From 5df903f5fb52d1e37d13bfe72ed9c226c1eb46b4 Mon Sep 17 00:00:00 2001
From: Pepijn <pepijn@webbers.com>
Date: Tue, 21 Oct 2025 19:36:29 +0200
Subject: [PATCH] Added shipping method data to tax module context (#13747)

---
 .changeset/late-seals-mix.md                  |  6 +++++
 .../src/tax/steps/get-item-tax-lines.ts       |  6 +++++
 packages/core/types/src/tax/common.ts         | 25 +++++++++++++++++++
 3 files changed, 37 insertions(+)
 create mode 100644 .changeset/late-seals-mix.md

diff --git a/.changeset/late-seals-mix.md b/.changeset/late-seals-mix.md
new file mode 100644
index 0000000000..3b6cac40a9
--- /dev/null
+++ b/.changeset/late-seals-mix.md
@@ -0,0 +1,6 @@
+---
+"@medusajs/core-flows": patch
+"@medusajs/types": patch
+---
+
+Added shipping method data to tax module context
diff --git a/packages/core/core-flows/src/tax/steps/get-item-tax-lines.ts b/packages/core/core-flows/src/tax/steps/get-item-tax-lines.ts
index 03e4a5ba43..d1c9b583b6 100644
--- a/packages/core/core-flows/src/tax/steps/get-item-tax-lines.ts
+++ b/packages/core/core-flows/src/tax/steps/get-item-tax-lines.ts
@@ -91,6 +91,12 @@ function normalizeTaxModuleContext(
     },
     customer,
     is_return: isReturn ?? false,
+    shipping_methods: orderOrCart.shipping_methods?.map((method) => ({
+      id: method.id,
+      name: method.name,
+      shipping_option_id: method.shipping_option_id,
+      amount: method.amount,
+    })),
   }
 }
 
diff --git a/packages/core/types/src/tax/common.ts b/packages/core/types/src/tax/common.ts
index 609109fd54..db3016269f 100644
--- a/packages/core/types/src/tax/common.ts
+++ b/packages/core/types/src/tax/common.ts
@@ -490,6 +490,31 @@ export interface TaxCalculationContext {
    * Whether the tax lines are calculated for an order return.
    */
   is_return?: boolean
+
+  /**
+   * The shipping method details.
+   */
+  shipping_methods?: {
+    /**
+     * The associated shipping method's ID.
+     */
+    id: string
+
+    /**
+     * The name of the shipping method.
+     */
+    name: string
+
+    /**
+     * The associated shipping options's ID.
+     */
+    shipping_option_id: string
+
+    /**
+     * The amount of the shipping method.
+     */
+    amount: number
+  }[]
 }
 
 /**