This Content Was Last Updated on March 4, 2025 by Jessica Garbett
As well as our Tax Examples we’ve provided a simple calculator for you to estimate your own tax.
This is the 2025/26 calculator
This is the 2024/25 calculator
This is an excel download. Its not tested on other spreadsheets, eg Open Office, Numbers, or GoogleSheets
It is provided as a free resource, without liability. It uses the same formulation as our internal tax modelling, so as far as we are aware is accurate, but E&OE.
A few notes:
- Enter data in the grey boxes, and you can experiment with the results.
- The calculator is designed to be used with annual amounts, so if you are part way through the year you will need to estimate the remainder of the year.
- As a warning / observation, tax is complicated, and this calculator is no substitute for professional help. Please use on an E&OE basis and take advice if you are unsure about anything.
- This sheet is suitable for Sole Traders, and does not support tax for Companies.
- This sheet is copyright Whitefield Tax Limited and provided without liability for personal use only, and may not be redistributed without permission.
- The tax rates are for England only – Scottish and Welsh rates are not supported (currently Scottish rates vary to England, Welsh do not)