UK Pension Carry Forward Explained 2025/26 — Use 3 Prior Years of Annual Allowance

What is carry-forward?

Each UK tax year you have an Annual Allowance — the maximum amount that can be paid into your pensions (employer + employee + any third-party contributions, plus the deemed input value of defined-benefit accruals) without triggering a tax charge. For 2025/26 the standard AA is £60,000. If you used less than the AA in a tax year, the unused balance is "carried forward" for up to three further tax years. In the current year you can therefore use your fresh £60,000 plus any unused slack from each of the three preceding years.

In the perfect case — three years of full unused AA at £60,000 each — the theoretical maximum tax-relieved pension input this year is £60,000 + £60,000 × 3 = £240,000. Such a contribution at a 45% marginal rate of income tax produces gross relief of £108,000. Even at the basic 40% higher rate the relief is £96,000. This is why carry-forward planning becomes urgent when a once-in-a-career income event arrives — a bonus, an exit, a settlement, the sale of a business — and the saver has weeks to make a decision.

Eligibility — the membership test

The single most important eligibility condition is that you must have been a member of a UK registered pension scheme in every one of the three preceding tax years. Active contributions are not required — passive (deferred) membership counts. You do not need to have been in the same scheme that you now want to contribute to, and you do not need an employer scheme — a private SIPP held throughout the three-year window is sufficient.

The membership test catches surprisingly many people. Examples of failure include:

• An expat who lived and worked outside the UK in any of the prior three years with no UK scheme retained.
• A new entrant to the UK workforce who was first auto-enrolled only this year.
• A career-breaker who actively cashed out and closed every pension in one of the prior years.

If you are unsure, your pension provider can confirm scheme membership history in writing. State Pension entitlement is not a registered scheme and does not satisfy the test on its own.

Order in which carry-forward is used

The legislation prescribes a strict order of use, and the order matters:

1. Current year's AA first — your fresh £60,000 (or tapered amount).
2. Oldest prior year next — i.e. the year that is about to drop out of the window.
3. Then the next oldest.
4. Finally the most recent prior year.

The consequence: unused AA from a year more than three tax years ago is gone forever. There is no "banking" mechanism beyond the rolling three-year window. This makes early contributions important if you suspect a large future event will exceed even £240k — sustained moderate contributions in the years before a planned exit will keep all three prior-year slots full and preserve the maximum future capacity.

Tapered AA — history and interaction

Since 6 April 2016, the Annual Allowance has been taperedfor very high earners. The mechanics have changed several times. For 2025/26 the rule is: for every £2 of "adjusted income" above £260,000, the Annual Allowance reduces by £1, subject to a floor of £10,000. Adjusted income broadly includes salary, bonuses, dividends, rental and savings income, plus any employer pension contributions made on your behalf. There is a parallel "threshold income" test (£200,000) that disapplies the taper if you are below it on a different measure.

For carry-forward, the rule is that each prior year contributes its own actual AA at the time — including any taper that applied that year. If you were heavily tapered in 2023/24 with an AA of £20,000 of which you used £15,000, your carry-forward from 2023/24 is £5,000 — not £45,000. The historical AA limits used in carry-forward calculations are:

Note 2022/23 — the AA was £40,000 that year. Carry-forward from 2022/23 into 2025/26 therefore tops out at £40,000 of unused AA, not £60,000. From 2026/27 onwards, 2022/23 drops out of the window entirely.

Worked example 1 — straightforward

Worked example 2 — the relevant earnings cap

Worked example 3 — tapered AA carry-forward

MPAA — the carry-forward killer

The Money Purchase Annual Allowance (MPAA) is triggered when you flexibly access a defined-contribution pension — typically by drawing taxable income from flexi-access drawdown or taking an uncrystallised funds pension lump sum (UFPLS). Once triggered, your annual money-purchase allowance is permanently limited to £10,000 per tax year, and crucially:

• You cannot use carry-forward to lift the £10k MPAA for DC contributions.
• If you exceed £10k of DC input in a post-trigger year, an annual-allowance charge applies on the excess.
• You can still use carry-forward to support defined-benefit accruals via the "alternative AA" test, which uses an alternative AA of £50,000 — so DB savers retain some carry-forward, but DC savers effectively lose it.

