The self employment Income support scheme opens now. This is the payment for self employed people and will be a lifeline for those not eligible for any of the other financial packages.
They take your monthly average based on the last 3 years accounts, then give you 80% of that x3. So if you earn £100 a month you would get £80×3 = £240.
It doesn’t take into account businesses who have a lower average due to seasonal trading, or claim lots of expenses to pay little tax. But hopefully it will cover some of the recent losses.
You will need your unique tax payers reference number ( UTR) and National insurance number ( you can find these on your tax return ) . You will also need to have signed on and created an account.
They will give you a date within the next 5 days and you will be eligible to apply.

https://www.gov.uk/guidance/claim-a-grant-through-the-coronavirus-covid-19-self-employment-income-support-scheme?utm_campaign=

Here is a link to some step by step guidance on how to do this;

A guide to submitting Self-Employment Income Support Scheme (SEISS) claim