HMRC Advise of CDS Downtime Scheduled for 29th April, 2026

BY:

Gail Leeson
23 April 2026

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HMRC have advised that the Customs Declaration Service (CDS) will be unavailable to users for scheduled maintenance as follows: Wednesday 29th April 21:30 until 23.00.

Declarations should not be submitted during the outage period.



HMRC also advise that the creation, updating, or embarking a goods movement reference (GMR) during this time might be affected.


Users are advised that only pre-lodged goods declarations attached to a GMR will be permitted to move via the Goods Vehicle Movement Service (GVMS).


CDS downtime affecting GVMS movements will require attention to the following:


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