Typed in a hurry as "salary calulator" or in full as salary calculator, the question underneath is the same: what does a gross salary keep after income tax and National Insurance? For 2026/27: £25,000 keeps £21,519.60, £35,000 keeps £28,719.60, and £50,000 keeps £39,519.60. The calculator this page links computes any figure from the published GOV.UK rates, with every deduction line shown.
What a salary calculator actually computes
Four things, in order: taxable income (gross minus the £12,570 allowance), income tax by band on that taxable figure, National Insurance on gross above its own threshold, and the remainder split into month, week, day and hour. A calculator worth trusting shows each line with the band it used, cites the year's published rates, and lets you add the two inputs that change most payslips: a pension percentage and a student loan plan.
The shape of take-home across the range
The deduction share climbs in steps, not a straight line: £25,000 loses 13.92%, £35,000 loses 17.94%, £50,000 loses 20.96%, and £80,000, well into the 42% marginal zone, loses 28.8%. Between any two salaries, the extra pounds are taxed at the marginal rate of the band they land in, which is why a £5,000 rise never feels like £5,000: from £35,000 it keeps £3,600.00.
Getting a trustworthy answer from any calculator
Check three things before believing a net figure: the tax year label (rates change every April; this site runs 2026/27), whether Scottish bands are applied when they should be (residence decides, and the Scottish page here works the difference), and whether the figure is before or after pension. A calculator that will not show its deduction lines and sources is asking to be taken on faith; the one linked below shows both, and this whole site exists because that should be normal.
Questions people ask about salary calulator
Why do different salary calculators give different answers?
Usually a different tax year, a Scottish/rUK mismatch, or silent pension assumptions. Same year, same jurisdiction, no pension: the statutory arithmetic has exactly one answer.
Is the monthly figure just the annual ÷ 12?
For salaried PAYE, yes on both gross and net to within pence. NI's per-period assessment can move it by pounds in uneven months.
Can I calculate from a weekly wage?
Yes: the calculator takes year, month, week, day or hour and annualises before applying the bands.