# 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.
2. 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`
3. Upgrade the API version used for [webhook endpoints](https://docs.stripe.com/webhooks/versioning.md).
4. [Test your integration](https://docs.stripe.com/testing.md) against the new version.
5. If you use Connect, [test your Connect integration](https://docs.stripe.com/connect/testing.md).
6. 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.
2. Upgrade your Ruby SDK to [v15.2.0](https://github.com/stripe/stripe-ruby/releases/tag/v15.2.0)
3. Upgrade the API version used for [webhook endpoints](https://docs.stripe.com/webhooks/versioning.md).
4. [Test your integration](https://docs.stripe.com/testing.md) against the new version.
5. If you use Connect, [test your Connect integration](https://docs.stripe.com/connect/testing.md).
6. 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.
2. Upgrade your Python SDK to [v12.2.0](https://github.com/stripe/stripe-python/releases/tag/v12.2.0)
3. Upgrade the API version used for [webhook endpoints](https://docs.stripe.com/webhooks/versioning.md).
4. [Test your integration](https://docs.stripe.com/testing.md) against the new version.
5. If you use Connect, [test your Connect integration](https://docs.stripe.com/connect/testing.md).
6. 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.
2. Upgrade your PHP SDK to [v17.3.0](https://github.com/stripe/stripe-php/releases/tag/v17.3.0)
3. Upgrade the API version used for [webhook endpoints](https://docs.stripe.com/webhooks/versioning.md).
4. [Test your integration](https://docs.stripe.com/testing.md) against the new version.
5. If you use Connect, [test your Connect integration](https://docs.stripe.com/connect/testing.md).
6. 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.
2. Upgrade your Java SDK to [v29.2.0](https://github.com/stripe/stripe-java/releases/tag/v29.2.0)
3. Upgrade the API version used for [webhook endpoints](https://docs.stripe.com/webhooks/versioning.md).
4. [Test your integration](https://docs.stripe.com/testing.md) against the new version.
5. If you use Connect, [test your Connect integration](https://docs.stripe.com/connect/testing.md).
6. 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.
2. Upgrade your Node SDK to [v18.2.0](https://github.com/stripe/stripe-node/releases/tag/v18.2.0)
3. Upgrade the API version used for [webhook endpoints](https://docs.stripe.com/webhooks/versioning.md).
4. [Test your integration](https://docs.stripe.com/testing.md) against the new version.
5. If you use Connect, [test your Connect integration](https://docs.stripe.com/connect/testing.md).
6. 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.
2. Upgrade your Go SDK to [v82.2.0](https://github.com/stripe/stripe-go/releases/tag/v82.2.0)
3. Upgrade the API version used for [webhook endpoints](https://docs.stripe.com/webhooks/versioning.md).
4. [Test your integration](https://docs.stripe.com/testing.md) against the new version.
5. If you use Connect, [test your Connect integration](https://docs.stripe.com/connect/testing.md).
6. 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.
2. Upgrade your .NET SDK to [v48.2.0](https://github.com/stripe/stripe-dotnet/releases/tag/v48.2.0)
3. Upgrade the API version used for [webhook endpoints](https://docs.stripe.com/webhooks/versioning.md).
4. [Test your integration](https://docs.stripe.com/testing.md) against the new version.
5. If you use Connect, [test your Connect integration](https://docs.stripe.com/connect/testing.md).
6. 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).