Use the self-employed ready reckoner to budget for your Self Assessment tax bill for the 2015 to 2016 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.

Start now on the HMRC website

What you need to know

This tool assumes you have no other taxable income and receive the standard Personal Allowance.