Pension Tax-Free Lump Sum: How the 25% Rule Works (2026/27)
You can normally take 25% of your pension as a tax-free lump sum, capped at £268,275. Here is exactly how the rule works…
Enter your take-home pay and spending. Everything updates instantly.
Add any other regular income (benefits, side income) here too.
Monthly spending
Left over each month
That's of your income to save or spend freely. You're overspending by a month.
50 / 30 / 20 rule
A popular guideline: 50% needs, 30% wants, 20% savings.
Needs
target 50%
Wants
target 30%
Savings
target 20%
Time to reach
Estimate only. Figures are what you enter - review them regularly.
Each category as a share of your total income.
If you save your full surplus of every month.
| Scenario | Income | Spending | Left over | Save rate | |
|---|---|---|---|---|---|
Enter your current location and the area you're comparing, then your monthly spending across the main categories. The tool adds them up, shows the gap between the two places, and works back to the salary you'd need to keep the same standard of living. Read on for how the maths works, a full worked example, and the things people most often get wrong when comparing UK cities.
Cost of living is the total amount you have to spend to maintain a given lifestyle in a particular place. The same job title can pay the same money in two cities and leave you with wildly different amounts at the end of the month, because rent, council tax, transport and even a pint of milk vary by region. London and the South East sit well above the UK average; large parts of the North East, Wales and Scotland sit below it.
The reason this matters is simple: a 10% pay rise that comes with a 25% jump in rent is a pay cut in disguise. A cost of living calculator strips out the headline salary and looks at what's left once the unavoidable spending is gone. That's the number that decides whether a move makes you better off or quietly poorer.
Most household budgets break down into a handful of categories. The calculator uses these because they're the ones that move most between areas:
You don't need every figure to the penny. Good estimates for the big three - housing, transport and bills - get you most of the way to an accurate answer, because they account for the bulk of the difference between areas.
The method behind a cost of living calculator is deliberately plain. There's no official "rate" to apply here - unlike Income Tax or Stamp Duty, living costs are driven by your own spending and local market prices, not a government table. The tool simply totals your monthly outgoings, compares two areas, and grosses the result up to a salary.
The core formulas in plain words:
That last step is where tax quietly bites. To spend an extra pound, a basic-rate employee in England, Wales or Northern Ireland needs to earn roughly £1.37 gross, because of the 20% Income Tax and 8% National Insurance taken from earnings between £12,570 and £50,270. Higher-rate earners feel it harder still, losing 40% to Income Tax above the £50,270 higher-rate threshold. So a £4,000-a-year cost increase from moving cities is not a £4,000 pay rise - you need materially more gross salary to cover it. If you want to see exactly how a given salary converts to take-home, the salary calculator does the deductions for you.
Priya is a project manager earning £42,000 in Leeds. She's been offered £52,000 to do the same role in London. On paper that's a £10,000 rise, and it's tempting to say yes on the spot. Let's run her cost of living through the calculator instead.
Her monthly costs in Leeds:
Leeds total: £850 + £140 + £150 + £75 + £250 + £300 = £1,765 a month, or £21,180 a year.
The same lifestyle in London (zone 2-3):
London total: £1,750 + £130 + £160 + £200 + £320 + £350 = £2,910 a month, or £34,920 a year.
The cost difference is £34,920 − £21,180 = £13,740 more per year to live in London. That already wipes out her £10,000 gross rise before tax is even counted.
Now the tax. On £42,000 in Leeds, Priya keeps roughly £32,690 after Income Tax (£5,886) and National Insurance (£2,434). On £52,000 in London, she's just into the higher-rate band: she pays around £7,946 Income Tax and £2,580 National Insurance, leaving about £41,474 take-home - because the slice above £50,270 is taxed at 40% plus 2% NI, so each extra pound earns her only 58p. Her take-home rises by about £8,784, but her living costs rise by £13,740. Priya would be roughly £5,000 a year worse off taking the "£10,000 pay rise". The cost of living calculator turns a gut-feel yes into an informed no - or a number she can negotiate against.
The biggest swings between UK areas come from housing and transport, so focus your research there first. A few practical pointers when you compare cities:
If your decision is really about whether you can afford a specific rent on a specific salary, the rent affordability calculator answers that directly using the common rule that rent shouldn't swallow more than about 30–35% of take-home pay.
People often search "what salary do I need to live in London" expecting a single magic number, but it depends entirely on your housing and lifestyle. The calculator flips the problem around: it takes your target monthly spend and tells you the gross salary that covers it after tax.
The logic, in plain words: required take-home = monthly cost of living × 12, then gross the take-home up through the Income Tax and National Insurance bands until the after-tax figure matches. As a rough rule of thumb for England, Wales and Northern Ireland in 2026/27, a basic-rate earner keeps about 72p of each extra pound earned over £12,570 (after 20% tax and 8% NI), and a higher-rate earner keeps about 58p of each pound over £50,270. That's why covering an extra £100 a month of London rent needs noticeably more than £1,200 of extra annual salary.
If your move crosses the border, the take-home maths changes. Scotland sets its own Income Tax rates and bands on earned income, with more bands than the rest of the UK - a starter rate of 19%, then 20%, 21%, a 42% higher rate, a 45% advanced rate and a 48% top rate. The Personal Allowance of £12,570 is still UK-wide, but the rate you pay on earnings above it differs, so the same gross salary leaves a different amount in your pocket in Edinburgh than in Newcastle. If you're comparing a Scottish city, work out take-home with the Scotland tax calculator rather than assuming English rates. Council tax bands and water charges are also set separately in Scotland and Wales.
A cost of living figure is a snapshot of today's prices. Rents, energy and groceries all drift over time, usually upward, so a budget that balances now can slip into the red a year later even without a lifestyle change. If you want to see how rising prices erode your spending power over several years - for example, what £30,000 of spending today might cost in five years - the inflation calculator projects that forward. Treat your cost of living result as a baseline to revisit each time your rent renews or your energy contract ends.
These figures are estimates for guidance only and not personal tax or financial advice. For tax rules, check the official rates on gov.uk, and for budgeting support see MoneyHelper. Always confirm your own circumstances before making a financial decision.
Where the budget calculator plans a month, this is about comparison — what a given standard of living costs, and how much your money needs to change to keep pace when prices or circumstances move.
It is most useful when something is about to change: a move to a different city, a job offer elsewhere, or working out what pay rise you need simply to stand still after a year of inflation. The answer to that last question is usually higher than the headline inflation figure, because housing and energy have risen faster than the average basket.
Once you've worked out your cost of living, plan the day-to-day with our budget calculator to split income across spending, saving and bills. Check whether a property is affordable with the rent affordability calculator, and see exactly what a job offer pays after deductions using the salary calculator.
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