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

Use the self-employed ready reckoner to budget for your Self Assessment tax bill for the 2023 to 2024 tax year.

Enter your estimated weekly or monthly profit to get an idea of how much Income Tax, Class 2 and Class 4 National Insurance you’ll pay.

This service is also available in Welsh (Cymraeg).

What you need to know

This tool assumes you have no other taxable income and receive the standard Personal Allowance. It does not include payments you must make for previous tax bills - known as payments on account.