diff --git a/.changeset/lemon-forks-collect.md b/.changeset/lemon-forks-collect.md
new file mode 100644
index 0000000000..99ceb7b45c
--- /dev/null
+++ b/.changeset/lemon-forks-collect.md
@@ -0,0 +1,5 @@
+---
+"@medusajs/medusa": patch
+---
+
+fix: correct calculations of subtotal for shipping option requirements
diff --git a/packages/medusa/src/services/shipping-option.ts b/packages/medusa/src/services/shipping-option.ts
index f38abab81e..f9dba97b60 100644
--- a/packages/medusa/src/services/shipping-option.ts
+++ b/packages/medusa/src/services/shipping-option.ts
@@ -398,7 +398,7 @@ class ShippingOptionService extends TransactionBaseService {
       )
     }
 
-    const amount = option.includes_tax ? cart.total! : cart.subtotal!
+    const amount = option.includes_tax ? (cart.subtotal! + cart.item_tax_total!) : cart.subtotal!
 
     const requirementResults: boolean[] = option.requirements.map(
       (requirement) => {