As you are probably aware tax agents were not able to claim SEISS grants on their client’s behalf, and we do not currently have access to the amounts you have claimed.
If you are self-employed and have received any SEISS grants in 2020/21 can you please let us have details of the amounts received so that we can include the correct amounts in your return. The amounts received are taxable but should not be included in your turnover as that would mean double counting.