Answers · UK 2025/26

How much tax and National Insurance do I pay on £175,000 self-employed profit?

On £175,000 of self-employed taxable profit in 2026/27, you pay £64,953 Income Tax and £4,756.60 Class 4 National Insurance, keeping £105,290.40 after tax and NI.

Last updated: 3 July 2026Last reviewed: 3 July 2026How we verify

Full answer

For a self-employed sole trader with £175,000 of taxable profit in 2026/27, the Personal Allowance is fully withdrawn, so all £175,000 is taxable. The first £37,700 is taxed at 20% (£7,540), the next £87,440 (up to £125,140) at 40% (£34,976), and the remaining £49,860 above £125,140 at the 45% additional rate (£22,437), giving total Income Tax of £64,953. Class 4 National Insurance is charged at 6% on profit between £12,570 and £50,270 (£2,262), plus 2% on the £124,730 above £50,270 (£2,494.60), giving £4,756.60. Total deductions leave £105,290.40 after tax and National Insurance. At this profit level, many self-employed professionals -- consultants, barristers, and specialist contractors among them -- review whether trading through a limited company would be more tax-efficient, since corporation tax at up to 25% followed by dividend tax can sometimes produce a lower combined bill than Income Tax and Class 4 National Insurance as a sole trader, though the comparison depends heavily on how much profit is retained in the company versus extracted each year.