Guidance: Calculate tax, interest and penalties for the tax years ended 5 April 2011 to 5 April 2021

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:

1. Download and save the form on your computer.

2. Open it using the latest free version of Adobe Reader.

3. Complete it on-screen.

Tax, interest and penalty calculator for the tax years ending 5 April 2011 to 5 April 2021

PDF, 250 KB, 1 page

This file may not be suitable for users of assistive technology.

Request an accessible format.

If you use assistive technology (such as a screen reader) and need a
version of this document in a more accessible format, please email different.format@hmrc.gov.uk.
Please tell us what format you need. It will help us if you say what assistive technology you use.

Read the accessibility statement for HMRC forms.

Email HMRC to ask for the form in Welsh (Cymraeg).

Problems with the form

If the form doesn’t load, try the following:

• review your settings to make Adobe Reader the default program for opening PDF documents
• save a copy of the form and open it in Adode Reader:
  • Windows users should right-click on the form link then select ‘Save target as’ or ‘Save link as’
  • Mac users should right-click on the form link then select ‘Save linked file as’

It may not work if you try to open it in your internet browser. If the form does not open, then contact the online services helpdesks for more help.