These are two completely different mechanisms, so it's a great question — mixing them up is one of the most common mistakes I see with charitable giving.
Personal donations under Gift Aid
When you give personally and sign a Gift Aid declaration, the charity reclaims 25p from HMRC for every £1 you donate, at no extra cost to you. You don't deduct the donation anywhere on your own tax return as a basic-rate taxpayer — the charity simply gets £1.25 for every £1 you give. If you're a higher-rate or additional-rate taxpayer, though, there's an extra benefit for you: you can claim back the difference between the tax you've paid on the donation and the basic rate the charity reclaimed, either through your Self Assessment tax return or by asking HMRC to adjust your tax code. One important condition: you must have paid enough Income Tax or Capital Gains Tax in the year to cover what the charity reclaims, or HMRC can ask you to make up the difference.
Donations through your company
Gift Aid is strictly a personal thing — a company cannot use it. When your limited company donates to a registered charity, the relief works differently: the company deducts the full value of the donation from its total taxable profits before working out Corporation Tax. There's no Gift Aid declaration involved at all, and the charity doesn't reclaim anything extra from HMRC. Your company's sponsorship of the fun run is treated on the same basis, provided it was a genuine donation and not really advertising (sponsorship with significant publicity can be deductible as a business expense instead, which amounts to the same relief).
Practical takeaways
- Never sign a personal Gift Aid declaration for money that actually came from the company — it can't qualify twice.
- If you're a higher-rate taxpayer, personal Gift Aid can be slightly more valuable because of the extra personal relief; if you pay no personal tax, the company's Corporation Tax deduction usually wins.
- Keep clear records of which donations were personal and which were the company's, as they go in completely different places.
