UK Tax Calculators 2024/25
Eight free calculators covering the whole UK personal tax stack — from your monthly payslip to your capital gains bill. All figures updated for the 6 April 2024 – 5 April 2025 tax year.
UK Take-Home Pay Calculator
Work out your UK take-home pay after Income Tax, NI, pension and student loan. Get monthly, weekly and hourly net pay with a full breakdown.
Open calculator →Scottish Take-Home Pay Calculator
Work out Scottish take-home pay after Scottish Income Tax, NI, pension and student loan. All six 2024/25 Scottish bands, starter through top.
Open calculator →UK Self-Employed Tax Calculator
Work out the Income Tax and National Insurance (Class 2 & 4) you'll owe as a UK sole trader. Get your bill, take-home and payment-on-account.
Open calculator →UK Salary Sacrifice Pension Calculator
See how much extra pension you get — and how little your take-home actually drops — with salary sacrifice. Shows the NI saving in £ terms.
Open calculator →UK Dividend Tax Calculator
Work out UK dividend tax for 2024/25. Handles the £500 allowance, Personal Allowance interaction, and the 8.75/33.75/39.35% rates.
Open calculator →UK Capital Gains Tax Calculator
Work out your UK Capital Gains Tax for 2024/25 on shares, funds or property. Handles the £3,000 exempt amount and shares vs property rates.
Open calculator →UK Marriage Allowance Calculator
Find out whether you and your partner can claim the Marriage Allowance, and how much you'd save from transferring £1,260 of Personal Allowance.
Open calculator →UK Stamp Duty (SDLT) Calculator
Work out UK Stamp Duty Land Tax on a property purchase. Covers standard buyers, first-time buyers and additional/buy-to-let, with band-by-band breakdown.
Open calculator →The 2024/25 UK tax numbers at a glance
- £12,570 — Personal Allowance (Income Tax)
- £50,270 — Higher-rate threshold (20% → 40%)
- £125,140 — Additional-rate threshold (40% → 45%); Personal Allowance fully tapered by this point
- 8% — Class 1 NI main rate (was 12% for most of 2023/24)
- £3,000 — Capital Gains annual exempt amount (down from £6,000)
- £500 — Dividend allowance (down from £1,000)
- 24% — Higher CGT rate on residential property (down from 28% on 6 Apr 2024)
- £1,260 — Marriage Allowance transfer — worth up to £252/year
Which calculator do I need?
- Employed, salaried? Start with UK Take-Home Pay. Scots use Scottish Take-Home.
- Self-employed / sole trader? Use Self-Employed Tax — it handles Class 2 and Class 4 NI.
- Company director on salary + dividends? Use Dividend Tax. Also check Take-Home for the salary side.
- Boosting pension via work? Salary Sacrifice shows the NI saving in £ terms.
- Selling shares or a second property? Capital Gains Tax handles both asset types.
- Married, one of you a low earner? Marriage Allowance — up to £252/year.
- Buying a home? Stamp Duty — first-time-buyer, second-home and buy-to-let flags.
How UK tax actually stacks (in plain English)
Your income is treated in layers. Income Tax and National Insurance both apply to earnings, but with different thresholds. Dividends and capital gains are taxed on top of your salary — so a £5,000 gain feels very different if you earn £30,000 versus £80,000. That's why our calcs ask for your other income: to know which band your gain or dividend falls into.
FAQ
Are these calculators up to date?
Yes — all eight calculators use HMRC's published 2024/25 rates, bands and thresholds. We update them when Autumn/Spring statements change anything.
Do you store my inputs?
No. Every calculation runs entirely in your browser. Nothing is sent to a server. See our privacy policy.
Can I trust these for tax returns?
These are for guidance and planning. For your Self Assessment or PAYE position, double-check via your HMRC Personal Tax Account or an accountant.