How Much More Will You Actually Take Home? Comparing UK Salaries in 2025/26

A £10,000 raise at £35,000 puts £600 extra in your pocket each month. The same raise from £100,000 to £110,000? Just £317.

Wildly different outcomes from the same pay rise. Here's how to figure out what a salary change actually means for your bank account — whether it's a promotion, a new offer, or just curiosity.

Within a tax band, the maths is simple

If both salaries sit inside the same tax band, every extra pound is taxed at the same rate. No surprises.

Between £12,571 and £50,270, you're paying 20% income tax and 8% National Insurance. You keep 72p of every additional pound.

Within the basic rate band, every £5,000 raise gives you roughly the same £3,600 after tax. Your total tax bill is higher at £45,000 than at £30,000, obviously, but the marginal rate on each raise is identical.

This is the bit most people get right intuitively. You earn more, you take home more, and the relationship is predictable. It stays predictable all the way up to £50,270.

That said, tax and NI aren't the only deductions. I learned this the hard way — I got a pay rise and completely forgot about the jump in student loan repayments. 9% of everything above the threshold, straight off the top. The silver lining was that it cleared the loan about three years faster than I'd expected, but that first payslip was a shock.

When you cross a tax band, the maths gets less friendly

The basic rate band ends at £50,270. Above that, extra income is taxed at 40% income tax plus 2% NI — 42% combined instead of 28%.

That's still a decent raise. But it's not the ~£420/month the gross gap suggests, and that difference matters if the new role comes with a longer commute or less flexible hours.

Nobody should turn down a raise because of tax brackets — that's not how marginal rates work, and I've seen that myth repeated far too many times. You always take home more by earning more. But the gap between what you expect and what actually hits your account gets wider as you cross thresholds, so it's worth running the numbers before making a decision.

Compare your own salary pairs: Salary Comparison Calculator

The £100,000 cliff edge

Once you earn over £100,000, you start losing your personal allowance — the first £12,570 of income that's normally tax-free — at a rate of £1 for every £2 over the threshold. This creates an effective 62% marginal tax rate between £100,000 and £125,140 (40% income tax, plus 20% from the personal allowance taper, plus 2% NI).

And the tax hit isn't even the worst part. Crossing £100,000 means losing eligibility for Tax-Free Childcare (up to £2,000/year per child) and 30 hours of free childcare (worth roughly £9,400/year). This isn't a taper — it's a cliff edge. Earn £100,001 and the whole lot disappears.

This is the one threshold where you should think seriously about not taking a raise as cash. More on how to handle this below.

If you're comparing job offers, salary is just one line

Evaluating a raise is simple enough — same company, more money, how much actually lands in your account? Comparing two different offers is harder because the salary is only part of the package.

The big ones

Pension contributions are the one people most often overlook. An employer offering 3% matching versus 8% matching is a £2,500/year difference on a £50,000 salary. Over 20 years, compounded, that's a six-figure gap.

Bonus structure matters, but be realistic. A guaranteed £50,000 is worth more than £45,000 base with a "potential" £10,000 bonus. Ask what percentage of people actually hit the target. If nobody can give you a straight answer, treat the bonus as a nice surprise rather than part of your salary.

Beyond pension and bonus, other benefits have a cash value too — here's roughly what they're worth if you'd buy them yourself:

A £48,000 job with 8% pension matching, private healthcare, and an EV scheme can easily beat a £55,000 job with 3% pension and nothing else. When comparing offers, think in terms of the total compensation package — salary, pension, benefits, bonus — not just the headline number.

The stuff that doesn't fit in a calculator

A job paying £5,000 more but adding an hour each way to your commute is costing you over 450 hours a year. That's almost twelve full working weeks. Plus the actual travel cost — a London commute from outside the city runs £4,000–6,000 in annual rail fares, which can wipe out a salary difference entirely. Remote working two or three days a week has a financial value, but the quality-of-life value is harder to put a number on and probably matters more.

Then there's growth. A lower-paying role at a company that's going somewhere, or one that teaches you something new, could be worth far more over five years than a marginally higher salary at a place where you'll be doing the same thing in 2030 that you're doing now.

And the work itself. Forty-plus hours a week is a lot of hours to spend doing something you don't find interesting, with people you don't like, for a manager who doesn't back you. An extra £3,000 after tax doesn't fix that.

The best career move I made was taking the job that felt uncomfortable — the one that paid less and scared me a bit. Totally unintuitive at the time. But the growth that came from getting outside my comfort zone was worth more than any salary bump I'd been offered before it.

Making a raise work harder at the thresholds

If a raise pushes you into a higher band, you don't have to just absorb the higher rate. You can redirect some of that money before it gets taxed.

Compare your own numbers

Your situation will be different — student loans, Scottish tax rates, existing pension contributions all shift the numbers.

If you're crossing a threshold, check the Salary Sacrifice Calculator before deciding how to take the increase. A few minutes with a calculator now can save you a nasty surprise on your first payslip.