extend({
         }
         return taxes;
     },
-    _map_tax_fiscal_position: function(tax) {
+    _map_tax_fiscal_position: function(tax, order = false) {
         var self = this;
-        var current_order = this.pos.get_order();
+        var current_order = order || this.pos.get_order();
         var order_fiscal_position = current_order && current_order.fiscal_position;
         var taxes = [];
 
@@ -2266,7 +2266,7 @@ exports.Orderline = Backbone.Model.extend({
             var tax = _.detect(taxes, function(t){
                 return t.id === el;
             });
-            product_taxes.push.apply(product_taxes, self._map_tax_fiscal_position(tax));
+            product_taxes.push.apply(product_taxes, self._map_tax_fiscal_position(tax, self.order));
         });
         product_taxes = _.uniq(product_taxes, function(tax) { return tax.id; });
 
@@ -2297,7 +2297,7 @@ exports.Orderline = Backbone.Model.extend({
             var new_included_taxes = [];
             var self = this;
             _(taxes).each(function(tax) {
-                var line_taxes = self._map_tax_fiscal_position(tax);
+                var line_taxes = self._map_tax_fiscal_position(tax, order);
                 if (line_taxes.length && line_taxes[0].price_include){
                     new_included_taxes = new_included_taxes.concat(line_taxes);
                 }