With income tax thresholds frozen for another three years until 2031, many Britons face a 'lost decade' of stealth tax rises. However, HMRC's 'four times' rule offers a way to increase your tax-free Personal Allowance through Gift Aid donations.
How the 'Four Times' Rule Works
The rule allows you to report charitable gifts, including donations to charity shops, to extend your tax-free allowance. Your donations qualify as long as they are not worth more than four times the tax you paid in the financial year.
As explained by the Charity Finance Group: "Once you've made a Gift Aid declaration, your basic and higher rate tax bands are extended by the gross charitable donation, thereby increasing the proportion of your income taxed at the lower rates."
Example for Higher Rate Taxpayers
For a higher rate taxpayer (40%) donating £100 to charity, the basic rate band extends by £125. The charity claims 20% tax from HMRC, while the taxpayer benefits because £125 of income that would have been taxed at 40% is now taxed at 20%, resulting in additional tax relief of 20%.
Similarly, additional rate taxpayers (45%) receive income tax relief of 25%.
Impact on Personal Allowance
The tax-free Personal Allowance (£12,570 for 2023/24) reduces by £1 for every £2 of income above £100,000. However, Gift Aid donations extend the £100,000 threshold, restoring the personal allowance by £1 for every £2 of gross donations. The combined effect gives an effective tax relief rate of 60%.
The government states that donations qualify "as long as they're not more than four times what you have paid in tax in that tax year (6 April to 5 April)."
How to Claim
The easiest way to claim relief is to complete a Self-Assessment Tax Return and include details of any Gift Aid donations made during the year. This allows you to offset donations against your income, potentially saving hundreds or thousands of pounds.
