Self Employment Tax Calculator

If you are self employed, use this simplified Self Employed Tax Calculator to work out your tax and National Insurance liability. The calculator uses tax information from the tax year 2024 / 2025 to show you take-home pay. More information about the calculations performed is available on the details page.

Self Employment

Annual Income	£	The total annual income from your self-employment, before expenses.
Annual Outgoings	£	The total annual outgoings for your self-employment - enter the total of any allowable expenses in here.
Tax code		If you know it, you can enter your tax code in here. If you don't know your tax code, simply leave this blank.
National Insurance	Pay Class 2	If your profit is below the threshold (£6,725 for 2024/25) you might choose to pay Class 2 NICs voluntarily in order to qualify for a National Insurance credit.

Age	Under 7676 to 85Over 86	Which age group you are in affects your tax-free allowance, and whether or not you pay National Insurance. For the 2024/25 tax year, this is your age on 6th April 2024.
	MarriedBlindNo NI	Married people over the age of 75 get a tax rebate - tick this box if this applies to you. Tick the "Blind" box if you are registered blind, as this affects your personal tax-free allowance. If you do not pay National Insurance contributions, for instance, if you are over state pension age, tick the "No NI" box.

Student Loan	Plan 1Plan 2	There are now two methods of repaying Student Loans. If you started your course before 1st September 2012, tick "Plan 1". If you started your course after 1st September 2012, tick "Plan2".

Self-Employment
	Yearly	Monthly	Weekly	Daily
Profit	£ 0.00	£ 0.00	£ 0.00	£ 0.00
Taxable income	£ 0.00	£ 0.00	£ 0.00	£ 0.00
Total Tax	£ 0.00	£ 0.00	£ 0.00	£ 0.00
Class 2 NICs	£ 0.00	£ 0.00	£ 0.00	£ 0.00
Class 4 NICs	£ 0.00	£ 0.00	£ 0.00	£ 0.00
Student Loan	£ 0.00	£ 0.00	£ 0.00	£ 0.00
Take Home	£ 0.00	£ 0.00	£ 0.00	£ 0.00

Use the options to the right to change the time periods displayed, or the tax year that should be used for calculations.

Amount owed to HMRC: £0.00. Payment on account for 2025/26: £0.00.

Total Self Assessment due by 31st January 2026: £0.00.

A further payment on account due by 31st July 2026: £0.00.

This does not include any payments on account you may already have made for the 2024/25 tax year.

What does this mean?

The calculator needs some information from you before working out your tax and National Insurance. Firstly, enter your annual income and outgoings from self-employment. Your tax code, age, and other options might also affect your calculations.

If you are self-employed you will have to tell HMRC about your self-employment income, so that your tax, National Insurance and student loan repayments (if applicable) can be calculated. Using the details provided above, the calculator will try to work out the amount that HMRC will ask you to pay.

If your self-employment income is below the small earnings limit (£6,725 for 2024 / 25) you can apply to HMRC to defer your Class 2 National Insurance contributions - tick this option if this applies to you. You might choose to pay these contributions anyway, to make sure that you are entitled to the benefits of National Insurance, such as the State Pension. More information available from HMRC - Class 2 National Insurance exceptions.

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