Tax-free lump sums alone (the 25% pension commencement lump sum without taking taxable income) do not trigger MPAA. Buying a guaranteed annuity does not trigger MPAA. Small-pot lump sums taken under the small-pots rules (up to three pots of £10k each) also do not trigger MPAA. The distinction matters enormously to someone considering accessing a pension before fully retiring.

Why people actually use carry-forward

Most people never use carry-forward — their year-on-year inputs stay well below the AA. The handful of scenarios where it suddenly becomes critical:

• Large bonus or commission — particularly in financial services, where a £200k+ bonus arrives in a single tax year.
• Business sale proceeds — a Ltd company shareholder selling out may want to make a final, large employer pension contribution before completion to shelter cash from CGT/income tax.
• Inheritance or windfall — converting savings into a pension wrapper to defer income tax on investment income.
• Settlement or redundancy payment — a large termination payment can be partly directed into a pension via the employer instead of being taken as taxable cash.
• Year of unusually high income — sole traders or self-employed professionals with one-off high-margin years.

The common thread: a one-off income shock combined with available pension capacity. The tax saving scales with the marginal rate of income tax in the year of contribution, so the most valuable use of carry-forward typically occurs in a year when income would otherwise reach the additional-rate band.

HMRC reporting

You do not need to apply for carry-forward in advance or notify HMRC that you intend to use it — the rules apply automatically. However:

• Your pension scheme will issue a Pension Savings Statement (PSS) by the following 6 October if your pension input for the tax year exceeded £60,000. The PSS gives the precise figures you need to determine whether you exceeded AA + carry-forward.
• If your total pension input exceeds AA + carry-forward, you must complete the "Pension Charges" page of Self Assessment and pay an annual allowance charge at your marginal income tax rate on the excess.
• In some cases, you can elect for the scheme to pay the charge on your behalf ("Scheme Pays"), which deducts the tax from your eventual benefits — useful if you do not have the cash to pay personally.
• Carry-forward computation itself is not reported separately — but you should retain a clear paper trail showing scheme membership and inputs for each of the three prior years in case HMRC enquires.

HMRC's detailed guidance is in the Pensions Tax Manual: PTM055000 for carry-forward, PTM056000 for the AA charge mechanics, and PTM057000 for tapered AA.

Practical pitfalls

• Forgetting the membership test — check every one of the three prior years, not just the most recent. A single missing year breaks the chain.
• Ignoring the taper — high earners must compute prior-year AA using the taper that applied each year, which usually requires reconstructing adjusted income.
• Confusing 2022/23 with later years — 2022/23 had a £40,000 AA, not £60,000. Carry-forward from that year tops out at £40,000.
• Missing the MPAA flag — many savers do not realise that taking even a small taxable income from drawdown triggers MPAA permanently. Once triggered, DC carry-forward is effectively dead.
• Employer matching — large salary-sacrifice contributions may breach scheme-internal limits even when within the tax AA. Some schemes cap employer contributions at a percentage of salary regardless of tax law.
• Scheme rules — a particular pension scheme may not accept contributions large enough to use full carry-forward. Switching to a SIPP is often necessary.
• Timing of payment — contributions must be physically received by the scheme before 6 April to count for the tax year just ending. Bank-transfer cut-offs matter; many providers stop accepting contributions in late March.
• National Insurance interaction — salary-sacrifice contributions save both income tax and NI for the employee, plus employer NI for the company. A traditional "net pay" or "relief at source" contribution saves income tax but not NI.

Bringing it together

Pension carry-forward is a powerful but unforgiving rule. It rewards savers who maintain UK scheme membership continuously, who keep their inputs moderate in normal years, and who plan ahead for unusual-income years. It punishes savers who let scheme membership lapse, who trigger MPAA without understanding the consequence, or who let three years slide by with no contribution at all and then assume the £240,000 ceiling is automatically available. For a one-off large pension contribution after a bonus, sale or windfall, the rule converts up to four years of allowance into a single year of relief at potentially the additional rate — among the most valuable single tax planning levers in the UK system. As always, the maths is easy; the eligibility and timing are where claims fail.