Gift Aid will increase the value of your donation by 25% at no extra cost to you. You must pay an amount of Income or Capital Gains Tax equal to your total donations each year.
"I confirm I am a UK income or Capital Gains taxpayer. I have read this statement and want Headway - the brain injury association to reclaim tax on the donation above, made on the date of this declaration. I understand that if I pay less Income Tax/or Capital Gains Tax in the current tax year than the amount of Gift Aid claimed on all my donations it is my responsibility to pay any difference. I understand the charity will reclaim 25p of tax on every £1 that I have given."