# Adds support for automatic surcharge calculations on Checkout Sessions ## What’s new Adds support for automatic surcharge calculations on [Checkout Sessions](https://docs.stripe.com/api/checkout/sessions.md?api-version=2026-04-22.preview). When you set [automatic_surcharge.enabled](https://docs.stripe.com/api/checkout/sessions/create.md?api-version=2026-04-22.preview#create_checkout_session-automatic_surcharge-enabled) to `true`, Stripe calculates a surcharge after the customer provides their payment details and billing address. ## Impact You can now collect surcharge fees when using Checkout Sessions. A surcharge is a fee added to a transaction to offset payment processing costs. It’s typically a percentage of the order amount you charge customers when they use certain payment methods (primarily credit cards). ## Changes #### REST API | Parameters | Change | Resources or endpoints | | --------------------- | ------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | `automatic_surcharge` | Added | [Checkout.Session](/api/checkout/sessions/object?api-version=2026-04-22.preview#checkout_session_object), [Checkout.Session#create](/api/checkout/sessions/create?api-version=2026-04-22.preview#create_checkout_session) | | `surcharge_cost` | Added | [Checkout.Session](/api/checkout/sessions/object?api-version=2026-04-22.preview#checkout_session_object) | | `amount_surcharge` | Added | [Checkout.Session.total_details](/api/checkout/sessions/object?api-version=2026-04-22.preview#checkout_session_object-total_details) | #### Ruby | Parameters | Change | Resources or methods | | --------------------- | ------ | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | `automatic_surcharge` | Added | [Checkout::Session](/api/checkout/sessions/object?api-version=2026-04-22.preview#checkout_session_object), [Checkout::SessionCreateParams](/api/checkout/sessions/create?api-version=2026-04-22.preview#create_checkout_session) | | `surcharge_cost` | Added | [Checkout::Session](/api/checkout/sessions/object?api-version=2026-04-22.preview#checkout_session_object) | | `amount_surcharge` | Added | [Checkout::Session::TotalDetail](/api/checkout/sessions/object?api-version=2026-04-22.preview#checkout_session_object-total_details) | #### Python | Parameters | Change | Resources or methods | | --------------------- | ------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | | `automatic_surcharge` | Added | [Checkout.Session](/api/checkout/sessions/object?api-version=2026-04-22.preview#checkout_session_object), [checkout.SessionCreateParams](/api/checkout/sessions/create?api-version=2026-04-22.preview#create_checkout_session) | | `surcharge_cost` | Added | [Checkout.Session](/api/checkout/sessions/object?api-version=2026-04-22.preview#checkout_session_object) | | `amount_surcharge` | Added | [Checkout.Session.TotalDetail](/api/checkout/sessions/object?api-version=2026-04-22.preview#checkout_session_object-total_details) | #### PHP | Parameters | Change | Resources or methods | | --------------------- | ------ | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | `automatic_surcharge` | Added | [Checkout.Session](/api/checkout/sessions/object?api-version=2026-04-22.preview#checkout_session_object), [Checkout\Session.create().$params](/api/checkout/sessions/create?api-version=2026-04-22.preview#create_checkout_session) | | `surcharge_cost` | Added | [Checkout.Session](/api/checkout/sessions/object?api-version=2026-04-22.preview#checkout_session_object) | | `amount_surcharge` | Added | [Checkout.Session.total_details](/api/checkout/sessions/object?api-version=2026-04-22.preview#checkout_session_object-total_details) | #### Java | Parameters | Change | Resources or methods | | -------------------- | ------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | | `automaticSurcharge` | Added | [checkout.Session](/api/checkout/sessions/object?api-version=2026-04-22.preview#checkout_session_object), [checkout.SessionCreateParams](/api/checkout/sessions/create?api-version=2026-04-22.preview#create_checkout_session) | | `surchargeCost` | Added | [checkout.Session](/api/checkout/sessions/object?api-version=2026-04-22.preview#checkout_session_object) | | `amountSurcharge` | Added | [checkout.Session.total_details](/api/checkout/sessions/object?api-version=2026-04-22.preview#checkout_session_object-total_details) | #### Node.js | Parameters | Change | Resources or methods | | --------------------- | ------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | | `automatic_surcharge` | Added | [Checkout.Session](/api/checkout/sessions/object?api-version=2026-04-22.preview#checkout_session_object), [Checkout.SessionCreateParams](/api/checkout/sessions/create?api-version=2026-04-22.preview#create_checkout_session) | | `surcharge_cost` | Added | [Checkout.Session](/api/checkout/sessions/object?api-version=2026-04-22.preview#checkout_session_object) | | `amount_surcharge` | Added | [Checkout.Session.total_details](/api/checkout/sessions/object?api-version=2026-04-22.preview#checkout_session_object-total_details) | #### Go | Parameters | Change | Resources or methods | | -------------------- | ------ | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | `AutomaticSurcharge` | Added | [CheckoutSession](/api/checkout/sessions/object?api-version=2026-04-22.preview#checkout_session_object), [CheckoutSessionParams](/api/checkout/sessions/create?api-version=2026-04-22.preview#create_checkout_session) | | `SurchargeCost` | Added | [CheckoutSession](/api/checkout/sessions/object?api-version=2026-04-22.preview#checkout_session_object) | | `AmountSurcharge` | Added | [CheckoutSessionTotalDetails](/api/checkout/sessions/object?api-version=2026-04-22.preview#checkout_session_object-total_details) | #### .NET | Parameters | Change | Resources or methods | | -------------------- | ------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | `AutomaticSurcharge` | Added | [Checkout.Session](/api/checkout/sessions/object?api-version=2026-04-22.preview#checkout_session_object), [Checkout.SessionCreateOptions](/api/checkout/sessions/create?api-version=2026-04-22.preview#create_checkout_session) | | `SurchargeCost` | Added | [Checkout.Session](/api/checkout/sessions/object?api-version=2026-04-22.preview#checkout_session_object) | | `AmountSurcharge` | Added | [Checkout.Session.TotalDetails](/api/checkout/sessions/object?api-version=2026-04-22.preview#checkout_session_object-total_details) | ## Upgrade #### REST API 1. [View your current API version](https://docs.stripe.com/upgrades.md#view-your-api-version-and-the-latest-available-upgrade-in-workbench) in Workbench. 1. If you use an SDK, upgrade to the corresponding SDK version for this API version. - If you don’t use an SDK, update your [API requests](https://docs.stripe.com/api/versioning.md) to include `Stripe-Version: 2026-04-22.preview` 1. Upgrade the API version used for [webhook endpoints](https://docs.stripe.com/webhooks/versioning.md). 1. [Test your integration](https://docs.stripe.com/testing.md) against the new version. 1. If you use Connect, [test your Connect integration](https://docs.stripe.com/connect/testing.md). 1. In Workbench, [perform the upgrade](https://docs.stripe.com/upgrades.md#perform-the-upgrade). You can [roll back the version](https://docs.stripe.com/upgrades.md#roll-back-your-api-version) for 72 hours. Learn more about [Stripe API upgrades](https://docs.stripe.com/upgrades.md). #### Ruby 1. [View your current API version](https://docs.stripe.com/upgrades.md#view-your-api-version-and-the-latest-available-upgrade-in-workbench) in Workbench. 1. Upgrade your Ruby SDK to the latest version. 1. Upgrade the API version used for [webhook endpoints](https://docs.stripe.com/webhooks/versioning.md). 1. [Test your integration](https://docs.stripe.com/testing.md) against the new version. 1. If you use Connect, [test your Connect integration](https://docs.stripe.com/connect/testing.md). 1. In Workbench, [perform the upgrade](https://docs.stripe.com/upgrades.md#perform-the-upgrade). You can [roll back the version](https://docs.stripe.com/upgrades.md#roll-back-your-api-version) for 72 hours. Learn more about [Stripe API upgrades](https://docs.stripe.com/upgrades.md). #### Python 1. [View your current API version](https://docs.stripe.com/upgrades.md#view-your-api-version-and-the-latest-available-upgrade-in-workbench) in Workbench. 1. Upgrade your Python SDK to the latest version. 1. Upgrade the API version used for [webhook endpoints](https://docs.stripe.com/webhooks/versioning.md). 1. [Test your integration](https://docs.stripe.com/testing.md) against the new version. 