Self-Employed · 2025/26

Self-Employed Tax Calculator

Calculate your sole trader or freelancer take home pay after income tax, Class 2 & 4 National Insurance, and student loan repayments.

Your Self-Employment Income
£
£
Deductions
£
Your Take Home Pay
£0
per year (after all taxes)
Taxable profit £0
Income tax −£0
Class 4 NI −£0
Class 2 NI −£0
Take home £0
Effective Tax Rate 0%
Take Home Breakdown
Yearly
£0
Monthly
£0
Weekly
£0
Daily
£0

How Self-Employed Tax Works in the UK

If you're a sole trader or freelancer, you pay tax on your profits — that's your revenue minus allowable business expenses. You're responsible for paying both income tax and National Insurance through Self Assessment.

Unlike employees, self-employed workers pay Class 2 and Class 4 National Insurance instead of Class 1.

Class 2 & Class 4 National Insurance 2025/26

TypeThresholdRate
Class 2 NIProfits above £12,570£3.45/week (£179.40/year)
Class 4 NI (lower)£12,570 – £50,2706%
Class 4 NI (upper)Above £50,2702%

What Counts as Allowable Expenses?

You can deduct legitimate business costs from your revenue before calculating tax. Common examples include office costs (stationery, phone bills), travel expenses, professional subscriptions, accounting fees, and the cost of goods you sell. HMRC has detailed guidance on what qualifies.

Employed vs Self-Employed: Which Pays Less Tax?

Self-employed workers currently pay lower National Insurance rates (6% vs 8% for employees between the thresholds). However, you don't get employer pension contributions, sick pay, or holiday pay. Use our employed take home pay calculator to compare.