# Adds support for Polish NIP tax ID type ## What’s new Adds support for the Polish NIP (Numer Identyfikacji Podatkowej) tax ID type with the value `pl_nip`. You can now specify `pl_nip` as a [type](https://docs.stripe.com/api/tax_ids/create.md?api-version=2026-01-28.preview#create_tax_id-type) when you [create a tax ID](https://docs.stripe.com/api/tax_ids/create.md?api-version=2026-01-28.preview) for customers. The Polish NIP tax ID type is also available in the Dashboard’s **tax ID** selector for Checkout, invoices, and customer profiles. The Polish NIP is a 10-digit tax identification number used by businesses and individuals in Poland for tax purposes. Stripe validates the format and structure of Polish NIP tax IDs to ensure compliance with Polish tax regulations. ## Impact You can collect and store Polish NIP tax identification numbers for your customers based in Poland. This enables better tax compliance for businesses operating in Poland or serving Polish customers. If you’re using the Dashboard to manage customer tax information or create invoices, the Polish NIP option appears in the tax ID type dropdown selector. ## Changes #### REST API | Value | Change | Enums | | -------- | ------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | `pl_nip` | Added | [Checkout.Session.customer_details.tax_ids[]](/api/checkout/sessions/object?api-version=2026-01-28.clover#checkout_session_object-customer_details-tax_ids-type), [Invoice.customer_tax_ids[]](/api/checkout/sessions/object?api-version=2026-01-28.clover#checkout_session_object-customer_tax_ids-type), [Tax.Calculation.customer_details.tax_ids[]](/api/checkout/sessions/object?api-version=2026-01-28.clover#checkout_session_object-customer_details-tax_ids-type), [Tax.Transaction.customer_details.tax_ids[]](/api/checkout/sessions/object?api-version=2026-01-28.clover#checkout_session_object-customer_details-tax_ids-type), [TaxId](/api/checkout/sessions/object?api-version=2026-01-28.clover#checkout_session_object-type), [Customer#create.tax_id_data[]](/api/customers/create?api-version=2026-01-28.clover#create_customer-tax_id_data-type), [Invoice#create_preview.customer_details.tax_ids[]](/api/customers/create?api-version=2026-01-28.clover#create_customer-customer_details-tax_ids-type), [Tax.Calculation#create.customer_details.tax_ids[]](/api/customers/create?api-version=2026-01-28.clover#create_customer-customer_details-tax_ids-type), [TaxId#create](/api/customers/create?api-version=2026-01-28.clover#create_customer-type) | #### Ruby This change does not affect the Ruby SDK. #### Python | Value | Change | Enums | | -------- | ------ | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | `pl_nip` | Added | [Checkout.Session.CustomerDetail.TaxId](/api/checkout/sessions/object?api-version=2026-01-28.clover#checkout_session_object-customer_details-tax_ids-type), [Invoice.CustomerTaxId](/api/checkout/sessions/object?api-version=2026-01-28.clover#checkout_session_object-customer_tax_ids-type), [Tax.Calculation.CustomerDetail.TaxId](/api/checkout/sessions/object?api-version=2026-01-28.clover#checkout_session_object-customer_details-tax_ids-type), [Tax.Transaction.CustomerDetail.TaxId](/api/checkout/sessions/object?api-version=2026-01-28.clover#checkout_session_object-customer_details-tax_ids-type), [TaxId](/api/checkout/sessions/object?api-version=2026-01-28.clover#checkout_session_object-type), [CustomerCreateParamsTaxIdDatum](/api/customers/create?api-version=2026-01-28.clover#create_customer-tax_id_data-type), [CustomerCreateTaxIdParams](/api/customers/create?api-version=2026-01-28.clover#create_customer-type), [InvoiceCreatePreviewParamsCustomerDetailTaxId](/api/customers/create?api-version=2026-01-28.clover#create_customer-customer_details-tax_ids-type), [tax.CalculationCreateParamsCustomerDetailTaxId](/api/customers/create?api-version=2026-01-28.clover#create_customer-customer_details-tax_ids-type), [TaxIdCreateParams](/api/customers/create?api-version=2026-01-28.clover#create_customer-type) | #### PHP | Value | Change | Enums | | -------- | ------ | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | `pl_nip` | Added | [Checkout.Session.customer_details.tax_ids[]](/api/checkout/sessions/object?api-version=2026-01-28.clover#checkout_session_object-customer_details-tax_ids-type), [Invoice.customer_tax_ids[]](/api/checkout/sessions/object?api-version=2026-01-28.clover#checkout_session_object-customer_tax_ids-type), [Tax.Calculation.customer_details.tax_ids[]](/api/checkout/sessions/object?api-version=2026-01-28.clover#checkout_session_object-customer_details-tax_ids-type), [Tax.Transaction.customer_details.tax_ids[]](/api/checkout/sessions/object?api-version=2026-01-28.clover#checkout_session_object-customer_details-tax_ids-type), [TaxId](/api/checkout/sessions/object?api-version=2026-01-28.clover#checkout_session_object-type) | #### Java | Value | Change | Enums | | -------- | ------ | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | `pl_nip` | Added | [CustomerCreateParams.tax_id_data[]](/api/customers/create?api-version=2026-01-28.clover#create_customer-tax_id_data-type), [TaxIdCreateParams](/api/customers/create?api-version=2026-01-28.clover#create_customer-type), [InvoiceCreatePreviewParams.customer_details.tax_ids[]](/api/customers/create?api-version=2026-01-28.clover#create_customer-customer_details-tax_ids-type), [tax.CalculationCreateParams.customer_details.tax_ids[]](/api/customers/create?api-version=2026-01-28.clover#create_customer-customer_details-tax_ids-type) | #### Node.js | Value | Change | Enums | | -------- | ------ | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | `pl_nip` | Added | [Checkout.Session.customer_details.tax_ids[]](/api/checkout/sessions/object?api-version=2026-01-28.clover#checkout_session_object-customer_details-tax_ids-type), [Invoice.customer_tax_ids[]](/api/checkout/sessions/object?api-version=2026-01-28.clover#checkout_session_object-customer_tax_ids-type), [Tax.Calculation.customer_details.tax_ids[]](/api/checkout/sessions/object?api-version=2026-01-28.clover#checkout_session_object-customer_details-tax_ids-type), [Tax.Transaction.customer_details.tax_ids[]](/api/checkout/sessions/object?api-version=2026-01-28.clover#checkout_session_object-customer_details-tax_ids-type), [TaxId](/api/checkout/sessions/object?api-version=2026-01-28.clover#checkout_session_object-type), [CustomerCreateParams.tax_id_data[]](/api/customers/create?api-version=2026-01-28.clover#create_customer-tax_id_data-type), [CustomerCreateTaxIdParams](/api/customers/create?api-version=2026-01-28.clover#create_customer-type), [InvoiceCreatePreviewParams.customer_details.tax_ids[]](/api/customers/create?api-version=2026-01-28.clover#create_customer-customer_details-tax_ids-type), [Tax.CalculationCreateParams.customer_details.tax_ids[]](/api/customers/create?api-version=2026-01-28.clover#create_customer-customer_details-tax_ids-type), [TaxIdCreateParams](/api/customers/create?api-version=2026-01-28.clover#create_customer-type) | #### Go | Value | Change | Enums | | -------- | ------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | | `pl_nip` | Added | [CheckoutSessionCustomerDetailsTaxIds](/api/checkout/sessions/object?api-version=2026-01-28.clover#checkout_session_object-customer_details-tax_ids-Type), [TaxCalculationCustomerDetailsTaxId](/api/checkout/sessions/object?api-version=2026-01-28.clover#checkout_session_object-customer_details-tax_ids-Type), [TaxTransactionCustomerDetailsTaxId](/api/checkout/sessions/object?api-version=2026-01-28.clover#checkout_session_object-customer_details-tax_ids-Type), [TaxId](/api/checkout/sessions/object?api-version=2026-01-28.clover#checkout_session_object-Type) | #### .NET This change does not affect the .NET SDK. ## 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: 2026-01-28.clover` 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 [v18.2.0](https://github.com/stripe/stripe-ruby/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). #### 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 [v14.2.0](https://github.com/stripe/stripe-python/releases/tag/v14.2.0) 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 [v19.2.0](https://github.com/stripe/stripe-php/releases/tag/v19.2.0) 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). #### 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 [v31.2.0](https://github.com/stripe/stripe-java/releases/tag/v31.2.0) 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 [v20.2.0](https://github.com/stripe/stripe-node/releases/tag/v20.2.0) 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 [v84.2.0](https://github.com/stripe/stripe-go/releases/tag/v84.2.0) 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 [v50.2.0](https://github.com/stripe/stripe-dotnet/releases/tag/v50.2.0) 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).