diff --git a/src/Libraries/SmartStore.Services/Orders/IOrderTotalCalculationService.cs b/src/Libraries/SmartStore.Services/Orders/IOrderTotalCalculationService.cs
index d833b5df4b..3f5ee14bb5 100644
--- a/src/Libraries/SmartStore.Services/Orders/IOrderTotalCalculationService.cs
+++ b/src/Libraries/SmartStore.Services/Orders/IOrderTotalCalculationService.cs
@@ -67,12 +67,12 @@ decimal GetOrderSubtotalDiscount(Customer customer,
         /// <summary>
         /// Adjust shipping rate (free shipping, additional charges, discounts)
         /// </summary>
-        /// <param name="shippingRate">Shipping rate to adjust</param>
+        /// <param name="shippingOption">Shipping option</param>
         /// <param name="cart">Cart</param>
         /// <param name="appliedDiscount">Applied discount</param>
         /// <returns>Adjusted shipping rate</returns>
-		decimal AdjustShippingRate(decimal shippingRate, IList<OrganizedShoppingCartItem> cart, 
-			string shippingMethodName, IList<ShippingMethod> shippingMethods, out Discount appliedDiscount);
+		decimal AdjustShippingRate(decimal shippingRate, IList<OrganizedShoppingCartItem> cart,
+			ShippingOption shippingOption, IList<ShippingMethod> shippingMethods, out Discount appliedDiscount);
 
         /// <summary>
         /// Gets shopping cart additional shipping charge
diff --git a/src/Libraries/SmartStore.Services/Orders/OrderTotalCalculationService.cs b/src/Libraries/SmartStore.Services/Orders/OrderTotalCalculationService.cs
index 73289a133b..d2fbbd50e7 100644
--- a/src/Libraries/SmartStore.Services/Orders/OrderTotalCalculationService.cs
+++ b/src/Libraries/SmartStore.Services/Orders/OrderTotalCalculationService.cs
@@ -206,7 +206,7 @@ protected virtual void PrepareAuxiliaryServicesTaxingInfos(IList<OrganizedShoppi
 			{
 				// use last shipping option (get from cache)
 				var shippingMethods = _shippingService.GetAllShippingMethods(null, storeId);
-				shippingTotal = AdjustShippingRate(shippingOption.Rate, cart, shippingOption.Name, shippingMethods, out appliedDiscount);
+				shippingTotal = AdjustShippingRate(shippingOption.Rate, cart, shippingOption, shippingMethods, out appliedDiscount);
 			}
 			else
 			{
@@ -675,18 +675,18 @@ public virtual bool IsFreeShipping(IList<OrganizedShoppingCartItem> cart)
         /// <param name="appliedDiscount">Applied discount</param>
         /// <returns>Adjusted shipping rate</returns>
 		public virtual decimal AdjustShippingRate(decimal shippingRate, IList<OrganizedShoppingCartItem> cart, 
-			string shippingMethodName, IList<ShippingMethod> shippingMethods, out Discount appliedDiscount)
+			ShippingOption shippingOption, IList<ShippingMethod> shippingMethods, out Discount appliedDiscount)
         {
             appliedDiscount = null;
 
-            //free shipping
-            if (IsFreeShipping(cart))
-                return decimal.Zero;
+			if (IsFreeShipping(cart))
+			{
+				return decimal.Zero;
+			}
 
-			decimal adjustedRate = decimal.Zero;
-			decimal bundlePerItemShipping = decimal.Zero;
-			bool ignoreAdditionalShippingCharge = false;
-			ShippingMethod shippingMethod;
+			var adjustedRate = decimal.Zero;
+			var bundlePerItemShipping = decimal.Zero;
+			var ignoreAdditionalShippingCharge = false;
 
 			foreach (var sci in cart)
 			{
@@ -695,7 +695,9 @@ public virtual decimal AdjustShippingRate(decimal shippingRate, IList<OrganizedS
 					if (sci.ChildItems != null)
 					{
 						foreach (var childItem in sci.ChildItems.Where(x => x.Item.IsShipEnabled && !x.Item.IsFreeShipping))
+						{
 							bundlePerItemShipping += shippingRate;
+						}
 					}
 				}
 				else if (adjustedRate == decimal.Zero)
@@ -706,22 +708,25 @@ public virtual decimal AdjustShippingRate(decimal shippingRate, IList<OrganizedS
 
 			adjustedRate += bundlePerItemShipping;
 
