---
title: "Changes to Platform Calculation"
method: POST
path: "/tax/platform/calculations"
---

# Changes to Platform Calculation

`POST /tax/platform/calculations`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 1 of 2 revisions.

- **2026-11-03** `f4650eaed11f`: 3 breaking, 5 warning, 16 info

## Changes

- **2026-11-03** `f4650eaed11f`: 3 breaking, 5 warning, 16 info
  - removed the enum value `2026-01-01` from the `header` request parameter `X-API-Version`
  - added `#/components/schemas/MerchantNotFoundError, #/components/schemas/CustomerNotFoundError` to the response body `oneOf` list for the response status `404`
  - the response's body type changed from `object` to no type for status `404`
  - removed the optional property `code` from the response with the `404` status
  - removed the optional property `error` from the response with the `400` status
  - removed the optional property `message` from the response with the `404` status
  - removed the optional property `request_id` from the response with the `400` status
  - removed the optional property `type` from the response with the `404` status
  - api operation id `platformCalculation_v20260101` removed and replaced with `platformCalculation_v20260301`
  - added the new optional request property `customer/id`
  - added the new optional request property `customer/ip`
  - added the new optional request property `default_customer_type`
  - added the new optional request property `transacted_at`
  - added the new enum value `2026-03-01` to the `header` request parameter `X-API-Version`
  - the request property `customer/address` became optional
  - the request property `fee_details/automatic_tax` with a default value became required
  - the request property `order_details/automatic_tax` with a default value became required
  - added the non-success response with the status `422`
  - added the optional property `address_used` to the response with the `200` status
  - added the optional property `location_source` to the response with the `200` status
  - added the optional property `resolution_precision` to the response with the `200` status
  - added the required property `code` to the response with the `400` status
  - added the required property `message` to the response with the `400` status
  - added the required property `type` to the response with the `400` status

---

[Operation](https://skmtc.dev/numeral-com/apis/numeral-api/docs/tax/platform/calculations/post.md) - [API](https://skmtc.dev/numeral-com/apis/numeral-api.md) - [Page](https://skmtc.dev/numeral-com/apis/numeral-api/changes/tax/platform/calculations/post)