# Replaces top-level price fields with improved price modeling on Invoice Items and Invoice Line Items ## What’s new We’re introducing a new polymorphic `pricing` concept on [Invoice Items](https://docs.stripe.com/api/invoiceitems/object.md?api-version=2025-03-31.basil#invoiceitem_object-pricing) and [Invoice Line Items](https://docs.stripe.com/api/invoice-line-item/object.md?api-version=2025-03-31.basil#invoice_line_item_object-pricing). It contains all price-related data and unifies the structure of pricing objects ([Price](https://docs.stripe.com/api/prices/object.md?api-version=2025-03-31.basil) and [Plan](https://docs.stripe.com/api/plans/object.md?api-version=2025-03-31.basil)) to prepare for adding new pricing object types. We’re also moving unit amount data into `pricing`. ## Why is this a breaking change? - `price` and `plan` fields are no longer available on Invoice Items and Invoice Line Items. - Move `unit_amount` and `unit_amount_decimal` to the new `pricing` concept on Invoice Items and Invoice Line Items. ## Impact Replace all references to `price` or `plan` on Invoice Items or Invoice Line Items with the `pricing` field: - Instead of `invoice_item.price.id`, use `invoice_item.pricing.price_details.price` after verifying that `invoice_item.pricing.type` is `price_details` - When creating or updating Invoice Items, use the `pricing` parameter instead of `price` (for example, set `pricing.price` instead of passing the `price` parameter) - For unit amounts, use `pricing.unit_amount_decimal` instead of `unit_amount` or `unit_amount_decimal` - When creating or updating Invoice Items, use the `unit_amount_decimal` parameter instead of `unit_amount` ## Changes #### REST API | Parameters | Change | Resources or endpoints | | ----------------------------------------------------- | ------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | | `plan`, `price`, `unit_amount_decimal`, `unit_amount` | Removed | [InvoiceItem](/api/invoiceitems/object?api-version=2025-03-31.basil) | | `plan`, `price` | Removed | [InvoiceLineItem](/api/invoice-line-item?api-version=2025-03-31.basil) | | `pricing` | Added | [Invoice#add_lines.lines[]](/api/invoice-line-item/update?api-version=2025-03-31.basil), [Invoice#update_lines.lines[]](/api/invoices/update?api-version=2025-03-31.basil), [InvoiceItem#create](/api/invoiceitems/create?api-version=2025-03-31.basil), [InvoiceItem#update](/api/invoiceitems/update?api-version=2025-03-31.basil), [InvoiceLineItem#update](/api/invoice-line-item/update?api-version=2025-03-31.basil), [InvoiceItem](/api/invoiceitems/object?api-version=2025-03-31.basil), [InvoiceLineItem](/api/invoice-line-item?api-version=2025-03-31.basil) | | `price` | Removed | [Invoice#add_lines.lines[]](/api/invoice-line-item/update?api-version=2025-03-31.basil), [Invoice#update_lines.lines[]](/api/invoices/update?api-version=2025-03-31.basil), [InvoiceItem#create](/api/invoiceitems/create?api-version=2025-03-31.basil), [InvoiceItem#update](/api/invoiceitems/update?api-version=2025-03-31.basil), [InvoiceItem](/api/invoiceitems/object?api-version=2025-03-31.basil), [InvoiceLineItem#update](/api/invoice-line-item/update?api-version=2025-03-31.basil), [InvoiceLineItem](/api/invoice-line-item?api-version=2025-03-31.basil) | | `unit_amount` | Removed | [InvoiceItem#create](/api/invoiceitems/create?api-version=2025-03-31.basil), [InvoiceItem#update](/api/invoiceitems/update?api-version=2025-03-31.basil), [InvoiceItem](/api/invoiceitems/object?api-version=2025-03-31.basil) | #### Ruby This change does not affect the Ruby SDK. #### Python | Parameters | Change | Resources or methods | | ------------------------------ | ------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | `plan`, `price`, `unit_amount` | Removed | [stripe.InvoiceItem](/api/invoiceitems/object?api-version=2025-03-31.basil) | | `pricing` | Added | [Invoice.AddLinesParamsLine](/api/invoice-line-item/bulk?api-version=2025-03-31.basil#bulk_add_lines-lines), [Invoice.UpdateLinesParamsLine](/api/invoices/update?api-version=2025-03-31.basil), [InvoiceItem.CreateParams](/api/invoiceitems/create?api-version=2025-03-31.basil), [InvoiceItem.UpdateParams](/api/invoiceitems/update?api-version=2025-03-31.basil), [InvoiceLineItem.UpdateParams](/api/invoice-line-item/update?api-version=2025-03-31.basil), [InvoiceItem](/api/invoiceitems/object?api-version=2025-03-31.basil), [InvoiceLineItem](/api/invoice-line-item?api-version=2025-03-31.basil) | | `price` | Removed | [Invoice.AddLinesParamsLine](/api/invoice-line-item/bulk?api-version=2025-03-31.basil#bulk_add_lines-lines), [Invoice.UpdateLinesParamsLine](/api/invoices/update?api-version=2025-03-31.basil), [InvoiceItem.CreateParams](/api/invoiceitems/create?api-version=2025-03-31.basil), [InvoiceItem.UpdateParams](/api/invoiceitems/update?api-version=2025-03-31.basil), [InvoiceItem](/api/invoiceitems/object?api-version=2025-03-31.basil), [InvoiceLineItem.UpdateParams](/api/invoice-line-item/update?api-version=2025-03-31.basil), [InvoiceLineItem](/api/invoice-line-item?api-version=2025-03-31.basil) | | `unit_amount` | Removed | [InvoiceItem.CreateParams](/api/invoiceitems/create?api-version=2025-03-31.basil), [InvoiceItem.UpdateParams](/api/invoiceitems/update?api-version=2025-03-31.basil), [InvoiceItem](/api/invoiceitems/object?api-version=2025-03-31.basil), [stripe.InvoiceItem](/api/invoiceitems/object?api-version=2025-03-31.basil) | #### PHP | Parameters | Change | Resources or methods | | ----------------------------------------------------- | ------- | -------------------------------------------------------------------------------------------------------------------------------------------- | | `plan`, `price`, `unit_amount_decimal`, `unit_amount` | Removed | [InvoiceItem](/api/invoiceitems/object?api-version=2025-03-31.basil) | | `plan`, `price` | Removed | [InvoiceLineItem](/api/invoice-line-item?api-version=2025-03-31.basil) | | `pricing` | Added | [InvoiceItem](/api/invoiceitems/object?api-version=2025-03-31.basil), [InvoiceLineItem](/api/invoice-line-item?api-version=2025-03-31.basil) | #### Java | Parameters | Change | Resources or methods | | ----------------------------------------------------- | ------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | | `plan`, `price`, `unit_amount_decimal`, `unit_amount` | Removed | [InvoiceItem](/api/invoiceitems/object?api-version=2025-03-31.basil) | | `plan`, `price` | Removed | [InvoiceLineItem](/api/invoice-line-item?api-version=2025-03-31.basil) | | `pricing` | Added | [InvoiceAddLinesParams.lines[]](/api/invoice-line-item/bulk?api-version=2025-03-31.basil#bulk_add_lines-lines), [InvoiceItemCreateParams](/api/invoiceitems/create?api-version=2025-03-31.basil), [InvoiceItemUpdateParams](/api/invoiceitems/update?api-version=2025-03-31.basil), [InvoiceLineItemUpdateParams](/api/invoice-line-item/update?api-version=2025-03-31.basil), [InvoiceUpdateLinesParams.lines[]](/api/invoices/update?api-version=2025-03-31.basil), [InvoiceItem](/api/invoiceitems/object?api-version=2025-03-31.basil), [InvoiceLineItem](/api/invoice-line-item?api-version=2025-03-31.basil) | | `price` | Removed | [InvoiceAddLinesParams.lines[]](/api/invoice-line-item/bulk?api-version=2025-03-31.basil#bulk_add_lines-lines), [InvoiceItemCreateParams](/api/invoiceitems/create?api-version=2025-03-31.basil), [InvoiceItemUpdateParams](/api/invoiceitems/update?api-version=2025-03-31.basil), [InvoiceItem](/api/invoiceitems/object?api-version=2025-03-31.basil), [InvoiceLineItemUpdateParams](/api/invoice-line-item/update?api-version=2025-03-31.basil), [InvoiceLineItem](/api/invoice-line-item?api-version=2025-03-31.basil), [InvoiceUpdateLinesParams.lines[]](/api/invoices/update?api-version=2025-03-31.basil) | | `unitAmount` | Removed | [InvoiceItemCreateParams](/api/invoiceitems/create?api-version=2025-03-31.basil), [InvoiceItemUpdateParams](/api/invoiceitems/update?api-version=2025-03-31.basil), [InvoiceItem](/api/invoiceitems/object?api-version=2025-03-31.basil) | #### Node.js | Parameters | Change | Resources or methods | | ----------------------------------------------------- | ------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | | `plan`, `price`, `unit_amount_decimal`, `unit_amount` | Removed | [InvoiceItem](/api/invoiceitems/object?api-version=2025-03-31.basil) | | `plan`, `price` | Removed | [InvoiceLineItem](/api/invoice-line-item?api-version=2025-03-31.basil) | | `pricing` | Added | [InvoiceAddLinesParams.lines[]](/api/invoice-line-item/bulk?api-version=2025-03-31.basil#bulk_add_lines-lines), [InvoiceItemCreateParams](/api/invoiceitems/create?api-version=2025-03-31.basil), [InvoiceItemUpdateParams](/api/invoiceitems/update?api-version=2025-03-31.basil), [InvoiceLineItemUpdateParams](/api/invoice-line-item/update?api-version=2025-03-31.basil), [InvoiceUpdateLinesParams.lines[]](/api/invoices/update?api-version=2025-03-31.basil), [InvoiceItem](/api/invoiceitems/object?api-version=2025-03-31.basil), [InvoiceLineItem](/api/invoice-line-item?api-version=2025-03-31.basil) | | `price` | Removed | [InvoiceAddLinesParams.lines[]](/api/invoice-line-item/bulk?api-version=2025-03-31.basil#bulk_add_lines-lines), [InvoiceItemCreateParams](/api/invoiceitems/create?api-version=2025-03-31.basil), [InvoiceItemUpdateParams](/api/invoiceitems/update?api-version=2025-03-31.basil), [InvoiceItem](/api/invoiceitems/object?api-version=2025-03-31.basil), [InvoiceLineItemUpdateParams](/api/invoice-line-item/update?api-version=2025-03-31.basil), [InvoiceLineItem](/api/invoice-line-item?api-version=2025-03-31.basil), [InvoiceUpdateLinesParams.lines[]](/api/invoices/update?api-version=2025-03-31.basil) | | `unit_amount` | Removed | [InvoiceItemCreateParams](/api/invoiceitems/create?api-version=2025-03-31.basil), [InvoiceItemUpdateParams](/api/invoiceitems/update?api-version=2025-03-31.basil), [InvoiceItem](/api/invoiceitems/object?api-version=2025-03-31.basil) | #### Go | Parameters | Change | Resources or methods | | -------------------------------------------------- | ------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | | `Plan`, `Price`, `UnitAmountDecimal`, `UnitAmount` | Removed | [InvoiceItem](/api/invoiceitems/object?api-version=2025-03-31.basil) | | `Plan`, `Price` | Removed | [InvoiceLineItem](/api/invoice-line-item?api-version=2025-03-31.basil) | | `Pricing` | Added | [InvoiceAddLinesLinesParams](/api/invoice-line-item/bulk?api-version=2025-03-31.basil#bulk_add_lines-lines), [InvoiceItemParams](/api/invoiceitems?api-version=2025-03-31.basil), [InvoiceLineItemParams](/api/invoice-line-item?api-version=2025-03-31.basil), [InvoiceUpdateLinesLinesParams](/api/invoices/update?api-version=2025-03-31.basil), [InvoiceItem](/api/invoiceitems/object?api-version=2025-03-31.basil), [InvoiceLineItem](/api/invoice-line-item?api-version=2025-03-31.basil) | | `Price` | Removed | [InvoiceAddLinesLinesParams](/api/invoice-line-item/bulk?api-version=2025-03-31.basil#bulk_add_lines-lines), [InvoiceItemParams](/api/invoiceitems?api-version=2025-03-31.basil), [InvoiceItem](/api/invoiceitems/object?api-version=2025-03-31.basil), [InvoiceLineItemParams](/api/invoice-line-item?api-version=2025-03-31.basil), [InvoiceLineItem](/api/invoice-line-item?api-version=2025-03-31.basil), [InvoiceUpdateLinesLinesParams](/api/invoices/update?api-version=2025-03-31.basil) | | `UnitAmount` | Removed | [InvoiceItemParams](/api/invoiceitems?api-version=2025-03-31.basil), [InvoiceItem](/api/invoiceitems/object?api-version=2025-03-31.basil) | #### .NET | Parameters | Change | Resources or methods | | -------------------------------------------------- | ------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | | `Plan`, `Price`, `UnitAmountDecimal`, `UnitAmount` | Removed | [InvoiceItem](/api/invoiceitems/object?api-version=2025-03-31.basil) | | `Plan`, `Price` | Removed | [InvoiceLineItem](/api/invoice-line-item?api-version=2025-03-31.basil) | | `Pricing` | Added | [InvoiceItemCreateOptions](/api/invoiceitems/create?api-version=2025-03-31.basil), [InvoiceItemUpdateOptions](/api/invoiceitems/update?api-version=2025-03-31.basil), [InvoiceLineItemUpdateOptions](/api/invoice-line-item/update?api-version=2025-03-31.basil), [InvoiceLinesOptions](/api/invoice-line-item?api-version=2025-03-31.basil), [InvoiceItem](/api/invoiceitems/object?api-version=2025-03-31.basil), [InvoiceLineItem](/api/invoice-line-item?api-version=2025-03-31.basil) | | `Price` | Removed | [InvoiceItemCreateOptions](/api/invoiceitems/create?api-version=2025-03-31.basil), [InvoiceItemUpdateOptions](/api/invoiceitems/update?api-version=2025-03-31.basil), [InvoiceItem](/api/invoiceitems/object?api-version=2025-03-31.basil), [InvoiceLineItemUpdateOptions](/api/invoice-line-item/update?api-version=2025-03-31.basil), [InvoiceLineItem](/api/invoice-line-item?api-version=2025-03-31.basil), [InvoiceLinesOptions](/api/invoice-line-item?api-version=2025-03-31.basil) | | `UnitAmount` | Removed | [InvoiceItemCreateOptions](/api/invoiceitems/create?api-version=2025-03-31.basil), [InvoiceItemUpdateOptions](/api/invoiceitems/update?api-version=2025-03-31.basil), [InvoiceItem](/api/invoiceitems/object?api-version=2025-03-31.basil) | ## 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: 2025-03-31.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 [v15.0.0](https://github.com/stripe/stripe-ruby/releases/tag/v15.0.0) 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 [v12.0.0](https://github.com/stripe/stripe-python/releases/tag/v12.0.0) 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 [v17.0.0](https://github.com/stripe/stripe-php/releases/tag/v17.0.0) 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 [v29.0.0](https://github.com/stripe/stripe-java/releases/tag/v29.0.0) 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 [v18.0.0](https://github.com/stripe/stripe-node/releases/tag/v18.0.0) 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 [v82.0.0](https://github.com/stripe/stripe-go/releases/tag/v82.0.0) 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 [v48.0.0](https://github.com/stripe/stripe-dotnet/releases/tag/v48.0.0) 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). ## Related changes - [Replaces top-level tax-related properties with improved tax modeling on Invoices, Invoice Line Items, and Credit Note Line Items](https://docs.stripe.com/changelog/basil/2025-03-31/invoice-tax-configurations.md) - [Adds support for multiple (partial) payments on invoices](https://docs.stripe.com/changelog/basil/2025-03-31/add-support-for-multiple-partial-payments-on-invoices.md) - [Adds jurisdiction level and taxability reason to manual tax amounts on invoices](https://docs.stripe.com/changelog/basil/2025-03-31/invoice-manual-tax-amount-fields.md)