1. If you use Connect, [test your Connect integration](https://docs.stripe.com/connect/testing.md). 1. In Workbench, [perform the upgrade](https://docs.stripe.com/upgrades.md#perform-the-upgrade). You can [roll back the version](https://docs.stripe.com/upgrades.md#roll-back-your-api-version) for 72 hours. Learn more about [Stripe API upgrades](https://docs.stripe.com/upgrades.md). #### PHP 1. [View your current API version](https://docs.stripe.com/upgrades.md#view-your-api-version-and-the-latest-available-upgrade-in-workbench) in Workbench. 1. Upgrade your PHP SDK to the latest version. 1. Upgrade the API version used for [webhook endpoints](https://docs.stripe.com/webhooks/versioning.md). 1. [Test your integration](https://docs.stripe.com/testing.md) against the new version. 1. If you use Connect, [test your Connect integration](https://docs.stripe.com/connect/testing.md). 1. In Workbench, [perform the upgrade](https://docs.stripe.com/upgrades.md#perform-the-upgrade). You can [roll back the version](https://docs.stripe.com/upgrades.md#roll-back-your-api-version) for 72 hours. Learn more about [Stripe API upgrades](https://docs.stripe.com/upgrades.md). #### Java 1. [View your current API version](https://docs.stripe.com/upgrades.md#view-your-api-version-and-the-latest-available-upgrade-in-workbench) in Workbench. 1. Upgrade your Java SDK to the latest version. 1. Upgrade the API version used for [webhook endpoints](https://docs.stripe.com/webhooks/versioning.md). 1. [Test your integration](https://docs.stripe.com/testing.md) against the new version. 1. If you use Connect, [test your Connect integration](https://docs.stripe.com/connect/testing.md). 1. In Workbench, [perform the upgrade](https://docs.stripe.com/upgrades.md#perform-the-upgrade). You can [roll back the version](https://docs.stripe.com/upgrades.md#roll-back-your-api-version) for 72 hours. Learn more about [Stripe API upgrades](https://docs.stripe.com/upgrades.md). #### Node.js 1. [View your current API version](https://docs.stripe.com/upgrades.md#view-your-api-version-and-the-latest-available-upgrade-in-workbench) in Workbench. 1. Upgrade your Node SDK to the latest version. 1. Upgrade the API version used for [webhook endpoints](https://docs.stripe.com/webhooks/versioning.md). 1. [Test your integration](https://docs.stripe.com/testing.md) against the new version. 1. If you use Connect, [test your Connect integration](https://docs.stripe.com/connect/testing.md). 1. In Workbench, [perform the upgrade](https://docs.stripe.com/upgrades.md#perform-the-upgrade). You can [roll back the version](https://docs.stripe.com/upgrades.md#roll-back-your-api-version) for 72 hours. Learn more about [Stripe API upgrades](https://docs.stripe.com/upgrades.md). #### Go 1. [View your current API version](https://docs.stripe.com/upgrades.md#view-your-api-version-and-the-latest-available-upgrade-in-workbench) in Workbench. 1. Upgrade your Go SDK to the latest version. 1. Upgrade the API version used for [webhook endpoints](https://docs.stripe.com/webhooks/versioning.md). 1. [Test your integration](https://docs.stripe.com/testing.md) against the new version. 1. If you use Connect, [test your Connect integration](https://docs.stripe.com/connect/testing.md). 1. In Workbench, [perform the upgrade](https://docs.stripe.com/upgrades.md#perform-the-upgrade). You can [roll back the version](https://docs.stripe.com/upgrades.md#roll-back-your-api-version) for 72 hours. Learn more about [Stripe API upgrades](https://docs.stripe.com/upgrades.md). #### .NET 1. [View your current API version](https://docs.stripe.com/upgrades.md#view-your-api-version-and-the-latest-available-upgrade-in-workbench) in Workbench. 1. Upgrade your .NET SDK to the latest version. 1. Upgrade the API version used for [webhook endpoints](https://docs.stripe.com/webhooks/versioning.md). 1. [Test your integration](https://docs.stripe.com/testing.md) against the new version. 1. If you use Connect, [test your Connect integration](https://docs.stripe.com/connect/testing.md). 1. In Workbench, [perform the upgrade](https://docs.stripe.com/upgrades.md#perform-the-upgrade). You can [roll back the version](https://docs.stripe.com/upgrades.md#roll-back-your-api-version) for 72 hours. Learn more about [Stripe API upgrades](https://docs.stripe.com/upgrades.md).