Calculate interest and penalties for tax years endedending 5 April 20032005 to 5 April 20222023
Use this form to work out interest and penalties for tax years endedending 5 April 20032005 to 5 April 2022.2023.
Before you start
This form is interactive (one that you complete on screen) and you must use Adobe Reader to complete it.
How to complete the form
You need to:
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Download and save the form on your computer.
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Open it using the latest free version of Adobe Reader.
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Complete it on-screen.
Updates to this page
Published 22 November 2022Last updated
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The interest and penalty calculator has been updated to include the tax years ending 5 April 2005 to 5 April 2023.
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The interest and penalty calculator has been updated to include the tax years ending 5 April 2003 to 5 April 2022.
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Title and form corrected to say 'for tax years ended 5 April 2002 to 5 April 2021'.
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The interest and penalty calculator for the tax years ending 5 April 2003 to 5 April 2021 has been updated.
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First published.
Update history
2025-06-11 08:42
The ‘Interest and penalty calculator for the tax years ending 5 April 2006 to 5 April 2024’ has been updated.
2025-04-17 16:00
The interest and penalty calculator has been updated to include the tax years ending 5 April 2006 to 5 April 2024.
2025-03-13 11:34
The calculator has been updated to take account of the recent interest rate change.
2024-12-23 11:27
The interest and penalty calculator has been updated to include the tax years ending 5 April 2005 to 5 April 2023.
2024-01-26 15:24
The interest and penalty calculator has been updated to include the tax years ending 5 April 2003 to 5 April 2022.
2023-01-27 12:09
Title and form corrected to say ‘for tax years ended 5 April 2002 to 5 April 2021’.
2022-12-22 14:21
The interest and penalty calculator for the tax years ending 5 April 2003 to 5 April 2021 has been updated.
2022-11-22 13:57
First published.