How does pension annual allowance carry forward work?

Full answer

Pension carry forward is a valuable tool for those with irregular income (such as a bonus year, business sale, or inheritance) wanting to make a large single-year pension contribution while still qualifying for full tax relief. **The basic mechanism** If you did not use your full £60,000 annual allowance in any of the previous three tax years, you can carry forward the unused portion and add it to your current year's allowance, potentially allowing contributions well above £60,000 in the current tax year while still qualifying for tax relief on the full amount, up to the combined carried-forward total. **Order of use: earliest year first** When using carry forward, unused allowance from the earliest of the three previous years must be used first, before more recent years' unused allowance -- this ordering matters if you plan to use carry forward again in future years, since it affects how much remains available from each specific year. **You must have been a pension scheme member** To carry forward unused allowance from a particular tax year, you must have been a member of a registered pension scheme in that year (even if you made no or minimal contributions) -- someone who was not part of any pension scheme in a given year cannot carry forward allowance from that specific year. **Relevant UK earnings still limit tax relief** Even with substantial carried-forward allowance available, you can only receive tax relief on pension contributions up to 100% of your relevant UK earnings for the current tax year (or £3,600 if lower, or if you have no earnings) -- carry forward increases the ALLOWANCE ceiling, but does not override this separate earnings-based limit on how much you can personally contribute with tax relief. **Worked example** Someone earning £150,000 this tax year (well above £60,000) contributed only £20,000 to their pension in each of the previous three tax years (leaving £40,000 unused each year, assuming the same £60,000 allowance applied), and was a pension scheme member throughout. They now want to make a large contribution following a bonus. Using carry forward: £40,000 × 3 years = £120,000 of unused allowance, plus this year's own £60,000 allowance = £180,000 total potential allowance -- though their contribution is still capped at their relevant UK earnings for the current year (£150,000 in this example), so they could contribute up to £150,000 with full tax relief in this scenario. **Interaction with the tapered annual allowance** For very high earners subject to the tapered annual allowance (reducing from £60,000 down to a floor of £10,000 for those with very high adjusted income), the amount available to carry forward from each earlier year reflects whatever their allowance was in that specific year, which may itself have been reduced by tapering -- the calculation can become complex for high earners and often benefits from professional advice. **Practical tip** If you expect a significant one-off income event (business sale, large bonus, inheritance) and want to make a substantial pension contribution to reduce your tax bill for that year, check your carry forward availability from the previous three tax years well in advance, and confirm you have sufficient relevant UK earnings in the current year to support the contribution, since this earnings-based cap is a separate and sometimes overlooked constraint.

Try the calculator

More answers

• What is the Money Purchase Annual Allowance in 2026/27?