diff --git a/packages/core/core-flows/src/cart/workflows/add-to-cart.ts b/packages/core/core-flows/src/cart/workflows/add-to-cart.ts
index 43918dabf8..f3b4caf68f 100644
--- a/packages/core/core-flows/src/cart/workflows/add-to-cart.ts
+++ b/packages/core/core-flows/src/cart/workflows/add-to-cart.ts
@@ -67,8 +67,9 @@ export const addToCartWorkflow = createWorkflow(
 
         return prepareLineItemData({
           variant: variant,
-          unitPrice: variant.calculated_price.calculated_amount,
-          isTaxInclusive:
+          unitPrice: item.unit_price || 
+            variant.calculated_price.calculated_amount,
+          isTaxInclusive: item.is_tax_inclusive || 
             variant.calculated_price.is_calculated_price_tax_inclusive,
           quantity: item.quantity,
           metadata: item?.metadata ?? {},
diff --git a/packages/core/core-flows/src/cart/workflows/create-carts.ts b/packages/core/core-flows/src/cart/workflows/create-carts.ts
index c2bf58b98a..9e08b9e953 100644
--- a/packages/core/core-flows/src/cart/workflows/create-carts.ts
+++ b/packages/core/core-flows/src/cart/workflows/create-carts.ts
@@ -126,8 +126,9 @@ export const createCartWorkflow = createWorkflow(
 
         return prepareLineItemData({
           variant: variant,
-          unitPrice: data.priceSets[item.variant_id].calculated_amount,
-          isTaxInclusive:
+          unitPrice: item.unit_price || 
+            data.priceSets[item.variant_id].calculated_amount,
+          isTaxInclusive: item.is_tax_inclusive ||
             data.priceSets[item.variant_id].is_calculated_price_tax_inclusive,
           quantity: item.quantity,
           metadata: item?.metadata ?? {},