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Tax trap deep dive · 2026/27

The Tapered Annual Allowance — £10,000 cliff for high earners

The £60,000 pension Annual Allowance sounds generous — until you hit the taper. For earners above £260,000 of adjusted income, the AA reduces by £1 for every £2 of excess income, down to a £10,000 floor. Breach it and you face an Annual Allowance Charge at your marginal income tax rate. This is one of the most expensive UK tax traps, and the maths catches people out routinely.

7-minute read

The Tapered Annual Allowance reduces the £60,000 pension annual contribution cap for high earners. If your threshold income exceeds £200,000 AND adjusted income exceeds £260,000, the AA tapers by £1 for every £2 of adjusted income above £260,000, down to a £10,000 floor (reached at £360,000 adjusted income). Contributing above the tapered AA triggers an Annual Allowance Charge at your marginal income tax rate — typically 45% for affected earners.

The two-threshold test — both must be crossed

The taper only applies if both these conditions are met in the tax year:

  1. Threshold income exceeds £200,000. This is broadly your total taxable income minus your own pension contributions (but NOT employer or salary-sacrifice contributions).
  2. Adjusted income exceeds £260,000. This is your total taxable income plus ALL pension contributions (yours, employer, salary sacrifice).

If you fail either test, you keep the full £60,000 AA. So someone earning £250,000 with no pension contributions has adjusted income £250k (below £260k) — the taper doesn’t apply yet.

Threshold vs adjusted income — the trap within the trapMany high earners assume that salary sacrifice protects them from the taper. It does for threshold income, but adjusted income adds the sacrifice back. So a £300k earner sacrificing £40k into pension still has £300k adjusted income — well into the taper.

How the taper itself works

If both threshold income (>£200k) AND adjusted income (>£260k) are exceeded, your AA reduces:

Adjusted incomeTapered AALost AA vs £60k
£260,000 or under£60,000£0
£280,000£50,000£10,000
£300,000£40,000£20,000
£320,000£30,000£30,000
£340,000£20,000£40,000
£360,000+£10,000 (floor)£50,000

Worked example — £320,000 senior employee

Scenario: Senior employee, £320k total comp

Pay structure:

  • Base salary: £250,000
  • Bonus: £50,000
  • Employer pension contribution: £20,000 (8% of base)
  • Total adjusted income: £250k + £50k + £20k = £320,000
  • Total threshold income (excludes employer pension): £250k + £50k = £300,000

Both thresholds crossed. Tapered AA = £60,000 − (£320,000 − £260,000) ÷ 2 = £30,000.

This employee can only contribute £30,000 to pension this year before triggering an AA charge — but the employer is already contributing £20,000, leaving only £10,000 of personal headroom.

If they tried to contribute their preferred £40,000 personal SIPP top-up:

  • Total contributions: £20,000 employer + £40,000 personal = £60,000
  • Excess over tapered AA: £60,000 − £30,000 = £30,000
  • AA charge at 45% marginal rate: 45% × £30,000 = £13,500

The £40,000 SIPP contribution that felt sensible has cost an extra £13,500 in tax — completely eliminating the tax relief on the excess.

Carry-forward — the only legitimate workaround

Unused AA from the previous 3 tax years can be carried forward and used in the current year — even if the taper applies now. To use carry-forward you need:

  1. Pension scheme membership in each prior year (no contribution required)
  2. Sufficient earnings in the current year to justify the gross contribution
  3. Use the current-year AA first, then earliest carry-forward first

Critically: the carry-forward is the tapered amount that applied in that year, not £60,000. So if you had the £10,000 floor in 2024/25, you can only carry forward £10,000 from that year (less any actual contributions).

Worked carry-forwardSame £320k earner from above. AA history: 2023/24 = £40,000 (taper), £15,000 contributed → £25,000 unused. 2024/25 = £40,000 (taper), £30,000 contributed → £10,000 unused. 2025/26 = £40,000 (taper), £40,000 contributed → £0 unused. 2026/27 current AA: £30,000.

Total available headroom 2026/27 = £30,000 (current) + £0 + £10,000 + £25,000 = £65,000. So the £40,000 SIPP top-up would now fit within the available £65,000 (less the £20,000 employer = £45,000 personal headroom). No AA charge.

How to actually pay the AA charge

If you breach the AA, you have two ways to settle the charge:

Mandatory Scheme PaysIf your AA charge exceeds £2,000 AND the tapered AA exceeds £10,000, the pension scheme MUST offer Scheme Pays on request. This is a statutory right — see the Finance Act 2011 and HMRC Pensions Tax Manual PTM056510.

The defensive playbook

Step 1: Calculate threshold and adjusted income earlyModel both numbers as soon as bonus / RSU vest / dividend timing becomes clear. The pension annual allowance calculator handles tapering, carry-forward and DB scheme accrual.
Step 2: If close to thresholds, time pension contributions to year-endWait until you have the full income picture before making large personal SIPP top-ups. Many senior employees structure their personal contribution after the Q4 bonus is confirmed.
Step 3: Check carry-forward before reducing current contributionsThe current-year AA is used first. Unused capacity in prior years can absorb a current-year excess. Often people stop contributing entirely when they could legitimately still contribute substantially via carry-forward.
Step 4: Consider Bonus Sacrifice strategicallySalary sacrifice of bonus into pension reduces threshold income (good for the threshold test) but increases adjusted income by exactly the sacrificed amount (bad for the adjusted income test). Net effect: usually still beneficial because the sacrificed amount is then in the pension at full tax relief, but it doesn’t remove the taper itself.
Step 5: Get the Scheme Pays paperwork readyIf you might breach AA, ask your pension provider for the Scheme Pays election form proactively. Deadlines exist (typically 31 July following the tax year). Missing them means paying from your own pocket.

Defined benefit schemes — the taper bites differently

If you’re in a defined benefit (final salary or CARE) pension scheme — common for senior NHS, civil service, teachers, judges — the AA calculation uses your "pension input amount":

Pension Input Amount = (Annual accrual × 16) + CPI inflation adjustment

For senior NHS consultants with high reckonable pay and several years’ service, a typical pension input amount can be £60,000-£100,000 per year. With the tapered AA at £10,000, the excess can easily be £50,000+ — triggering an AA charge of £22,500 at 45%.

This is the well-publicised "NHS consultant pension trap" of recent years. The NHS Pension Scheme and most public-sector schemes now offer Scheme Pays as a default for affected members.

Model your tapered Annual Allowance

The pension annual allowance calculator handles the threshold/adjusted income tests, the taper formula, carry-forward from prior years, and DB scheme accrual.

Open the AA calculator →

Sources and methodology

Tapered Annual Allowance from gov.uk/tax-on-your-private-pension/annual-allowance. Detailed rules in HMRC Pensions Tax Manual PTM056510. Threshold/adjusted income definitions from Finance Act 2011 (as amended). Scheme Pays from gov.uk Self Assessment HS345. Defined benefit input amount calculation from PTM053100.

UK Tax Drag is not authorised by the Financial Conduct Authority and does not provide regulated financial advice — see the content disclaimer for the full position. The methodology page documents how every calculator is built and reviewed.

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