This step-by-step guide details how Supplementary declarations, required after goods move, can be completed through TSS. This declaration is completed by the trader or their agent, and is the final stage of the simplified journey.
Updated: 27 October 2023
If you found this guide helpful, you may also be interested in:
Guidance on resolution to common error codes for Supplementary and Full Frontier Declarations
Data guide: TSS declaration data requirements
Checklist: Supplementary declarations
Webinar: How to complete your GB-NI Supplementary declarations on TSS: A step-by-step guide