Tax Bracket Calculator
Calculate your take-home pay after income tax and National Insurance. Supports UK (England/Wales/NI + Scotland bands), US, Australia, Canada, India, and more.
Tax Bracket Calculator
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Most people misunderstand how tax brackets work — and it costs them. A common fear is "a pay rise will put me in a higher bracket and I'll take home less." This is incorrect. Tax brackets are marginal: only the income above each threshold is taxed at the higher rate, not your entire salary. This calculator shows your exact take-home pay after income tax and — for UK residents — National Insurance contributions. It supports UK England/Wales/NI rates and Scotland's separate income tax bands (which differ significantly above £43,662). Enter your salary and see the full deduction breakdown: every bracket, every pound of tax, and what actually lands in your account. For the US, it covers both 2024 and 2025 federal brackets for single filers, married filing jointly, and head of household. Australia, Canada, India, UAE, and Mexico are also included.
Working Out Your Tax Bracket Calculator
The Tax Bracket Calculator is designed to give you an accurate answer in seconds. Follow these steps:
- 1Select your country and tax year from the "Country / Tax System" dropdown. UK users: choose "England, Wales & NI" or "Scotland" — Scotland has its own income tax bands that differ significantly above £43,662.
- 2If you selected a US option, choose your filing status: Single, Married Filing Jointly, or Head of Household. This changes the bracket thresholds.
- 3Enter your annual gross income (before tax) in the income field. Use your total salary before any deductions. Decimals are supported.
- 4Click "Calculate Take-Home Pay". Results appear instantly showing your take-home, income tax, and — for UK — National Insurance contributions as separate line items.
- 5Review the bracket breakdown table to see exactly how much of your income falls into each band and the tax charged on each portion. For UK, a separate National Insurance table shows the NI calculation band by band.
No account or sign-up required. All calculations run locally in your browser — nothing is stored or transmitted to any server.
The Maths Behind Tax Bracket Calculator
Income Tax = Σ (Income in each bracket × Rate) | UK NI = (£12,570–£50,270 × 8%) + (above £50,270 × 2%) | Take-Home = Gross − Income Tax − NI
UK sources: HMRC Income Tax rates and allowances (gov.uk/government/publications/rates-and-allowances-income-tax); HMRC National Insurance rates (gov.uk/national-insurance/what-national-insurance-is-for); Scottish Government Income Tax (mygov.scot/income-tax-scotland). US source: IRS Rev. Proc. 2024-61 (2025 tax year brackets). AUS: ATO Tax rates 2025–26. CAN: CRA federal tax brackets 2025.
The progressive tax system works like a series of buckets. Each bracket has a maximum capacity. Income fills each bucket from the bottom up, with the rate applied only to the income within that bucket. For each bracket: tax = min(income, bracket_ceiling) - bracket_floor × bracket_rate. Sum all brackets to get total income tax. For UK, add Class 1 National Insurance: 0% below £12,570, 8% between £12,570–£50,270, and 2% above £50,270. Subtract both from gross income to get take-home pay. Example: £50,000 UK salary (England, 2025-26). Personal Allowance: £0–£12,570 = £0 tax Basic Rate 20%: £12,570–£50,000 = £7,486 tax Total income tax = £7,486 National Insurance: (£50,000 − £12,570) × 8% = £2,994 Total deductions = £10,480 | Take-home = £39,520
Frequently Asked Questions
What are the UK income tax brackets for 2025-26?
UK income tax for England, Wales and Northern Ireland (2025-26): Personal Allowance of £12,570 is tax-free. Basic rate 20% from £12,571–£50,270. Higher rate 40% from £50,271–£125,140. Additional rate 45% above £125,140. Scotland has different rates: Starter 19% (£12,571–£14,876), Basic 20% (£14,877–£26,561), Intermediate 21% (£26,562–£43,662), Higher 42% (£43,663–£75,000), Advanced 45% (£75,001–£125,140), Top 48% (above £125,140).
How is National Insurance calculated in 2024-25?
Class 1 employee National Insurance contributions for 2024-25: 0% on earnings up to £12,570 (Primary Threshold). 8% on earnings from £12,570 to £50,270 (Upper Earnings Limit). 2% on earnings above £50,270. NI is separate from income tax. For a £40,000 salary: (£40,000 − £12,570) × 8% = £2,194 NI. For a £60,000 salary: (£50,270 − £12,570) × 8% + (£60,000 − £50,270) × 2% = £3,022 + £195 = £3,217 NI.
What is the difference between marginal and effective tax rate?
The marginal rate is the rate applied to the last pound/dollar earned — the highest bracket your income reaches. The effective rate is total tax paid divided by total income — the average rate across all your income. A £50,000 UK salary has a 40% marginal rate (higher rate band) but an effective income tax rate of only about 14.9% because most of the income is taxed at 0% and 20%. The effective rate is always lower than the marginal rate in a progressive system.
Will a pay rise put me in a higher tax bracket?
Only the additional income above the bracket threshold is taxed at the higher rate — not your entire salary. If you earn £49,000 and get a £5,000 raise, only the £4,270 above the £50,270 threshold moves into the 40% higher rate band. Everything below £50,270 is still taxed at 20%. A pay rise cannot make you worse off after tax — that is a myth. You will always take home more money after a raise.
Does this calculator include state taxes or student loan repayments?
No. For the UK, this shows income tax and Class 1 employee NI only. Student loan repayments (Plan 1, Plan 2, Plan 5, postgraduate) are not included — these are additional deductions that depend on your loan plan and income. For the US, federal income tax only — state taxes (0–13% depending on state), Social Security (6.2%) and Medicare (1.45%) are not included. For a complete picture, add these separately.