State authentication service now even more convenient for users

As of 30 March 2026, the Tax and Custom Board’s e-services environment e-MTA, transitioned to the state's unified sign-on service. This allows users to sign in to the e-services environments that have subscribed to this service with a single authentication during one browser session, without having to re-authenticate each time.

For users of the e-services environment e-MTA, this means that once you have authenticated yourself to log in to the environment, you will not need to authenticate separately if you wish to access another government e-service at the same time

Please note!

If you have forgotten to log out of a state e-services environment, landed on a phishing page, or noticed suspicious activity in state e-services, you can view your active sessions and, if necessary, terminate them via the self-service for state authentication service.

Learn more about the GovSSO state authentication service

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