5.10.1 You can claim relief by:
completing the appropriate section of your tax return
requesting that your PAYE code is amended for the current tax year
requesting that your self assessment payments on account are reduced
5.10.2 If you’re not sent a tax return at the end of the tax year, or if you want to claim relief before the end of the current tax year, you should write to your tax office, giving full details of the gift, in order to claim the relief. 5.10.3 Companies should include the amount of relief they are claiming in the ‘Charges Paid’ box on their CTSA Return.