CTC Guarantee Balance API
|Version and status|
|Available in Sandbox||Yes|
|Sandbox base URL||https://test-api.service.hmrc.gov.uk|
|Available in Production||Yes|
|Production base URL||https://api.service.hmrc.gov.uk|
Use the CTC Guarantee Balance API to provide traders with up-to-date information about how much of their guarantee funds they have left to use when organising transit movements.
The API endpoints relate only to Great Britain and Northern Ireland.
You can also use the HMRC sandbox environment to run tests for Great Britain and Northern Ireland transit movements.
Version 1.0 of the API supports only NCTS phase 4. Version 2.0 of the API supports only NCTS phase 5.
For a detailed overview of v1.0 of the API, see CTC Guarantee Balance API phase 4 service guide. For a detailed overview of v2.0 of the API, see CTC Guarantee Balance API phase 5 service guide.
You can find the changelog for v2.0 of the API in the common-transit-convention-guarantee-balance GitHub wiki.
The way we show CTC Guarantee Balance API v1.0 endpoints has changed, which might look different to other Developer Hub APIs.
The API has not changed. You do not need to make any updates to your application if you already use this API.