It was announced that the government will meet the cost of coronavirus statutory sick pay (SSP) for small businesses with up to 250 employees for 14 days.
However Self employed people are not eligible for Statutory Sick Pay (SSP)
Self employed Statutory Sick Pay for Coronavirus – what you are entitled to and when.
Instead self employed people will be able to claim Universal Credit at the same rate as Statutory Sick Pay (SSP) for eligible people affected by coronavirus or self-isolating in line with advice from day one of sickness.
You can find details of how to claim here – https://www.gov.uk/universal-credit