What is the personal allowance for 2025/26?

The standard personal allowance is £12,570. This is the amount of income you do not have to pay tax on.

How much is Class 4 National Insurance?

For the 2025/26 tax year, Class 4 National Insurance is charged at 6% on profits between £12,570 and £50,270, and 2% on profits above £50,270.

Does this calculator include Class 2 National Insurance?

Yes, passing the profit threshold effectively triggers Class 2 contributions, though for many sole traders this is now treated as 0% but still crediting your record. The calculator accounts for typical self-employed NI liabilities.

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UK Self-Employed Tax Calculator

Estimate your Income Tax and National Insurance for the 2025/26 tax year. Perfect for freelancers and sole traders.

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Annual Gross Income

Total invoiced before expenses

Annual Business Expenses

Equipment, software, travel, etc.

Take Home

£36,386.20

£3,032.18/month

Total Tax

£8,613.80

19.1% effective rate

Taxable Income

£45,000.00

After £5,000.00 expenses

Tax Breakdown (2025/26)

Gross Income£50,000.00

Less: Business Expenses-£5,000.00

Taxable Profit£45,000.00

Personal Allowance

£12,570.00

Income Tax

Basic Rate (20%)£6,486.00

Total Income Tax£6,486.00

National Insurance

Class 2 (£3.5/week)£182.00

Class 4 (9% / 2%)£1,945.80

Total National Insurance£2,127.80

Total Tax & NI£8,613.80

Take Home Pay£36,386.20

Estimate Only

This calculator provides an estimate based on 2025/26 tax rates for sole traders. It doesn't account for student loan repayments, pension contributions, or other adjustments. Always consult an accountant for accurate tax advice.

2025/26 Tax Rates

Personal Allowance£12,570

Basic Rate (20%)£12,571 - £50,270

Higher Rate (40%)£50,271 - £125,140

Additional Rate (45%)Over £125,140

National Insurance Rates

Class 2 NI£3.50/week

Class 4 NI (Main)6% on £12,570-£50,270

Class 4 NI (Upper)2% over £50,270

Track Expenses Automatically

RecoupIQ tracks your invoices and expenses, making tax time simple. Know exactly what you owe, all year round.