After-Tax Salary Calculator: How to Work Out Your Real Take-Home Pay (2026 Guide)
Quick answer: Your after-tax salary (also called net pay or take-home pay) is what’s left from your gross salary once mandatory deductions are removed — Income Tax and National Insurance in the UK, or Federal Income Tax and FICA (Social Security + Medicare) in the US. An after-tax salary calculator does this math instantly, using the current tax year’s bands and rates, so you know exactly what lands in your bank account rather than the headline number on your offer letter.
This guide explains exactly how an after-tax salary calculator works, walks through the UK and US formulas step by step with real 2026 numbers, covers how your hourly rate, overtime, and even which US state you live in change the result, and shows worked examples at different income levels. You can also jump straight to our free after-tax salary calculator and plug in your own numbers.
Key Terms Explained
- Gross salary: Total pay before any deductions — the number on your offer letter or contract.
- Net salary / take-home pay / after-tax salary: What you actually receive after mandatory deductions. These three terms are interchangeable.
- Personal Allowance (UK): The amount you can earn each tax year before Income Tax applies (£12,570 for 2026/27).
- Standard deduction (US): The amount subtracted from gross income before Federal Income Tax is calculated ($16,100 for single filers in 2026).
- Marginal tax rate: The tax rate applied to your next pound or dollar of income — not your average rate across your whole salary.
- FICA: The combined US Social Security (6.2%) and Medicare (1.45%) payroll tax.
- National Insurance (NI): The UK’s equivalent social insurance contribution, funding state pension, NHS, and other benefits.
What Is an After-Tax Salary Calculator?
An after-tax salary calculator is a tool that converts your gross salary (what your contract or job offer states) into your net salary (what you actually receive after deductions). Instead of manually looking up tax bands, National Insurance thresholds, or FICA rates and doing the maths by hand, you enter your salary once and the calculator applies the correct formula automatically.
Most people search for an after-tax salary calculator for one of three reasons:
- Comparing job offers — two offers with different gross salaries can result in very similar take-home pay once tax bands are factored in.
- Budgeting — rent, mortgage payments, and monthly bills are paid from net income, not gross income.
- Checking a payslip — making sure your employer has deducted the correct amount of tax and National Insurance/FICA.
Gross Pay vs Net Pay: What’s the Difference?
Gross pay is your total salary before any deductions — the number usually quoted in a job advert or employment contract. Net pay (after-tax salary, or take-home pay) is what actually reaches your bank account after all mandatory deductions.
The gap between the two is made up of:
- UK: Income Tax + Class 1 National Insurance (and, where applicable, student loan repayments or pension contributions).
- US: Federal Income Tax + FICA (Social Security 6.2% + Medicare 1.45%), plus state income tax where it applies.
How to Calculate After-Tax Salary: Step by Step
The general formula behind every after-tax salary calculator is the same, whichever country you’re in:
Net Salary = Gross Salary − Income Tax − Social Security/National Insurance Contributions − Any Other Deductions
- Start with gross annual salary. If you’re paid hourly, multiply your hourly rate by your weekly hours and by 52 weeks first.
- Subtract your tax-free allowance. In the UK this is the £12,570 Personal Allowance; in the US it’s the standard deduction ($16,100 for a single filer in 2026).
- Apply the tax bands to what’s left. Each portion of income is taxed at the rate for that band — not your whole salary at one rate (this is called a progressive or marginal tax system).
- Subtract social insurance contributions. UK National Insurance or US FICA (Social Security + Medicare) is calculated separately from income tax, using its own thresholds.
- What’s left is your after-tax salary. Divide by 12 for monthly take-home pay, or by 52 for weekly.
Hourly Rate to After-Tax Salary: Quick Conversion
If you’re paid hourly rather than an annual salary, convert to gross annual salary first, then run the after-tax calculation on that figure:
Gross annual salary = Hourly rate × Hours per week × 52 weeks
If you work overtime, add it separately: Overtime pay = Hourly rate × Overtime multiplier × Overtime hours × 52, then add this to your regular gross pay before applying tax. For example, someone earning £18/hour for 40 hours a week, plus 5 hours of overtime at 1.5x, has a gross annual salary of (£18 × 40 × 52) + (£18 × 1.5 × 5 × 52) = £37,440 + £7,020 = £44,460 before tax. Our hourly-to-salary and overtime calculator does this conversion and the after-tax calculation in one step.
