Corporation Tax — service availability and issues
Updated 5 September 2024
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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.