The 2026/27 UK tax year runs from 6 April 2026 to 5 April 2027. How much income tax you pay comes down to where you live in the UK, how much you earn over your £12,570 Personal Allowance, and whether you run into the 60% marginal tax trap above £100,000. Here is how the numbers work across England, Wales, Northern Ireland, and Scotland.
Key Takeaways for the 2026/27 Tax Year
- Standard Personal Allowance: £12,570 is tax-free for all UK residents earning up to £100,000.
- Rest of UK Brackets: Basic Rate (20% on £12,571–£50,270), Higher Rate (40% on £50,271–£125,140), and Additional Rate (45% over £125,140).
- Scottish Devolved System: 6 separate tax rates ranging from 19% (Starter) to 48% (Top rate over £125,140).
- The £100,000 Taper: Personal Allowance drops by £1 for every £2 of income above £100,000, creating an effective 60% marginal tax rate (£100,000 to £125,140).
1. The £12,570 Personal Allowance & The £100k Taper
Most UK residents get a tax-free Personal Allowance of £12,570 for 2026/27. Any income you make up to that figure is completely free of income tax.
The £100k “Tax Trap” (60% Effective Rate)
Once your income passes £100,000, you lose £1 of Personal Allowance for every £2 you earn above that threshold. By the time you reach £125,140, your entire allowance is gone.
This clawback creates a painful 60% effective income tax rate on earnings between £100,000 and £125,140:
- For every extra £100 you earn, you pay £40 in Higher Rate tax (40%).
- You also lose £50 of your tax-free allowance, shifting another £50 into the 40% band (another £20 in tax).
- Total income tax on that £100: £60 (an effective 60% income tax rate).
- Add 2% Class 1 National Insurance, and you actually keep just £38 out of every £100 earned in this slice (a 62% marginal deduction).
2. Income Tax Bands: England, Wales & Northern Ireland
For taxpayers in England, Wales, and Northern Ireland (rUK), taxable income above £12,570 is subject to three statutory tax bands:
| Tax Band | Taxable Income Bracket | Tax Rate | Band Width |
|---|---|---|---|
| Personal Allowance | £0 to £12,570 | 0% | £12,570 |
| Basic Rate | £12,571 to £50,270 | 20% | £37,700 |
| Higher Rate | £50,271 to £125,140 | 40% | £74,870 |
| Additional Rate | Over £125,140 | 45% | Unlimited |
3. Scottish Income Tax Bands (Devolved 6-Rate System)
The Scottish Parliament exercises devolved legislative power to set its own income tax bands and rates for Scottish resident taxpayers. In 2026/27, Scotland implements a progressive six-tier system:
| Scottish Band | Taxable Income Bracket | Tax Rate | Band Width |
|---|---|---|---|
| Personal Allowance | £0 to £12,570 | 0% | £12,570 |
| Starter Rate | £12,571 to £16,537 | 19% | £3,967 |
| Basic Rate | £16,538 to £29,526 | 20% | £12,989 |
| Intermediate Rate | £29,527 to £43,662 | 21% | £14,136 |
| Higher Rate | £43,663 to £75,000 | 42% | £31,338 |
| Advanced Rate | £75,001 to £125,140 | 45% | £50,140 |
| Top Rate | Over £125,140 | 48% | Unlimited |
4. Rest of UK vs Scotland: Side-by-Side Worked Example (£40,000 Gross)
Consider an employee earning an annual gross salary of £40,000 in 2026/27 with a standard tax code (1257L / S1257L) and no student loans:
| Calculation Element | England / Wales / NI | Scotland | Difference |
|---|---|---|---|
| Gross Salary | £40,000.00 | £40,000.00 | £0.00 |
| Personal Allowance | £12,570.00 | £12,570.00 | £0.00 |
| Income Tax Due | £5,486.00 | £5,551.07 | +£65.07 |
| National Insurance (Class 1) | £2,194.40 | £2,194.40 | £0.00 |
| Net Annual Take-Home | £32,319.60 | £32,254.53 | -£65.07 |
| Effective Income Tax Rate | 13.71% | 13.88% | +0.16% |
Because Scotland’s Intermediate rate begins at £29,527 (21%) and Higher rate begins at £43,663 (42%), taxpayers in Scotland earning over ~£29,000 pay slightly more income tax than their peers in England, whereas earners below ~£28,850 pay marginally less due to the 19% Starter rate.
Statutory Legislation & References
All tax brackets and allowance limits referenced in this guide are maintained according to confirmed HMRC directives for 2026/27:
- GOV.UK: Income Tax rates and Personal Allowances (2026/27)
- GOV.UK: Scottish Income Tax bands and rates (2026/27)
- Income Tax Act 2007 (c. 3), Part 2, Chapter 2 (Personal Allowances)