UK 60% Tax Trap Calculator

Real HMRC 2025-26 rates: income tax bands, NI Class 1, student loan thresholds, and the personal-allowance taper (Income Tax Act 2007 s.35). Plots your marginal-rate curve £80k–£140k and shows three pension-contribution scenarios for escaping the 60% wedge.

⏱️ 2 minutes • 💪 Quick

How This Tool Works

📋 Purpose

The UK tax system has its highest marginal rate where most calculators don't even check: between £100,000 and £125,140 of adjusted income. HMRC quietly removes £1 of the £12,570 personal allowance for every £2 you earn above £100,000, creating an effective 60% marginal rate (62% with NI, 71% with student loan). It's the single largest tax planning opportunity in the UK system — every £1 of pension contribution inside the trap saves 60-71p of tax. This calculator uses real HMRC 2025-26 rates to show your exact marginal rate, the £-amount the trap costs you, and three optimisation scenarios for escape.

⚙️ How It Works

  1. 1
    Enter gross salary, bonus, and current pension %.
  2. 2
    Pick student loan plan and tax jurisdiction.
  3. 3
    Real HMRC 2025-26 bands compute income tax, NI, student loan.
  4. 4
    Personal allowance taper applied per ITA 2007 s.35.
  5. 5
    Marginal-rate curve plotted £80k–£140k with trap highlighted.
  6. 6
    Three pension scenarios show the optimal escape route.

UK 60% Tax Trap Calculator · 2025-26

Are you stuck in the £100k–£125,140 personal-allowance taper?

When adjusted income exceeds £100,000, HMRC withdraws £1 of personal allowance for every £2 of income — pushing the effective marginal rate to ~60% (and ~62% with student loan).

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Complete Guide: The UK 60% Tax Trap (2025-26)

How the personal-allowance taper works, why £100k is the cliff, and the pension contribution that gets you out.

📅 Last updated: April 2026

Quick Tips

Jump-start your understanding with these essential tips

These are adjusted-income figures, not gross. If your gross is £130,000 and you put 10% into pension, your adjusted is £117,000 — squarely in the trap.

Each £1 contributed between £100k and £125,140 saves 60p in tax — the highest marginal relief in the UK system. Above £125,140 it drops to 45p + 2p NI = 47p.

You can normally only contribute £60,000 across all schemes (employer + employee) without a tax charge. Tapering reduces this for incomes above £260,000. Use carry-forward to use unused allowance from the prior 3 years.

Most large employers offer "bonus sacrifice" — your bonus goes straight into pension before any tax is deducted, dodging the entire 60% wedge. It also saves the employer NI (which they often share).

If either parent's adjusted income exceeds £60,000 (2024 onwards), child benefit is clawed back at 1% per £200 of excess, fully gone at £80,000. Pension contributions reduce this charge too — sometimes worth thousands per child.

Step-by-Step Guide

Follow these steps to get the most from this tool

This is the contractual amount before any deductions. If you're paid monthly, it's annualised — £8,750 × 12 = £105,000. Don't include bonus or benefits-in-kind here.

Use a realistic figure — a forecast bonus is fine. Bonuses are taxed exactly like salary at the moment of payment, including PA-taper effects.

This should be the gross % going into pension via salary sacrifice or net-pay. If you don't know — check your last payslip; the line "Pension EE" divided by gross pay × 100 is the figure.

Student loan adds 9% (or 6% PG) to your marginal rate above the threshold, pushing the trap effective rate up to 71%+. Scottish residents face slightly different bands.

The hero shows your true marginal % — what you keep on the next £1 you earn. Anything over 50% means the taper is biting.

The "Escape the trap" scenario shows the pension contribution that brings you to exactly £100,000 adjusted income. Compare net + pension across scenarios — total compensation usually rises despite "less take-home".

Advanced Topics

Deep dives for advanced users

The marginal income-tax rate inside the taper is 60% (40% + 20% allowance loss). Add 2% NI = 62%. Add 9% student loan = 71%. Add Scottish higher-rate (42% vs 40%) = 65% baseline / 74% with student loan. The "60% trap" name describes the simplest case (40% taxpayer, no loan, rUK).

Salary-sacrifice arrangements are HMRC-approved if structured correctly: your contractual salary is reduced before payment, and the employer makes a pension contribution from the saving. They cannot be retrospective. Most large employers run an annual "lifestyle benefits" window in February-March where you can elect to sacrifice the upcoming bonus. Combined NI saving (employee 2% + employer 13.8%) often gets partially returned to you, multiplying the effective relief.

If you didn't use your full £60,000 annual allowance in the prior 3 tax years, you can carry it forward — meaning you could legitimately contribute up to £240,000 in a single year (£60k current + £60k × 3 carry-forward) provided you have the earnings to support it. Useful for one-off bonus dumps.

HMRC has anti-avoidance rules preventing you from drawing tax-free cash from one pension and immediately recycling it into another to claim more relief. The thresholds are technical (~30% of recycled amount over £7,500) — get advice if you're close to retirement and considering this.

If you're a high-earner buying property, see UK Stamp Duty 2026 and Conveyancing Fees. For broader money planning, the UK Currency Converter uses ECB live rates.

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Frequently Asked Questions

Template reviewed: April 2026Tool outputs can refresh continuously from live APIs where available.

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