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Estimate your Self Assessment tax bill

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

Provided for Example Accountants

Your updates

Which update periods do you use?
Your software shows this. If you are not sure, it is usually standard update periods.
From 6 April. Updates end on 5 July, 5 October, 5 January and 5 April
From 1 April. Updates end on 30 June, 30 September, 31 December and 31 March

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