-			if (shippingMethodName.HasValue() && shippingMethods != null &&
-				(shippingMethod = shippingMethods.FirstOrDefault(x => x.Name.IsCaseInsensitiveEqual(shippingMethodName))) != null)
+			if (shippingOption != null && shippingMethods != null)
 			{
-				ignoreAdditionalShippingCharge = shippingMethod.IgnoreCharges;
+				var shippingMethod = shippingMethods.FirstOrDefault(x => x.Id == shippingOption.ShippingMethodId);
+				if (shippingMethod != null)
+				{
+					ignoreAdditionalShippingCharge = shippingMethod.IgnoreCharges;
+				}
 			}
 
-            //additional shipping charges
+			// Additional shipping charges.
 			if (!ignoreAdditionalShippingCharge)
 			{
 				decimal additionalShippingCharge = GetShoppingCartAdditionalShippingCharge(cart);
 				adjustedRate += additionalShippingCharge;
 			}
 
-            //discount
+            // Discount.
             var customer = cart.GetCustomer();
-            decimal discountAmount = GetShippingDiscount(customer, adjustedRate, out appliedDiscount);
+            var discountAmount = GetShippingDiscount(customer, adjustedRate, out appliedDiscount);
             adjustedRate = adjustedRate - discountAmount;
 
 			if (adjustedRate < decimal.Zero)
diff --git a/src/Presentation/SmartStore.Web/Controllers/CheckoutController.cs b/src/Presentation/SmartStore.Web/Controllers/CheckoutController.cs
index eb951f3a55..e4438f65d7 100644
--- a/src/Presentation/SmartStore.Web/Controllers/CheckoutController.cs
+++ b/src/Presentation/SmartStore.Web/Controllers/CheckoutController.cs
@@ -215,7 +215,7 @@ protected CheckoutShippingMethodModel PrepareShippingMethodModel(IList<Organized
 
 					// Adjust rate.
 					Discount appliedDiscount = null;
-					var shippingTotal = _orderTotalCalculationService.AdjustShippingRate(shippingOption.Rate, cart, shippingOption.Name, shippingMethods, out appliedDiscount);
+					var shippingTotal = _orderTotalCalculationService.AdjustShippingRate(shippingOption.Rate, cart, shippingOption, shippingMethods, out appliedDiscount);
 					decimal rateBase = _taxService.GetShippingPrice(shippingTotal, customer);
 					decimal rate = _currencyService.ConvertFromPrimaryStoreCurrency(rateBase, _workContext.WorkingCurrency);
 					soModel.FeeRaw = rate;
diff --git a/src/Presentation/SmartStore.Web/Controllers/ShoppingCartController.cs b/src/Presentation/SmartStore.Web/Controllers/ShoppingCartController.cs
index ee9fbbe5cd..b786b245a2 100644
--- a/src/Presentation/SmartStore.Web/Controllers/ShoppingCartController.cs
+++ b/src/Presentation/SmartStore.Web/Controllers/ShoppingCartController.cs
@@ -1885,7 +1885,7 @@ public ActionResult GetEstimateShipping(EstimateShippingModel shippingModel, Pro
                             //calculate discounted and taxed rate
                             Discount appliedDiscount = null;
                             decimal shippingTotal = _orderTotalCalculationService.AdjustShippingRate(
-								shippingOption.Rate, cart, shippingOption.Name, shippingMethods, out appliedDiscount);
+								shippingOption.Rate, cart, shippingOption, shippingMethods, out appliedDiscount);
 
                             decimal rateBase = _taxService.GetShippingPrice(shippingTotal, _workContext.CurrentCustomer);
                             decimal rate = _currencyService.ConvertFromPrimaryStoreCurrency(rateBase, _workContext.WorkingCurrency);