After-Tax Salary in the UK (2026/27 Tax Year)
UK take-home pay is reduced by two separate deductions: Income Tax and Class 1 National Insurance. Both are calculated on your gross salary using the rates below, published by HMRC / GOV.UK.
UK Income Tax bands 2026/27
| Band | Taxable income | Rate |
|---|---|---|
| Personal Allowance | Up to £12,570 | 0% |
| Basic rate | £12,571 to £50,270 | 20% |
| Higher rate | £50,271 to £125,140 | 40% |
| Additional rate | Over £125,140 | 45% |
The Personal Allowance shrinks by £1 for every £2 earned above £100,000, and disappears completely at £125,140 — official details are on the GOV.UK rates and allowances page. This creates an effective marginal rate of 60% on income between £100,000 and £125,140, since you lose allowance and pay 40% tax at the same time.
UK National Insurance (Class 1, employee) 2026/27
| Weekly earnings | Rate |
|---|---|
| Up to £242 | 0% |
| £242 to £967 | 8% |
| Over £967 | 2% |
Full current rates are published on GOV.UK’s National Insurance rates and categories page. Note that NI drops to 2% above the upper threshold, unlike income tax which keeps rising — this is why NI feels proportionally lighter for higher earners.
Worked example: £35,000 gross salary (UK)
- Taxable income after Personal Allowance: £35,000 − £12,570 = £22,430
- Income Tax (20% basic rate): £22,430 × 20% = £4,486
- National Insurance: (£35,000 − £12,570) × 8% = £1,794.40
- After-tax salary: £35,000 − £4,486 − £1,794.40 = £28,719.60/year (~£2,393/month)
After-Tax Salary in the US (2026 Tax Year, Federal)
US take-home pay is reduced by Federal Income Tax and FICA (Social Security + Medicare), and by state income tax in most states. The figures below are federal only, based on IRS federal income tax rates and brackets.
2026 Federal Income Tax brackets (Single filer)
| Rate | Taxable income |
|---|---|
| 10% | $0 to $12,400 |
| 12% | $12,401 to $50,400 |
| 22% | $50,401 to $105,700 |
| 24% | $105,701 to $201,775 |
| 32% | $201,776 to $256,225 |
| 35% | $256,226 to $640,600 |
| 37% | Over $640,600 |
The 2026 standard deduction is $16,100 for single filers and $32,200 for married filing jointly. FICA is a flat 6.2% Social Security tax (up to the $184,500 wage base, per the SSA Contribution and Benefit Base) plus 1.45% Medicare, with an extra 0.9% Additional Medicare Tax above $200,000.
Worked example: $60,000 gross salary, single filer (US, federal only)
- Taxable income after standard deduction: $60,000 − $16,100 = $43,900
- Federal tax: 10% on first $12,400 ($1,240) + 12% on next $38,000 up to $43,900 ($3,780) = $5,020 approx.
- Social Security: $60,000 × 6.2% = $3,720
- Medicare: $60,000 × 1.45% = $870
- After-tax salary (federal only): $60,000 − $5,020 − $3,720 − $870 = $50,390/year (~$4,199/month) — state tax would reduce this further depending on where you live.
US State Income Tax: How It Changes Your After-Tax Salary
The federal calculation above is only part of the picture for most Americans. Where you live can move your after-tax salary by several thousand dollars a year:
- No state income tax: Texas, Florida, Washington, Nevada, Tennessee, Wyoming, South Dakota, and Alaska don’t tax wages at the state level, so your federal after-tax figure is close to your final take-home pay.
- Flat-rate states: States like Colorado and Pennsylvania apply a single flat percentage regardless of income.
