If you are self-employed and qualify for the Self-employment Income Support Scheme you could receive a cash grant from HMRC based on 80% of your profits, up to £2,500 per month. The initial grant is for the three months, from 1 March through to the end of May 2020, but this measure could be extended. You can only make a claim if your business has been adversely affected by Coronavirus. For most claims, the grant will be based on average trading profit over the tax years 2016-17, 2017-18, 2018-19.