Registration of TAN in Income tax portal

You've successfully registered your TAN on the Income Tax e-Filing portal, but are encountering an 'activate your user ID' message. To resolve this, you should receive an activation email to your registered address. Follow the link in the email, which will require you to enter OTPs sent to your mobile and email. Once activated, you'll be able to log in. Alternatively, check your worklist on the signatory IT filing portal for pending actions.