Claim full relief on foreign tax credit relief

I am filling in the `Interest and other income from overseas savings` section of my self-assessment, because I need to declare some foreign income solely coming from interests from my savings in France, which exceed £2,000. I already paid some tax in France on that, which I would like to claim as FTCR. I understand that I can get a full relief on French tax already paid on interests coming from France, as per https://assets.publishing.service.gov.uk/media/5b05425fed915d1317445ed2/DT_Digest_April_2018.pdf which I found by clicking on `Relief for Foreign Tax Paid 2023 (HS263)` on https://www.gov.uk/government/publications/calculating-foreign-tax-credit-relief-on-income-hs263-self-assessment-helpsheet?_gl=1*clqkag*_ga*MTk5Mjg0OTA1Ny4xNzAxOTcxMjky*_ga_Y4LWMWY6WS*MTcwMjQ5MDMyMS4zLjEuMTcwMjUwODcwNS4wLjAuMA..&_ga=2.254397704.1863588534.1702490361-1992849057.1701971292 and then on `Digest of Double Taxation Treaties` at https://www.gov.uk/government/publications/calculating-foreign-tax-credit-relief-on-income-hs263-self-assessment-helpsheet/relief-for-foreign-tax-paid-2023-hs263 However, after selecting `Yes` to `Do you wish to claim foreign tax credit relief?`, I am asked to answer `Rate of tax credit relief allowed: (optional)` and the drop down menu only shows options from 0% to 25%. What value should I choose, given that full relief means that the allowed rate should be 100%?

Hi

The drop down menu is for the highest rate of tax relief due based on the rate of UK tax that you pay and not the actual income.

Thank you