How does Gift Aid affect your tax return?

Full answer

**Gift Aid** allows UK charities to reclaim basic-rate tax on your donations — boosting every £1 you give by 25p at no extra cost to you. But for higher and additional-rate taxpayers, there is also a personal tax saving. **How Gift Aid works:** 1. You donate £100 and sign a Gift Aid declaration confirming you are a UK taxpayer 2. The charity reclaims £25 from HMRC (20% basic-rate tax on the grossed-up amount of £125) 3. The charity receives £125 total — you pay £100 **Higher-rate taxpayer benefit:** The grossed-up donation (£125) is treated as occupying the basic-rate band — effectively extending it by £125. This means £125 of your higher-rate income is now taxed at 20% instead of 40%, saving **£25** (20% of £125). On a £100 cash donation, you claim back £25 via Self Assessment. **Additional-rate taxpayer benefit:** You save the difference between 45% and 20% = 25% on the grossed-up amount. On a £100 donation, save **£31.25** via SA. **Adjusted net income effect:** Gift Aid grossed-up amounts also reduce your **adjusted net income** — which can: - Reduce or eliminate the **60% trap** (if near £100,000) - Reduce the **Child Benefit High Income Charge** (if near £60,000) - Increase your **Personal Savings Allowance** band **Claiming on your tax return:** Declare Gift Aid donations on **SA100 (box 5)** or via the HMRC online SA return. You can also elect to carry back donations to the prior tax year (useful if you were a higher-rate taxpayer then but not now). **4-year backdate:** You can claim higher/additional-rate relief for donations made in the previous **4 tax years** — use the same Self Assessment return or write to HMRC. **Non-cash Gift Aid:** Gifts of quoted shares, land and buildings to charity also qualify — and no CGT is payable on the gifted asset.

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Related guides

• Uk Self Assessment Guide