Last reviewed: 6 April 2026 by Mustafa Bilgic, UK Tax Specialist

Reviewed by UK Tax Experts · Updated April 2026 · ✓ HMRC Compliant

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How the Compare Two Salaries Calculator Works

Comparing job offers across UK cities is harder than it looks. A £55,000 salary in London might seem better than £42,000 in Birmingham — but once you factor in rent, transport and food, the picture often flips. Our calculator does the maths for you using HMRC 2025/26 tax rates and real cost-of-living data from 40+ UK cities.

The four-step calculation

  1. Gross to net pay — We apply UK income tax (Personal Allowance £12,570, basic 20%, higher 40%, additional 45%) and employee National Insurance (8% above £12,570, 2% above £50,270).
  2. Pension deduction — Optional percentage applied as salary sacrifice (reduces taxable income).
  3. City living costs — Annual rent + transport + food are subtracted from net pay using city-specific data.
  4. Real disposable income — What's actually left in your pocket after the essentials. This is the number that matters.

UK 2025/26 tax bands used

BandRangeRate
Personal Allowance£0 – £12,5700%
Basic rate£12,571 – £50,27020%
Higher rate£50,271 – £125,14040%
Additional rate£125,141+45%

Plus employee National Insurance: 8% on earnings between £12,570 and £50,270, then 2% above £50,270.

Cost of living index — methodology

Each of the 40+ UK cities in the dropdown has three benchmark monthly figures: a one-bedroom flat rent in a typical area, a monthly public transport pass, and average grocery costs for one adult. Sources: ONS Private Rental Index, Numbeo Cost of Living, Rightmove and TfL/local authority data, calibrated to 2025/26.

London vs the rest — the rent gap

London rent (£2,100/month for a 1-bed) is more than double the UK average. The next most expensive cities are St Albans (£1,700), Guildford (£1,620), Oxford (£1,550) and Cambridge (£1,500). At the other end, Hull, Bradford and Stoke-on-Trent come in around £700/month. That's a £16,800/year rent saving simply by moving 200 miles north — equivalent to a £24,000 pay rise pre-tax.

Common comparison scenarios

Limitations to keep in mind

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Frequently asked questions

How does the compare two salaries calculator work?

Enter two gross salaries and pick a UK city for each. We apply UK 2025/26 income tax and National Insurance, then subtract typical monthly living costs (rent, transport, food) for the chosen city. The result is your real disposable income.

Why is £40k Manchester often better than £50k London?

London rent averages around £2,100/month vs £980 in Manchester — a £13,440/year difference. Add higher transport (£165 vs £75) and food costs, and a London salary typically needs to be £18,000–£22,000 higher to match Manchester's real disposable income.

Which UK city has the best disposable income?

For mid-range salaries (£30k–£50k): Stoke-on-Trent, Hull, Bradford, and Sheffield consistently top the league. For higher earners (£70k+): Birmingham, Manchester and Leeds become very strong.

What costs are included?

Monthly rent for a one-bedroom flat in a typical area, monthly public transport pass, and average monthly grocery costs for one adult. These three items represent 60–75% of a single person's monthly outgoings.

Are these UK city cost figures accurate for 2025/26?

Figures are calibrated to 2025/26 averages from ONS, Numbeo, Rightmove and TfL data. Actual costs vary within cities — central Zone 1 London is much higher than the £2,100 average. Use the figures as a benchmark, not a quote.

Does the calculator account for Scottish income tax rates?

This calculator uses UK-wide rUK rates (20%/40%/45%) for both salaries to keep the comparison apples-to-apples. Scottish residents actually pay slightly more above ~£28,000. For exact Scottish band calculations use our Salary Calculator.