How to give money to charity tax effectively
If you are a UK tax payer, for every pound you give to charity, the charity you are supporting can claim an extra 28 pence from the Inland Revenue if you give the charity a simple Gift Aid declaration. This means that a £10 Gift Aid donation is worth £12.80 to the charity who are, in effect, claiming back the tax you have already paid on this amount.
Gift Aid will work for any amount of donation (and for higher rate tax payers). A Gift Aid declaration takes the form of a short form online or basic details over the phone when you are making a donation.