Service availability

Planned Maintenance

Any planned disruption to services are listed below, please be aware that this information can change at very short notice.

Unless otherwise specified, all times are local.

Last change to the information on this page: Tuesday 20 Oct 2026 11:00

Planned maintenance:
Start: 03/11/2026 20:00
End: 03/11/2026 22:00
Planned outage on to
See message from NCTS

We will be carrying out planned maintenance on the New Computerised Transit System (NCTS)
03 November 2026, 8 pm to 10 pm:
NCTS XI – 8 pm to 10 pm
NCTS GB – 8 pm to 10 pm

NCTS GB and NCTS XI data submitted during the period above will be held and processed once the maintenance activity has concluded and the service is available again.

Please see NCTS service availability page to check for latest updates on system availability status.

HMRC apologise for any inconvenience.

Service availability

Planned Maintenance

The list below details any planned disruption to services to the best of our knowledge. Disruption to any of these can impact the performance of Sequoia.

This information can change at very short notice. Unless otherwise specified, all times are local.

Last change to the information on this page: Tuesday 20 Oct 2026 11:00

Service Start time End time Details
ASM Online Services
CCS-UK
CDS Live Service
CDS Test Service (TDR)
CNS Compass
ICS2
MCP Destin8
NCTS/CTC
03/11/2026 20:00 03/11/2026 22:00 Planned outage on to
See message from NCTS

We will be carrying out planned maintenance on the New Computerised Transit System (NCTS)
03 November 2026, 8 pm to 10 pm:
NCTS XI – 8 pm to 10 pm
NCTS GB – 8 pm to 10 pm

NCTS GB and NCTS XI data submitted during the period above will be held and processed once the maintenance activity has concluded and the service is available again.

Please see NCTS service availability page to check for latest updates on system availability status.

HMRC apologise for any inconvenience.
Pentant