The Self Employment Income Support Scheme (SEISS) has been extended. If you were eligible for the first grant and can confirm to HMRC that your business has been adversely affected on or after 14 July 2020, you’ll be able to make a claim for a second and final grant from 17 August 2020.
The scheme allows you to claim a second and final taxable grant worth 70% of your average monthly trading profits, paid out in a single instalment covering 3 months’ worth of profits, and capped at £6,570 in total.
As with the first grant HMRC will contact you if you’re eligible.
Further details can be found here https://www.gov.uk/guidance/claim-a-grant-through-the-coronavirus-covid-19-self-employment-income-support-scheme