Income tax and National Insurance, 2026/27

£100,000 a year is £68,557 in your pocket

That's £5,713 a month, or £1,318 a week. Top 5% of UK earners — more than 96% of taxpayers.

Income tax 27.4%National Insurance 4.0%Yours 68.6%

Employee on a standard tax code in England, Wales or Northern Ireland. No pension, student loan or benefits in kind. Assumptions.

Every pound you earn, cut three ways

Where £100,000 goes

Line	Per year
Personal allowanceTax-free	£12,570
Basic rate income tax20% of £37,700	£7,540
Higher rate income tax40% of £49,730	£19,892
National Insurance8% up to £50,270, 2% above	£4,011
Take-home pay	£68,557

Effective rate

31%

of your pay goes to HMRC

Marginal rate

62p

of your next pound goes to HMRC — the £100k personal-allowance trap

Cost to employer

£114,250

Your salary plus £14,250 employer's National Insurance

All-in rate

40%

of the total cost of employing you ends up with HMRC

Working for the Treasury until

25 April

Your effective rate as a share of the year. After that the pay is yours.

For scale

£29,700

Median UK taxpayer income. The top 10% starts at £67,400, the top 1% at £207,000.