Prove your identity to continue

You can't file online until you've activated Government Gateway account using your Unique Taxpayer Reference(UTR).

You’ll have a user ID if you’ve signed up to do things like file your Self Assessment tax return online.
You’ll have an account if you’ve already proved your identity with either Barclays, CitizenSafe, Digidentity, Experian, Post Office, Royal Mail or SecureIdentity.