Annual Allowance Calculator

What this calculator does and who it is for

The annual allowance is the single most important number for anyone contributing to a pension in the UK: it caps how much you can pay in each tax year while still receiving tax relief. This calculator turns that rule into a plain-English answer to the question “how much can I still put in this year?” It takes your income and contribution figures, works out whether the standard allowance, a tapered allowance, or the Money Purchase Annual Allowance applies to you, adds any carry-forward you can use, and then tells you your remaining headroom — or warns you if you have gone over.

It is built for higher earners weighing a large one-off contribution, business owners deciding on employer contributions, and internationally mobile professionals returning to UK pension saving who need to sanity-check the position before committing money. If you want the full rules rather than a quick estimate, the complete annual allowance guide sits behind this tool, and the wider UK Pensions hub covers everything from tax relief to drawdown.

How the calculator works

You enter four things: your adjusted income (broadly your total taxable income plus pension contributions), your threshold income (roughly your income before pension contributions), your contributions this tax year (employee plus employer), and your contributions in each of the previous three years. A single tick-box tells the calculator whether you have flexibly accessed a pension.

The logic then runs in three steps:

• Set your allowance. It starts from the standard £60,000. If your threshold income is above £200,000 and your adjusted income is above £260,000, the tapered allowance applies: the allowance is cut by £1 for every £2 of adjusted income over £260,000, floored at £10,000. If you have flexibly accessed a pension, the allowance is instead capped at the £10,000 Money Purchase Annual Allowance.
• Add carry-forward. Unless the MPAA applies, it adds the unused allowance from each of the last three years (the standard allowance for that year, less what you contributed) to give your total available this year.
• Compare with your contributions. It subtracts this year’s contributions from your total available allowance. A positive number is your remaining headroom; a negative number is an excess that triggers an annual allowance charge, shown in red.

Key assumptions and limitations

To stay usable, the tool simplifies in a few places you should know about. It assumes each of the previous three years carried the standard allowance — so if you were tapered in an earlier year, or were not a scheme member, your true carry-forward will be lower. It does not calculate defined benefit pension input amounts, which are driven by the growth in your promised benefits rather than cash paid in; DB members should use their annual pension savings statement. It also treats the taper thresholds and standard allowance as the current figures, and it does not check whether your contributions exceed 100% of your relevant UK earnings, which is a separate limit on personal contributions. In short, it is a fast planning estimate, not a substitute for the exact figures on your HMRC or scheme statements.

How to read your result — a worked example

Suppose you have adjusted income of £250,000 and threshold income of £190,000. Because your adjusted income is below £260,000, the taper does not apply and your allowance stays at the full £60,000. Say you contributed £20,000 this year and, in the past three years, £8,000, £15,000 and £12,000. Your unused allowance from those years is £52,000, £45,000 and £48,000 — £145,000 of carry-forward — giving a total available of £205,000. Against £20,000 of contributions, the calculator shows £185,000 of remaining headroom, so a substantial one-off contribution could be made tax-efficiently this year (subject to having enough earnings to support personal contributions).

Change the picture so your adjusted income is £300,000 and threshold income is £210,000, and the taper now bites: £300,000 is £40,000 over the £260,000 limit, so the allowance drops by £20,000 to £40,000 before carry-forward is added. If your total contributions then exceed the available allowance, the calculator flips the headroom figure to a red excess and reminds you that the charge is levied at your marginal rate — which is where a scheme pays election may be worth exploring.

Why it matters and what to do next

Getting the annual allowance right is the difference between a contribution that attracts up to 45% tax relief and one that triggers a charge clawing that relief straight back. For higher earners the taper can quietly shrink the allowance to a fraction of £60,000, and carry-forward is a genuinely valuable but time-limited planning tool — unused allowance from four years ago is simply lost. Timing a large contribution, a bonus sacrifice, or a business-owner employer payment around these limits can save meaningful amounts of tax.

Use this estimate as a starting point, then pressure-test the bigger picture: the pension gap calculator shows whether your projected pot meets your retirement income target, the retirement calculator models how contributions grow over time, and the annual allowance guide walks through the edge cases in detail. Before making a large or irreversible contribution — especially if you are tapered, hold defined benefit pensions, or have lived or worked overseas — confirm your exact figures with your scheme statements and take regulated advice.