# Adds support for posting time on tax transaction creation

## What’s new

Lets you specify and retrieve the posting time when creating a tax transaction.

## Impact

This improves your ability to accurately record liability for tax reporting within correct periods.

## Changes

#### REST API

| Parameter | Change | Resources or endpoints |
| --- | --- | --- |
| `posted_at` | Added | [Tax.Transaction#create_from_calculation](/api/tax/transactions/create_from_calculation?api-version=2024-09-30.acacia), [Tax.Transaction](/api/tax/transactions/object?api-version=2024-09-30.acacia) |

#### Ruby

This change does not affect the Ruby SDK.

#### Python

| Parameter | Change | Resources or methods |
| --- | --- | --- |
| `posted_at` | Added | [stripe.tax.Transaction.CreateFromCalculationParams](/api/tax/transactions/create_from_calculation?api-version=2024-09-30.acacia), [stripe.tax.Transaction](/api/tax/transactions/object?api-version=2024-09-30.acacia) |

#### PHP

| Parameter | Change | Resources or methods |
| --- | --- | --- |
| `posted_at` | Added | [Tax.Transaction](/api/tax/transactions/object?api-version=2024-09-30.acacia) |

#### Java

| Parameter | Change | Resources or methods |
| --- | --- | --- |
| `posted_at` | Added | [Tax.Transaction](/api/tax/transactions/object?api-version=2024-09-30.acacia), [tax.TransactionCreateFromCalculationParams](/api/tax/transactions/create_from_calculation?api-version=2024-09-30.acacia) |

#### Node.js

| Parameter | Change | Resources or methods |
| --- | --- | --- |
| `posted_at` | Added | [Tax.TransactionCreateFromCalculationParams](/api/tax/transactions/create_from_calculation?api-version=2024-09-30.acacia), [Tax.Transaction](/api/tax/transactions/object?api-version=2024-09-30.acacia) |

#### Go

| Parameter | Change | Resources or methods |
| --- | --- | --- |
| `PostedAt` | Added | [TaxTransactionCreateFromCalculationParams](/api/tax/transactions/create_from_calculation?api-version=2024-09-30.acacia), [TaxTransaction](/api/tax/transactions/object?api-version=2024-09-30.acacia) |

#### .NET

| Parameter | Change | Resources or methods |
| --- | --- | --- |
| `PostedAt` | Added | [Tax.TransactionCreateFromCalculationOptions](/api/tax/transactions/create_from_calculation?api-version=2024-09-30.acacia), [TaxTransaction](/api/tax/transactions/object?api-version=2024-09-30.acacia) |

## 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: 2024-09-30.acacia`
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 [v13.0.0](https://github.com/stripe/stripe-ruby/releases/tag/v13.0.0)
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 [v11.0.0](https://github.com/stripe/stripe-python/releases/tag/v11.0.0)
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 [v16.0.0](https://github.com/stripe/stripe-php/releases/tag/v16.0.0)
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 [v27.0.0](https://github.com/stripe/stripe-java/releases/tag/v27.0.0)
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 [v17.0.0](https://github.com/stripe/stripe-node/releases/tag/v17.0.0)
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 [v80.0.0](https://github.com/stripe/stripe-go/releases/tag/v80.0.0)
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 [v46.0.0](https://github.com/stripe/stripe-dotnet/releases/tag/v46.0.0)
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).

## Related changes

- [Adds support for tax settings and registrations for Embedded Components](https://docs.stripe.com/changelog/acacia/2024-09-30/tax-registrations-settings-embedded-components.md)
- [Adds new method to retrieve a Tax Calculation](https://docs.stripe.com/changelog/acacia/2024-09-30/retrieves-tax-calculation-api.md)
- [Adds support for specifying US state sales tax elections while creating tax registrations](https://docs.stripe.com/changelog/acacia/2024-09-30/support-us-state-sales-tax-elections-api.md)