v1
latestOpenAPI 3.0.32026-07-13105113.9 KBWithdraw Late Accounting Date Rule
Allows a customer to withdraw an election to disapply the automatic Late Accounting Date Rule treatment for a given tax year. This setting cannot be changed after finalisation (except when submitting post finalisation amendments) and will remain in place for 5 years. A National Insurance number, business ID and tax year must be provided.
Test data
Scenario simulation using Gov-Test-Scenario headers is only available in the sandbox environment.
| Header Value (Gov-Test-Scenario) | Scenario |
|---|---|
| N/A - DEFAULT | Simulates a successful response. |
| NOT_FOUND | Simulates the scenario where no data is found. |
| ELECTION_PERIOD_NOT_EXPIRED | Simulates the scenario where the existing status has not expired. |
| OUTSIDE_AMENDMENT_WINDOW | Simulates the scenario where request cannot be completed as it is outside the amendment window. |
| STATEFUL | Performs a stateful withdrawal. |
Path parameters
National Insurance number, in the format AA999999A
A unique identifier for the self-employment business. Property business IDs will return a 404. It must conform to the following regex: ^X[A-Z0-9]{1}IS[0-9]{11}$
The tax year the data applies to. The start year and end year must not span two tax years. The minimum tax year is 2025-26. No gaps are allowed, for example, 2025-27 is not valid. (The minimum tax year in Sandbox is 2024-25.)
Headers
Specifies the response format and the version of the API to be used.
An OAuth 2.0 Bearer Token with the write:self-assessment scope.
Only in sandbox environment. See Test Data table for all header values.
Response
No Content