Answers · UK 2025/26

How much tax and National Insurance do I pay on £110,000 self-employed profit?

On £110,000 of self-employed taxable profit in 2026/27, you pay £33,432 Income Tax and £3,456.60 Class 4 National Insurance, keeping £73,111.40 after tax and NI. Your Personal Allowance is reduced to £7,570 by the taper.

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

Full answer

For a self-employed sole trader with £110,000 of taxable profit in 2026/27, the Personal Allowance taper cuts the standard £12,570 allowance by £1 for every £2 of profit above £100,000: £10,000 above the threshold means a £5,000 reduction, leaving a Personal Allowance of £7,570. Taxable profit is therefore £102,430, with £37,700 taxed at 20% (£7,540) and the remaining £64,730 taxed at 40% (£25,892), giving total Income Tax of £33,432. Class 4 National Insurance is charged on the profit figure directly, unaffected by the taper: 6% on profit between £12,570 and £50,270 (£2,262), plus 2% on the £59,730 above £50,270 (£1,194.60), giving £3,456.60. Total deductions leave £73,111.40 after tax and National Insurance. At £110,000, roughly 60p of every extra pound earned in this band disappears in Income Tax, Class 4 National Insurance and lost Personal Allowance, which is why many contractors and consultants operating through a limited company at this income level compare the after-tax outcome of extracting profit as salary versus dividends versus additional pension contributions.