Budget for your self assessment tax bill if you are self-employed 

Use the self-employed ready reckoner to budget for your Self Assessment (external link) tax bill.

Enter your estimated weekly or monthly profit to get an idea of how much Income Tax (external link), Class 2 and Class 4 National Insurance (external link) you will pay.  

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.