Mistake in 22-23 tax year submission result in minor overpayment

Hi, when filling in my 23-24 self assessment i compared to 22-23 and notice i incorrectly submitted the foreign tax paid in 22-23 as gross rather than as net after foreign tax was deducted, total was < £1000, so i paid additional tax on the difference. What would be the process to reclaim? many thanks.

no reply needed, did an online chat and was informed this can be amended online for 22-23.

Hi Mark

If you made an error on your 2022/23 Self Assessment you can still make an amendment Self Assessment tax returns

Thank you