- Progressive-rate states: California and New York use their own tax brackets on top of federal tax, which can add 5–13% depending on income level.
This is why two people earning the same gross salary in different states can have noticeably different after-tax salaries — always check your specific state’s rules, or use a calculator that lets you compare federal-only figures against your state’s additional tax.
After-Tax Salary by Income Level (2026 Estimates)
| Gross annual salary | UK after-tax (approx.) | US after-tax, single, federal only (approx.) |
|---|---|---|
| £25,000 / $25,000 | £21,914 | $21,955 |
| £40,000 / $40,000 | £31,922 | $34,220 |
| £60,000 / $60,000 | £44,122 | $50,390 |
| £90,000 / $90,000 | £61,622 | $71,143 |
These are estimates for illustration — your actual after-tax salary depends on your tax code, filing status, benefits, pension contributions, and (in the US) which state you live in. Use the after-tax salary and take-home pay calculator for a figure based on your exact hours, overtime, and filing status.
Freelancers and Contractors: Working Backwards from After-Tax Income
If you’re self-employed, you can use the same logic in reverse: decide the after-tax income you need, then work out the gross day rate or hourly rate required to reach it once tax, National Insurance (UK, Class 2/4) or self-employment tax (US) are accounted for. Self-employed contributions are generally higher than employee rates, since there’s no employer contribution offsetting part of the cost — a common rule of thumb is to set your rate 25–35% higher than an equivalent employee salary to land at a similar after-tax income, though your specific figure depends on expenses, business structure, and filing status.
Real-World Example: Comparing Two Job Offers by After-Tax Salary
Imagine you’re a UK employee choosing between two offers: Offer A pays £48,000 with no overtime, and Offer B pays £42,000 base plus regular overtime that typically adds £6,500 a year. On paper, Offer A looks higher. But once you run both through an after-tax salary calculator:
- Offer A (£48,000): Income Tax £7,086 + NI £2,834.40 = after-tax salary of roughly £38,079.60
- Offer B (£48,500 total with overtime): Income Tax £7,186 + NI £2,874.40 = after-tax salary of roughly £38,439.60
Despite the two offers looking similar, Offer B ends up slightly higher after tax because the overtime is spread across the same bands as regular pay. This is exactly the kind of comparison an after-tax salary calculator is built for — comparing real take-home numbers rather than headline gross figures.
Common Mistakes When Calculating After-Tax Salary
- Applying the tax rate to your whole salary. Tax bands are marginal — only the portion of income inside a band is taxed at that band’s rate, not your entire salary.
- Forgetting National Insurance or FICA. Income tax alone understates your real deduction; NI (UK) and FICA (US) usually add several percentage points.
- Ignoring state tax (US). Federal calculations only tell part of the story — states like California and New York add meaningful additional tax, while states like Texas and Florida have none.
- Using last year’s thresholds. Personal Allowance, tax bands, and the Social Security wage base are adjusted most years — always check you’re using the current tax year’s figures.
- Not accounting for the Personal Allowance taper (UK). Earners above £100,000 lose part of their tax-free allowance, which creates an effective marginal rate of 60% between £100,000 and £125,140.
- Confusing bonus tax with a higher permanent rate. A large bonus can look heavily taxed in a single pay period because of how payroll systems annualise tax, but it’s usually corrected over the tax year.
How to Increase Your After-Tax Salary (Legally)
You can’t change the tax bands, but you can legally reduce how much of your income is taxed:
- Pension contributions (UK & US): Contributions to a workplace pension (UK) or a traditional 401(k)/IRA (US) are typically deducted before tax, lowering your taxable income.
- Salary sacrifice (UK): Schemes like cycle-to-work or additional pension contributions taken from gross pay reduce both Income Tax and National Insurance.
- Marriage Allowance (UK): Lets a lower-earning spouse transfer part of their unused Personal Allowance to a partner, if eligible.
- Health Savings Account / FSA (US): Pre-tax contributions to an HSA or FSA reduce taxable income while covering eligible medical expenses.
- Check your tax code (UK): An incorrect tax code is a common reason people are overtaxed — it’s worth checking yours matches your circumstances.
