Calculate tax, interest and penalties for the tax years ending 5 April 2010 to 5 April 2023
Use this form to work out Income Tax, interest, penalties and Class 4 National Insurance contributions for tax years ending 5 April 2010 to 5 April 2023.
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Updates to this page
Published 22 November 2022Last updated 26 January 2024 + show all updates
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The tax, interest and penalty calculator has been updated to include the tax years ending 5 April 2010 to 5 April 2022.
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Title and form corrected to say 'for tax years ended 5 April 2010 to 5 April 2021'.
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The tax, interest and penalty calculator for the tax years ending 5 April 2011 to 5 April 2021 has been updated.
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First published.