SEISS alert: HMRC updates rules today - how will tax returns affect 4th grants? check now

For those who need to need to inform HMRC of any tax return amendments made after March 3, a specific online form will need to be completed.

This form can be found on the Government's website through its Government Gateway.

Once this has been done, HMRC will send the claimant a letter confirming if their grant has been affected.

Additionally, this letter will confirm how much needs to be paid back and how this can be done.