UK Tapered Annual Allowance Calculator
Work out your personal Annual Allowance for 2024/25 in ten seconds. Handles the taper from £260k adjusted income down to the £10k minimum floor, the £200k threshold-income exemption, and shows how much carry-forward headroom you'd need to fund your target contribution without an Annual Allowance Charge.
How the taper actually works
The Annual Allowance for the 2024/25 tax year is £60,000 by default. The taper only bites if both of these are true:
- Threshold income above £200,000, AND
- Adjusted income above £260,000.
Threshold income is (roughly) your taxable income minus your own gross pension contributions. Adjusted income is your taxable income plus employer contributions and salary sacrifice. The two-test structure means most high earners can escape the taper entirely by making their own contributions bring threshold income below £200k.
Once both thresholds are breached, your Annual Allowance is reduced by £1 for every £2 of adjusted income above £260,000, floored at £10,000. So the maths is:
AA = max(£10,000, £60,000 − max(0, (adjusted income − £260,000) ÷ 2))
| Adjusted income | AA reduction | Your AA |
|---|---|---|
| Up to £260,000 | £0 | £60,000 |
| £280,000 | £10,000 | £50,000 |
| £300,000 | £20,000 | £40,000 |
| £320,000 | £30,000 | £30,000 |
| £340,000 | £40,000 | £20,000 |
| £360,000 and above | £50,000 | £10,000 (floor) |
The three-year carry-forward rescue
This is the single biggest lever for high earners hit by the taper. You can use unused Annual Allowance from the previous three tax years — 2021/22, 2022/23 and 2023/24 — applied oldest-first, on top of this year's allowance.
If you didn't max out contributions in those years (most people don't), the unused headroom carries. That means someone with this year's tapered AA of £10,000 could realistically fund a £150,000+ single-year contribution without an Annual Allowance Charge — and every £1 of it in the trap zone earns 60–62% effective tax relief. Very few personal-finance moves beat this at high income.
Threshold-income escape: the strategic self-contribution
Because the taper only bites when both £200,000 and £260,000 thresholds are breached, a well-timed personal contribution can pull your threshold income below £200,000 and fully preserve the £60,000 AA. This is the "escape hatch" strategy: pick your own contribution amount to keep threshold income under £200k, then let employer/sal-sac fill up to the full £60,000 headroom.
Example: taxable income £230,000, employer contribution £30,000. Without your own contribution: threshold income £230k (over £200k) and adjusted income £260k (at the line — no taper). If income creeps to £232k mid-year, taper starts. Solution: contribute £32,001 personally to pull threshold income to £197,999, keeping you out of the tapered zone regardless of what adjusted income does.
Should you contribute even above the AA?
Sometimes yes. If your employer's contribution is generous (e.g. 15% match on £300k salary = £45k of "free" money), the Annual Allowance Charge — even at 45% + 2% — often leaves you materially better off than declining the employer money. Model the two after-tax outcomes:
- Take it as pension: gross goes in, tax and charge come out. Grows tax-free. 25% tax-free at retirement (up to Lump Sum Allowance), rest taxed at marginal.
- Take it as salary: 47% marginal (additional rate + NI) or 62% marginal (trap zone) leaves you with 38–53p per £1. Invested in ISA/GIA, no LSA arbitrage.
For most PAYE earners above £260k, route 1 still wins even with the AA charge, because the 25% tax-free lump sum is a one-time arbitrage the ISA route can't replicate. But the margin is narrower than you'd think — model it before deciding.
Uses 2024/25 UK tax rules. Not tax or investment advice — consult a regulated financial adviser before making pension contributions above ordinary levels or triggering an Annual Allowance Charge.
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Frequently asked questions
What is the tapered Annual Allowance?
The standard pension Annual Allowance for 2024/25 is £60,000 — the maximum gross pension contribution (yours + employer) that qualifies for tax relief in a year. For higher earners, the allowance tapers down by £1 for every £2 of adjusted income over £260,000, to a minimum of £10,000 at adjusted income of £360,000 or more. Contributions above your personal Annual Allowance face an Annual Allowance Charge that effectively removes the tax relief.
What's the difference between threshold income and adjusted income?
Threshold income is roughly your taxable income minus your own gross personal pension contributions. Adjusted income is roughly your taxable income plus your employer's pension contributions (and salary-sacrifice contributions). The tapered AA only kicks in if BOTH conditions are met: threshold income above £200,000 AND adjusted income above £260,000. Below £200,000 threshold income, you get the full £60,000 regardless of adjusted income.
How is the tapered allowance calculated?
If both thresholds are breached, the reduction is (adjusted income − £260,000) ÷ 2, capped at a £50,000 reduction (which gives the minimum AA of £10,000). So at adjusted income £280k the AA is £50k, at £300k it's £40k, at £320k it's £30k, at £340k it's £20k, and at £360k+ it's £10k.
Can I carry forward unused allowance?
Yes. You can use unused Annual Allowance from the previous three tax years, applied oldest-first. This is the biggest lever for high earners with tapered AA — even if this year's allowance is £10,000, you might have £150,000+ of unused allowance to draw on if you didn't max out in previous years. You need to have been a member of a UK-registered pension scheme in the years you carry forward from.
What is the Annual Allowance Charge?
If your total pension contributions (yours + employer) in a tax year exceed your personal AA (including carry-forward), the excess is added to your taxable income and taxed at your marginal rate. This effectively removes the tax relief on the excess. It's reported on your Self Assessment tax return, or in some cases you can elect 'Scheme Pays' to pay the charge from the pension itself.
Does this apply to Scottish taxpayers?
Yes — the Annual Allowance thresholds are UK-wide (Westminster-set) and the same for Scotland, England, Wales and Northern Ireland. Only the income tax rates differ. If you're a Scottish taxpayer with adjusted income £280,000, your AA is still £50,000. Scottish top-rate is 48%, so an Annual Allowance Charge on the excess costs proportionally more.
What counts as employer contributions for the adjusted income figure?
Employer contributions include: direct employer payments to defined contribution schemes, the employer NI-avoided portion of salary sacrifice (added back), and — for defined benefit schemes — the 'pension input amount' calculated by your scheme administrator (typically 16× annual accrual increase). For most PAYE employees with a workplace DC scheme, it's simply the sum of employer contributions on your payslip plus any salary-sacrifice amount.
Am I better off just paying the charge and keeping the contribution?
Sometimes yes. If your employer's contribution is generous (e.g. 15% match at £300k salary = £45k of 'free' money) then even paying an Annual Allowance Charge at 45% + 2% on the excess leaves you materially better off than declining the contribution. Model it: after-tax value of what lands in the pension vs. after-tax value of the same money as salary. Above the taper zone the pension route usually still wins because of the 25% tax-free lump sum on withdrawal.
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