US vs UK Tax: Take-Home Pay at Six Salaries (2026)
Compare US and UK take-home pay at six benchmark salaries for 2026, with the full arithmetic, the UK's 60% tax trap, the frozen threshold drag, employer NI costs, and healthcare.
At 100,000 salary in local currency, the UK takes 31.4% in income tax and NI, while the US federal system takes only 20.8%—a 10.6 percentage point advantage.
- On the OECD like-for-like tax wedge measure, an average single worker pays 32.4% in the UK versus 30.0% in the US.
- At 100,000 nominal pay, an employee retains £68,557 in the UK versus $79,180 in the US (before US state income tax).
- The UK Personal Allowance taper creates an effective 60% marginal income tax rate (62% with NI) on earnings between £100,000 and £125,140.
- US FICA payroll taxes are flat at 7.65% up to $184,500, whereas UK employee NI drops from 8% to 2% above £50,270.
- UK tax thresholds remain frozen through April 2031, dragging over 7.7 million workers into the 40% higher-rate band.
- Employer costs differ sharply: UK employer NI rose to 15% on wages above £5,000, compared to US employer FICA of 7.65%.
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1. The Two Tax Systems at a Glance
The UK operates an individual tax unit system where each spouse files separately, while the US allows married couples to file jointly. The UK provides a tax-free Personal Allowance of £12,570, whereas the US provides a standard deduction of $16,100 for single filers ($32,200 for joint filers).
UK income tax rates are 20% basic, 40% higher (starting at £50,270), and 45% additional (starting at £125,140). US federal brackets range from 10% to 37%.
Employee payroll contributions also diverge: the UK charges National Insurance (NI) at 8% between £12,570 and £50,270, dropping to 2% on earnings above £50,270. The US levies FICA at 7.65% (6.2% Social Security up to $184,500 plus 1.45% Medicare on all earnings).
2. Side-by-Side Take-Home Pay at Six Benchmark Salaries
To compare purchasing power without currency distortion, we evaluate both systems at identical nominal salaries in their home currency.
UK calculations apply to employees in England, Wales, and Northern Ireland without student loans. US figures apply to single filers using the standard deduction before state income taxes.
| Nominal Salary (Local Currency) | UK Income Tax + NI | UK Net Take-Home | US Federal Tax + FICA | US Net Take-Home | US Take-Home Advantage |
|---|---|---|---|---|---|
| 30,000 | £4,880 (16.3%) | £25,120 | $4,545 (15.1%) | $25,455 | +1.2% more retained |
| 50,000 | £10,480 (21.0%) | £39,520 | $7,645 (15.3%) | $42,355 | +5.7% more retained |
| 75,000 | £20,943 (27.9%) | £54,057 | $13,408 (17.9%) | $61,592 | +10.0% more retained |
| 100,000 | £31,443 (31.4%) | £68,557 | $20,820 (20.8%) | $79,180 | +10.6% more retained |
| 125,140 | £47,029 (37.6%) | £78,111 | $28,450 (22.7%) | $96,690 | +14.9% more retained |
| 150,000 | £58,714 (39.1%) | £91,286 | $36,209 (24.1%) | $113,791 | +15.0% more retained |
3. The UK's 60% Marginal Tax Trap Between £100,000 and £125,140
In the UK, once your adjusted net income crosses £100,000, your £12,570 Personal Allowance is clawed back at a rate of £1 for every £2 of income above £100,000. It disappears completely at £125,140.
This withdrawal means that for every £100 earned in this band, £50 of previously tax-free allowance is exposed to the 40% higher rate, generating an extra £20 in tax. Combined with the regular 40% income tax and 2% employee NI, your marginal effective tax rate in this corridor is 62%.
On a £10,000 pay rise from £100,000 to £110,000, income tax increases by £6,000 and NI increases by £200, leaving you with only £3,800 net cash.
4. Fiscal Drag: The UK Threshold Freeze Through 2031
UK income tax thresholds have been frozen since April 2021, and the UK Government's Budget extended this freeze through April 2031.
HMRC data reveals that the number of higher-rate (40%) taxpayers has surged from 3.98 million in 2020-21 to 7.70 million in 2026-27—nearly doubling. Additional-rate (45%) taxpayers have tripled from 433,000 to 1.29 million over the same timeframe.
In contrast, the US Internal Revenue Code mandates annual inflation indexing for federal tax brackets and the standard deduction, preventing inflation-driven bracket creep.
5. The Healthcare & Employer Cost Dimensions
While the US leaves workers with higher gross take-home pay, US workers must pay for healthcare through private health insurance. In 2025, KFF surveys show that average covered workers paid $1,440/year toward single premiums and faced an average deductible of $1,886 ($3,326 total out-of-pocket maximum before insurance pays 100%). In the UK, comprehensive healthcare is provided via the NHS with zero deductibles or premiums.
For business owners, hiring in the UK is significantly more expensive: UK employer National Insurance rose to 15% on wages above £5,000 (starting April 2025), compared to US employer FICA matching at 7.65%.
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