The online service to claim the fourth grant will be available from late April 2021.
If you’re eligible based on your tax returns, HMRC will contact you in mid-April to give you a date that you can make your claim from. It will be given to you either by email, letter or within the online service.
You’ll need to confirm you meet other eligibility criteria when you make your claim.
You must make your claim on or before 1 June 2021.
Find out more here