Guidance

Corporation Tax — service availability and issues

Updated 5 September 2024

Service availability

If you’re trying to create, sign in or reset your user ID or password, check for known problems with Government Gateway.

Sign in to Corporation Tax online.

Planned downtime

None.

Service issues

Find out about changes and issues that may affect how you use the Corporation Tax online service to file your Company Tax Return.

Other services

Check availability and issues for other services.