Only the income inside each band is taxed at that band's rate. Moving into a higher band never reduces your overall take-home pay.
Income tax is charged in slices. The first £12,570 is normally tax free, the next £37,700 is taxed at 20%, the slice after that at 40%, and anything above £125,140 at 45%. Crossing into a higher band only changes the rate on the pounds inside that band, never on the ones below it.
On £35,000 a year with a standard 2026/27 tax code, no pension, no student loan, the figures work out like this. Open a calculator to put your own numbers in.
| Tax/source year | 2026/27 |
|---|---|
| Region | England/Wales/Northern Ireland |
| Tax code basis | 1257L where the page uses PAYE defaults |
| Pension basis | No pension deduction unless this example says otherwise |
| Student loan basis | No student loan unless selected in this example |
| Calculator setting | The answer is more useful when matched to the same tax year, region, tax code, pension and loan settings used in the calculator. |
|---|---|
| Records to compare | Payslips, HMRC records, student-loan notices and pension scheme documents can explain differences. |
| Tax code | HMRC tax-code changes, K codes, BR/D codes, or emergency markers can change PAYE deductions. |
|---|---|
| Cumulative basis | Week 1, Month 1 or non-cumulative payroll can differ from a smooth annual calculator estimate. |
| Pension method | Relief at source, net pay and salary sacrifice can affect taxable pay and take-home pay differently. |
| Payroll timing | Bonus, overtime, arrears, refunds, cut-off dates and corrections can all move a single payslip. |
| Open the salary calculator with editable assumptions | calculator next step |
|---|---|
| Review calculation sources and methodology | source context |
| What is not decided here | PayBreakdown does not decide payroll correctness, lender approval, benefit entitlement or employer compliance, and does not give regulated financial, mortgage, debt, tax, payroll or legal advice. |
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The figures on this page are worked from tax rate bands, using the values below. Open the calculator if your example salary differs.
The bands are measured against taxable income, which is your income after the Personal Allowance has been deducted.
The common worry is that crossing a threshold re-taxes everything. It does not: only the part above the threshold is taxed at the new rate.
Between £0 and £0 the Personal Allowance is withdrawn at £1 for every £2 earned, which creates a much higher effective rate than the headline 40%.
This is educational guidance on how UK pay and tax work. It does not decide payroll correctness, HMRC treatment, lender approval, benefit entitlement or employment rights, and it is not regulated financial advice. Where a figure matters, check it against your payslip, your HMRC account, or the official guidance linked above.
No. Only the income above the higher rate threshold is taxed at 40%. The Personal Allowance is still tax free and the first £37,700 of taxable income is still taxed at 20%.
At about £50,270 on a standard tax code, which is the £12,570 Personal Allowance plus the £37,700 basic rate band.
No. Because only the income inside each band is taxed at that band's rate, more gross pay always means more net pay. The rate on the extra can be high, but it is never above 100%.
Between £0 and £0 the Personal Allowance is withdrawn at £1 for every £2 earned. Losing allowance while also paying 40% produces an effective marginal rate of 60% across that band.
Last updated 2026-08-27. Checked by Sean Elsmore. Rates last checked against GOV.UK on 2026-08-07. Estimates are for planning and should be checked against official records where the decision matters.