diff --git a/core/lib/Thelia/Coupon/BaseFacade.php b/core/lib/Thelia/Coupon/BaseFacade.php
index 4e7e7de13..b9bf65204 100644
--- a/core/lib/Thelia/Coupon/BaseFacade.php
+++ b/core/lib/Thelia/Coupon/BaseFacade.php
@@ -125,6 +125,12 @@ class BaseFacade implements FacadeInterface
 
     }
 
+    public function getCartTotalTaxPrice()
+    {
+        $taxCountry = $this->getContainer()->get('thelia.taxEngine')->getDeliveryCountry();
+        return $this->getCart()->getTaxedAmount($taxCountry);
+    }
+
     /**
      * Return the Checkout currency EUR|USD
      *
diff --git a/core/lib/Thelia/Coupon/FacadeInterface.php b/core/lib/Thelia/Coupon/FacadeInterface.php
index 9e93115d0..1b2d01a5b 100644
--- a/core/lib/Thelia/Coupon/FacadeInterface.php
+++ b/core/lib/Thelia/Coupon/FacadeInterface.php
@@ -83,6 +83,13 @@ interface FacadeInterface
      */
     public function getCartTotalPrice();
 
+    /**
+     * Return Product total tax price
+     *
+     * @return float
+     */
+    public function getCartTotalTaxPrice();
+
     /**
      * Return the Checkout currency EUR|USD
      *
diff --git a/core/lib/Thelia/Coupon/Type/RemoveXPercent.php b/core/lib/Thelia/Coupon/Type/RemoveXPercent.php
index 01ee7f0eb..cc04dc787 100644
--- a/core/lib/Thelia/Coupon/Type/RemoveXPercent.php
+++ b/core/lib/Thelia/Coupon/Type/RemoveXPercent.php
@@ -103,10 +103,9 @@ class RemoveXPercent extends CouponAbstract
                 'Percentage must be inferior to 100'
             );
         }
-        $taxCountry = $this->facade->getContainer()->get('thelia.taxEngine')->getDeliveryCountry();
-        $basePrice = $this->facade->getCart()->getTaxedAmount($taxCountry);
 
-        return round($basePrice *  $this->percentage/100, 2);
+
+        return round($this->facade->getCartTotalTaxPrice() *  $this->percentage/100, 2);
     }
 
     /**
diff --git a/core/lib/Thelia/Tests/Coupon/Type/RemoveXPercentTest.php b/core/lib/Thelia/Tests/Coupon/Type/RemoveXPercentTest.php
index 0c3a8b2be..c5a9d033e 100644
--- a/core/lib/Thelia/Tests/Coupon/Type/RemoveXPercentTest.php
+++ b/core/lib/Thelia/Tests/Coupon/Type/RemoveXPercentTest.php
@@ -63,14 +63,15 @@ class RemoveXPercentTest extends \PHPUnit_Framework_TestCase
             ->disableOriginalConstructor()
             ->getMock();
 
-        $currencies = CurrencyQuery::create();
-        $currencies = $currencies->find();
+
+
+        $currencies = CurrencyQuery::create()->find();
         $stubFacade->expects($this->any())
             ->method('getAvailableCurrencies')
             ->will($this->returnValue($currencies));
 
         $stubFacade->expects($this->any())
-            ->method('getCartTotalPrice')
+            ->method('getCartTotalTaxPrice')
             ->will($this->returnValue($cartTotalPrice));
 
         $stubFacade->expects($this->any())