⚡ Quick Answer
Gift Aid allows UK-registered charities to reclaim basic-rate tax (20%) on eligible donations from UK taxpayers. For every £1 you donate, the charity can claim an extra 25p from HMRC — making a £100 donation worth £125 to the charity at no extra cost to you. Higher-rate taxpayers can claim additional relief through Self Assessment (the difference between their marginal rate and basic rate on the grossed-up donation). Sign a Gift Aid declaration at the point of donation. Gift Aid does not apply to membership fees, raffle tickets, or event tickets (beyond any separate donation portion).
Gift Aid is one of the most generous and most underused charitable giving mechanisms in the UK. When you donate with Gift Aid, the government adds 25% on top of whatever you give — free money for the charity, at no extra cost to you. Yet a significant proportion of eligible donations are made without it, simply because donors either don’t know it exists or haven’t ticked the box.
How Gift Aid Works
When you earn income, you pay income tax on it before it reaches your pocket. When you donate from your post-tax earnings and sign a Gift Aid declaration, you’re telling the charity: “I’ve already paid 20% basic-rate tax on this money.” The charity then reclaims that 20% from HMRC.
The maths: on a £100 donation, the £100 represents 80% of the original gross income (100% minus 20% tax). The gross-up is £100 × 100/80 = £125. HMRC pays the charity £25 (the 20% basic-rate tax on the gross £125). You donated £100; the charity receives £125. Cost to you: £100. Benefit to charity: £125.
Additional Relief for Higher-Rate Taxpayers
Basic-rate relief is claimed by the charity. But if you pay tax at 40% or 45%, you’re entitled to additional relief — the difference between your marginal rate and the basic rate already claimed by the charity.
On a £100 donation for a higher-rate taxpayer: the charity claims £25. You can claim an additional £25 through Self Assessment (40% total minus 20% already claimed = 20% of the gross £125). Your effective net cost: £100 donation minus £25 personal tax relief = £75. Charity receives £125.
Many higher-rate taxpayers who donate regularly significantly under-claim this relief — it’s worth checking whether you’ve declared all eligible Gift Aid donations on your Self Assessment return.
Gift Aid Declarations
To apply Gift Aid, sign a declaration confirming you’re a UK taxpayer and have paid (or will pay) sufficient income tax or CGT to cover the basic-rate tax on your donation. Declarations can be made at the point of donation (tick the box online or on a form) or retrospectively by contacting the charity.
Also Read: How Inheritance Tax Works in the UK (And How to Prepare)
You can also sign a standing declaration covering all future donations to a particular charity — simplifying ongoing giving. Importantly: you must have paid enough tax to cover the basic-rate element. If you donate more than your total tax liability in a year, you become liable for the excess Gift Aid claimed.
What Gift Aid Doesn’t Cover
- Membership fees for charities or clubs
- Raffle tickets or lottery entries
- Payments for goods or services (even from a charity shop)
- Event ticket prices (though a voluntary donation above the ticket price may qualify)
- Donations from limited companies (these use a different mechanism)
Frequently Asked Questions
Do I need to do anything for the charity to claim Gift Aid?
Yes — you must sign a Gift Aid declaration. The charity cannot claim Gift Aid without one. It’s a simple process, usually a tick box when donating online or a signature on a paper form.
What about Payroll Giving?
Payroll Giving (Give As You Earn) is a separate scheme where donations are deducted from salary before tax — meaning all taxpayers automatically receive full income tax relief at their marginal rate, not just basic rate. This is often more tax-efficient for higher-rate taxpayers than a regular donation with Gift Aid.
For HMRC’s official Gift Aid guidance, visit gov.uk/claim-gift-aid.