Why After-Tax Salary Matters
Gross salary is a useful headline figure, but it doesn’t tell you what you can actually spend or save. After-tax salary matters for:
- Comparing job offers fairly — a higher gross salary in a higher tax bracket can sometimes result in similar or even lower take-home pay than a slightly lower offer.
- Mortgage and rental applications — lenders and landlords look at net, affordable income, not gross salary.
- Deciding whether overtime is worth it — extra hours can push part of your income into a higher tax band, so it’s worth checking the actual after-tax value of overtime pay.
- Freelance and contract rate-setting — converting a target take-home income back into the gross day rate or hourly rate you need to charge.
Try the Free After-Tax Salary Calculator
Rather than working through the formulas by hand, our free overtime, hourly-to-salary and take-home pay calculator does the UK and US after-tax salary calculation for you — including overtime, National Insurance, and FICA — using current 2026 tax year rates. Enter your hourly rate or salary once and see your real take-home pay, annually and monthly, in seconds.
Frequently Asked Questions
What is an after-tax salary calculator?
An after-tax salary calculator is a tool that takes your gross salary and subtracts mandatory deductions — Income Tax and National Insurance in the UK, or Federal Income Tax and FICA in the US — to show your real take-home pay.
How do I calculate my after-tax salary manually?
Subtract your tax-free allowance from your gross salary, apply the relevant tax bands to what’s left (each band only applies to the income within that band), then subtract National Insurance or FICA contributions separately. What remains is your after-tax salary.
Is after-tax salary the same as take-home pay?
Yes. After-tax salary, net salary, net pay, and take-home pay all refer to the same thing: what you actually receive after all mandatory deductions.
Does an after-tax salary calculator include pension contributions?
A basic after-tax salary calculator typically covers only mandatory tax and social insurance deductions. Optional deductions like workplace pension contributions, student loans, or salary sacrifice schemes will reduce your take-home pay further and should be subtracted separately.
Why is my after-tax salary lower than expected?
The most common reasons are: not accounting for National Insurance or FICA on top of income tax, being pushed into a higher tax band by overtime or a bonus, or (in the US) forgetting to include state income tax.
Does overtime get taxed at a higher rate?
No. Overtime is taxed using the same bands as your regular salary. It can push part of your income into a higher band, but only that portion is taxed at the higher rate — not your whole paycheck.
What’s the difference between the UK and US after-tax salary calculation?
The UK uses Income Tax plus a single National Insurance contribution. The US uses Federal Income Tax plus FICA (Social Security + Medicare), and in most states, a separate state income tax on top of the federal calculation.
How much of my salary goes to tax in the UK?
For most UK employees earning between £25,000 and £50,270, roughly 20–28% of gross salary goes to Income Tax and National Insurance combined, though the exact figure depends on your tax code and other deductions.
How much of my salary goes to tax in the US?
Federal tax and FICA typically take 18–30% of gross salary for most earners, before any state income tax is added — the exact percentage depends on filing status and which state you live in.
Can my after-tax salary change during the year?
Yes. A pay rise, bonus, change in tax code, new benefits, or a change in pension contributions can all change your after-tax salary partway through the tax year.
Related Guide
Want to see your salary after tax broken down weekly, monthly, and by pay period — plus how Scotland compares to the rest of the UK? Read our companion guide: Salary After Tax Calculator: Weekly, Monthly & Annual Take-Home Pay (2026).
See also: How to Calculate Salary: Hourly, Daily, Weekly, Monthly & Annual (2026 Guide) for the core gross-salary formulas, pro-rata, pay rises, and overtime.
Sources
Figures in this guide are based on published 2026 tax year rates from GOV.UK / HMRC (Income Tax), GOV.UK (National Insurance rates), the IRS (Federal income tax rates and brackets), and the Social Security Administration (Contribution and Benefit Base). Figures are for guidance only and don’t account for individual circumstances such as tax codes, benefits-in-kind, or state-specific US taxes — for an exact figure, use the calculator above or consult a qualified accountant.
