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This is a test site with dummy HMRC services. Do not enter real personal information. How it works.

Track your Self Assessment tax during the year

Create an account to:

  • save your income and see a forecast of your Self Assessment tax bill
  • add your figures as the year goes on, or upload your bank transactions
  • see how much to put aside each week or month for your next bills

We work out your forecast again when tax rates change or a payment deadline passes.

You can sign in with GOV.UK One Login. If you do not have a GOV.UK One Login, you can create one.

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You can also create an account with an email address and password or sign in with your password.

Warning This is an estimate. It does not file your tax return or tell HMRC anything.

How we use your information

We encrypt the figures you save. You can download or delete your information at any time. Read our privacy policy.

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