The new Customs Declaration Service (CDS)

The new Customs Declaration Service (CDS) is being introduced in order to handle declarations under the Union Customs Code. It will replace CHIEF, which has been running for more than 25 years.

This page will keep you up to date with the HMRC development and rollout of the new system as well as our progress towards CDS.


CDS Release 4.9.0.1 - Guidance for traders
8 Oct 2025
CDS - Technical - Traders must declare an Additional Information code on NI declarations
2 Oct 2025
Update on Proposed Changes to Document Status Codes for CHED Document Codes
2 Oct 2025
CDS Release 4.9.0 rejection notification issue: guidance on individual EU member state declaration submission
2 Oct 2025
CDS Release 4.9.0 - Important Guidance for traders
17 Sep 2025
CERTEX Transition for Northern Ireland Import Declarations - 15th September 2025
18 Aug 2025
CDS Release 4.8.0.2 - Important information for traders
22 Jul 2025
Delay to the implementation of CERTEX
25 Jun 2025
HMRC updated guidance on GVMS exports via Motis and Stop24 and what happens after 27 June
24 Jun 2025
CERTEX Trader Notifications
23 Jun 2025