Gift Aid Calculator 2025/26
Calculate how much Gift Aid a charity can claim on your donation, how much you can personally reclaim if you’re a higher or additional-rate taxpayer, and how payroll giving compares.
How Gift Aid works
Gift Aid allows UK charities to claim an extra 25p for every £1 you donate, at no extra cost to you — as long as you’re a UK taxpayer and have paid at least as much income tax or CGT as the charity will claim (for a £100 donation, the charity claims £25, so you must have paid at least £25 in tax this year). You confirm this by signing a Gift Aid declaration.
If you’re a higher-rate (40%) taxpayer, you’re entitled to claim back the difference between the basic rate already claimed by the charity and your higher rate — that’s an extra 20p per £1 donated, claimed via Self Assessment or by contacting HMRC.
Charitable donations under Gift Aid reduce your “adjusted net income” — the figure used to calculate the £100k personal allowance taper. If your income is between £100,000 and £125,140, a £2,000 Gift Aid donation effectively recovers £1,200 in tax (restoring personal allowance worth 60p per £ plus the 25p Gift Aid top-up). Highly efficient.