# Adds metadata field on Tax Calculation line items ## What’s new Adds a metadata field for `line_items` on [Tax Calculations](https://docs.stripe.com/api/tax/calculations.md?api-version=2025-05-28.basil). This field is optional, and you can use it to store any arbitrary data that you want to associate with the line item. ## Impact You can now store arbitrary data on each line item. This change impacts users who use the Tax Calculation API to call the [create endpoint](https://docs.stripe.com/api/tax/calculations/create.md?api-version=2025-05-28.basil). ## Changes #### REST API | Parameter | Change | Resources or endpoints | | ---------- | ------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | `metadata` | Added | [Tax.Calculation#create.line_items[]](/api/tax/calculations/create?api-version=2025-05-28.basil#calculate_tax-line_items), [Tax.CalculationLineItem](/api/tax/calculations/object?api-version=2025-05-28.basil#tax_calculation_object-line_items) | #### Ruby | Parameter | Change | Resources or methods | | ---------- | ------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | `metadata` | Added | [Tax::Calculation::CreateParams::LineItem](/api/tax/calculations/create?api-version=2025-05-28.basil#calculate_tax-line_items), [Tax::CalculationLineItem](/api/tax/calculations/object?api-version=2025-05-28.basil#tax_calculation_object-line_items) | #### Python | Parameter | Change | Resources or methods | | ---------- | ------ | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | `metadata` | Added | [Tax.CalculationLineItem](/api/tax/calculations/object?api-version=2025-05-28.basil#tax_calculation_object-line_items), [tax.Calculation.CreateParamsLineItem](/api/tax/calculations/create?api-version=2025-05-28.basil#calculate_tax-line_items) | #### PHP | Parameter | Change | Resources or methods | | ---------- | ------ | ---------------------------------------------------------------------------------------------------------------------- | | `metadata` | Added | [Tax.CalculationLineItem](/api/tax/calculations/object?api-version=2025-05-28.basil#tax_calculation_object-line_items) | #### Java | Parameter | Change | Resources or methods | | ---------- | ------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | | `metadata` | Added | [tax.CalculationCreateParams.line_items[]](/api/tax/calculations/create?api-version=2025-05-28.basil#calculate_tax-line_items), [tax.CalculationLineItem](/api/tax/calculations/object?api-version=2025-05-28.basil#tax_calculation_object-line_items) | #### Node.js | Parameter | Change | Resources or methods | | ---------- | ------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | | `metadata` | Added | [Tax.CalculationCreateParams.line_items[]](/api/tax/calculations/create?api-version=2025-05-28.basil#calculate_tax-line_items), [Tax.CalculationLineItem](/api/tax/calculations/object?api-version=2025-05-28.basil#tax_calculation_object-line_items) | #### Go | Parameter | Change | Resources or methods | | ---------- | ------ | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | `Metadata` | Added | [TaxCalculationLineItem](/api/tax/calculations/object?api-version=2025-05-28.basil#tax_calculation_object-line_items), [TaxCalculationLineItemParams](/api/tax/calculations/create?api-version=2025-05-28.basil#calculate_tax-line_items) | #### .NET | Parameter | Change | Resources or methods | | ---------- | ------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | `Metadata` | Added | [Tax.CalculationLineItem](/api/tax/calculations/object?api-version=2025-05-28.basil#tax_calculation_object-line_items), [TaxCalculationLineItemOptions](/api/tax/calculations/create?api-version=2025-05-28.basil#calculate_tax-line_items) | ## 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: 2025-05-28.basil` 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 [v15.2.0](https://github.com/stripe/stripe-ruby/releases/tag/v15.2.0) 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 [v12.2.0](https://github.com/stripe/stripe-python/releases/tag/v12.2.0) 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 [v17.3.0](https://github.com/stripe/stripe-php/releases/tag/v17.3.0) 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 [v29.2.0](https://github.com/stripe/stripe-java/releases/tag/v29.2.0) 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 [v18.2.0](https://github.com/stripe/stripe-node/releases/tag/v18.2.0) 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 [v82.2.0](https://github.com/stripe/stripe-go/releases/tag/v82.2.0) 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 [v48.2.0](https://github.com/stripe/stripe-dotnet/releases/tag/v48.2.0) 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).