Free tool · Tax & Compliance
Calculate additional tax relief for 40% and 45% taxpayers donating to charity. See how Gift Aid plus Self Assessment relief works.
Your donation
Your tax rate
PledgeNow captures Gift Aid on every pledge.
Donors get automatic reminders. You get automatic HMRC exports.
When you donate £100 with Gift Aid, the gross donation is £125 (£100 + £25 Gift Aid). If you pay 40% tax, you can claim relief on the difference between 40% and 20% of the gross donation: £125 × 20% = £25 back to you via Self Assessment.
Through your Self Assessment tax return. Include the total value of Gift Aid donations in the 'charitable giving' section. HMRC will reduce your tax bill or issue a refund. You can also ask HMRC to adjust your tax code.