Estimate your Self Assessment tax bill if you're self-employed

Use the self-employed tax calculator to estimate your Self Assessment tax bill for the 2024 to 2025 tax year.

Enter your estimated weekly or monthly profit to get an idea of how much Income Tax and Class 4 National Insurance you’ll pay.

The estimate you get will be calculated as if you get the standard Personal Allowance.

It will not take into account:

  • any payments made for previous tax bills - known as payments on account
  • any other taxable income you get that’s not from self-employment (like income from property)

This service is also available in Welsh (Cymraeg).

Start now