Gift Aid Calculator — CharityCompare embed

Donation amount

Reverse: enter what you can afford instead

Your tax band

Basic rate (20%)£12,571–£50,270Higher rate (40%)£50,271–£125,140Additional rate (45%)over £125,140

I earn £100k–£125,140 — Gift Aid restores your Personal Allowance at up to 60% effective relief. How the £100k trap works

Charity receives

£125

£1 becomes £1.25 with Gift Aid

You can reclaim

£25

via Self Assessment (20% difference)

Net cost to you

£75

After 20% tax relief

Estimates only, not tax advice — 2025/26 UK rates. The charity must hold a valid Gift Aid declaration from you and you must have paid enough tax to cover the reclaim. Figures: HMRC Gift Aid guidance. Calculator by CharityCompare — free to use and embed.