How much can I give under Gift Aid on a pension?
Gift Aid only works if you pay enough tax to cover it — and a pension income with some savings on top often carries less tax than people think. Put in what you receive and we'll show you how much you can give this year, whether what you've already given is covered, and whether HMRC could ask for any of it back.
This is an estimate for the 2026/27 tax year based on the figures you entered, and it is general information rather than personal tax advice. Tax has more edges than a calculator can cover. If your situation has anything unusual in it, ask us — we'll check it properly and there's no charge for that.
What the numbers mean
The four-times rule
When you tick the Gift Aid box, the charity claims 25p from HMRC for every £1 you give — your £80 becomes £100 to them. The condition is that you must have paid at least that much income tax or capital gains tax in the same tax year, across all your Gift Aid giving. Put the other way round, your gifts must be no more than four times the tax you pay: £500 of tax covers £2,000 of gifts. If the charities reclaim more than you paid, HMRC can ask you for the difference. It is not a fine, but it is your money, and it catches retired people more than anyone because so much of a pension income is tax-free.
Why a pension income carries less tax than it looks
Everyone has a £12,570 personal allowance, and the full new State Pension of £12,547.60 sits almost exactly inside it. On top of that, interest gets two tax-free layers: a starting rate for savings of up to £5,000 at 0% if your pensions and earnings are below £17,570, and then a personal savings allowance of £1,000 (£500 if you pay 40%). Dividends get a £500 allowance of their own, and ISA interest and ISA dividends are not income at all. So a couple with the State Pension, a small private pension and £20,000 in the bank can easily pay no income tax whatsoever — and a Gift Aid declaration would then be reclaiming tax they never paid. The calculator sets the allowance against pensions and earnings first, then interest, then dividends, which is how HMRC does it.
If you pay 40%, you get some back
Your gift is grossed up and your basic rate band widens by the same amount, so less of your income is taxed at 40%. On £1,000 given, that is £250 back to you, on top of the £250 the charity gets. It does not happen by itself: you claim it on a Self Assessment return, or ask HMRC to adjust your tax code if you do not file one. In Scotland the same widening works across the Scottish bands, so anyone paying the 21% intermediate rate or above gets something back too.
If you have already ticked the box and should not have
Ask the charity to stop claiming on your future gifts and to cancel the declaration — a phone call or an email is enough. For gifts already made, HMRC may recover the shortfall through a Simple Assessment letter or your return. One legitimate escape: a gift made in the current tax year can be carried back to the previous one on your return, if you paid more tax that year and you file by 31 January. And giving without Gift Aid is always fine — the charity still receives every penny you hand over, it simply does not get the extra 25p.
What this calculator doesn't cover
It handles the State Pension, other pensions, earnings, savings interest, dividends and Marriage Allowance. Capital gains tax you pay also counts towards Gift Aid cover but is not modelled here. It does not handle Married Couple's Allowance (for those born before 6 April 1935), Blind Person's Allowance, income from abroad, gifts of shares or property, or payroll giving, which is a different scheme. If any of that applies, the figure will be in the right region but not right — ask us and we will work yours out properly, free.
The dates that matter
Common questions
I only have the State Pension. Can I use Gift Aid?
On its own, no. The full new State Pension is just under the £12,570 personal allowance, so it carries no income tax and there is nothing for a charity to reclaim. Add some interest above the tax-free bands or a second pension and the answer changes — put your figures in above.
The charity says it will claim the tax back. Does that mean I have paid it?
No. The charity claims 25p in the pound from HMRC on the strength of your declaration. HMRC then checks that you paid at least that much income tax or capital gains tax in the year. If you did not, HMRC can ask you to make up the difference — the charity keeps its money.
Does interest in an ISA count?
No. ISA interest and ISA dividends are tax-free and are not income for this purpose. Only interest from ordinary savings accounts and dividends on shares held outside an ISA go in the boxes.
I pay 40% on some of my pension. Do I get anything back?
Yes. Your gift is grossed up and your basic rate band widens by that amount, so less of your pension is taxed at 40%. On £1,000 given that is £250 back to you. It is not automatic — claim it on a Self Assessment return or ask HMRC to adjust your tax code.
I have already ticked the box and now think I should not have. What do I do?
Tell the charity to stop claiming on your future gifts and to cancel the declaration. For gifts already made, HMRC may recover the tax through your Simple Assessment or return. It is a shortfall, not a penalty, and small amounts are often not pursued — but do not rely on that.
- Tax relief when you donate to a charity: Gift Aid — GOV.UK
- Tax when you get a pension — GOV.UK
- The new State Pension: what you'll get — GOV.UK
- Tax on savings interest — GOV.UK
- Tax on dividends — GOV.UK
- Marriage Allowance — GOV.UK
- Income tax rates and allowances — GOV.UK
- Scottish income tax — GOV.UK
Figures are for the 2026/27 tax year. This is general information rather than personal tax advice — if your situation has anything unusual in it, ask us and we'll check it properly, free.
Rather a person checked it?
Send us the figures and we will tell you where you stand, free. If you do need a return, it is £25 a month with the first month free — and we will claim the higher-rate relief for you.