Income Tax Calculator UK 2025/26 – Take Home Pay Calculator | WiseInvestorPath
💷 Tax Calculator
Income Tax Calculator UK 2025/26
See exactly how much income tax and National Insurance you pay — and what you actually take home. Updated for the 2025/26 tax year.
💷 Income Tax & Take Home Pay Calculator
England, Wales & Northern Ireland · 2025/26 tax year · PAYE (employed)
£
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Annual Take Home Pay
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after all deductions
Monthly
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Weekly
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Daily
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Full Deductions Breakdown
Gross Salary
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− Pension Contribution
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− Income Tax (PAYE)
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− National Insurance
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− Student Loan
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= Net Take Home
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Effective Tax Rate
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Marginal Rate
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Personal Allowance
£12,570
Tax Band
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Your Salary Across Tax Bands
Personal Allowance (0%)
Basic Rate (20%)
Higher Rate (40%)
Additional Rate (45%)
UK Income Tax Rates 2025/26
Income tax is calculated on a tiered basis — you pay each rate only on income within that band. Your first £12,570 (Personal Allowance) is always tax-free.
Band
Taxable Income
Rate
Max Tax in Band
Personal Allowance
£0 – £12,570
0%
£0
Basic Rate
£12,571 – £50,270
20%
£7,540
Higher Rate
£50,271 – £125,140
40%
£29,948
Additional Rate
Above £125,140
45%
Unlimited
National Insurance 2025/26
Employees pay Class 1 NI: 8% on earnings from £12,570 to £50,270, and 2% above £50,270. The main rate was cut from 12% to 8% in January 2024, saving most workers several hundred pounds per year.
The Personal Allowance Trap: £100K–£125,140
For every £2 earned above £100,000, you lose £1 of your Personal Allowance — creating an effective 60% marginal tax rate on income in that band. Pension contributions are the cleanest solution: every £1 contributed restores allowance and saves 60p in tax for earners in this range.
Student Loan Thresholds 2025/26
Plan 1: 9% on earnings above £24,990/year
Plan 2: 9% on earnings above £27,295/year
Plan 4 (Scotland): 9% on earnings above £31,395/year
Postgraduate: 6% on earnings above £21,000/year
Frequently Asked Questions
Income tax is calculated on taxable income — your gross salary minus your Personal Allowance and pension contributions. On a £45,000 salary with a 5% pension contribution (£2,250), taxable income is £42,750 minus £12,570 = £30,180 in the basic rate band. Tax = £30,180 × 20% = £6,036. The key point: pension contributions reduce the taxable income figure before tax is calculated, creating real savings at your marginal rate.
1257L is the standard tax code for 2025/26. The number (1257) represents your tax-free Personal Allowance ÷ 10 (£12,570 ÷ 10 = 1,257). L means you receive the standard Personal Allowance. Other common letters: M (Marriage Allowance received), N (transferred to spouse), K (you owe additional tax), 0T (no Personal Allowance). If your code is wrong, contact HMRC — it affects every monthly payslip.
Pension contributions receive tax relief at your marginal rate. For a 20% taxpayer: every £100 contributed costs you £80 net (£20 relief added). For a 40% taxpayer: the same £100 contribution costs £60. For salary sacrifice via employer, you also save National Insurance. Those earning £100K–£125,140 save 60p in tax per £1 contributed and restore their Personal Allowance, making pension contributions in this band extremely efficient.
Important: Covers England, Wales & Northern Ireland only (Scotland has different rates). 2025/26 estimates — verify with HMRC. Not tax advice.