CDS Release 4.8.0 to Impact on NCTS Weekend of 14th and 15th June 2025

BY:

Niamh O'Connor
11 June 2025

SHARE:

HMRC has advised that the planned release of CDS version 4.8.0 will impact the New Computerised Transit System (NCTS), and declarations may be delayed if not submitted in good time before the CDS downtime scheduled for 22:30 on Saturday, June 14th. 

NCTS will be available during the rollout of the CDS upgrade, but declarations may be queued from the late evening of Saturday, June 14th, and not released until the early hours of Sunday, June 15th. 


HMRC have released the following details: 

  • Declarations submitted into the New Computerised Transit System (NCTS) may be queued from 10.30pm on Saturday, June 14th, 2025, to 1.00am on Sunday, June 15th, 2025. 
  • NCTS will be available during this time and any declarations queued will be held and processed once the maintenance activity has concluded. 



HMRC recommends that declarations be submitted well in advance of Saturday's downtime to avoid any delay in movements. They apologise for any inconvenience. 



OneCall™ Email assistance as and when required; A one-call solution for all your import, export and customs enquiries. Export help. Import help. Customs help.

Stay informed about customs and international trade matters by subscribing to our OneCall™ service. This comprehensive offering includes a dedicated email helpline for support, timely practical updates direct to your inbox (Did You Know?), monthly UK Customs & Trade Briefings and access to an interactive members' area with an exclusive community for our subscribers.

Subscribe Today ➝

International Trade Updates & Spotlight Newsletter

Subscribe to our free information emails covering international trade topics...

Subscribe to our newsletter ➝

MORE INDUSTRY INSIGHTS...

by Gail Leeson 19 May 2026
The Export Control Joint Unit has published Notice to Exporters 2026/13, dated 13th May 2026, confirming the importance of including export licence data in the Customs Declaration.
by Gail Leeson 19 May 2026
There will be a short period of NCTS downtime on 1st June 2026, affecting both the Great Britain (GB) and Northern Ireland (XI) NCTS services . The NCTS services are planned to be unavailable as follows: Monday, 1 st June 2026: From 07:00 to 09.00 HMRC have confirmed both services are expected to be fully restored by 09:00 on 1 st June
by Liam Noonan 13 May 2026
The Office of Trade Sanctions Implementation (OTSI), which is part of the Department for Business and Trade, published a guidance notice on 22 April 2026 with the title ‘Sanctions End-Use Controls (SEUC): guidance for businesses’.
Show More