Unfortunately you will not be able to sign up for COBRA insurance if you are self employed.  Federal COBRA insurance benefits only extend to people who work for companies with over 20 employees and state sponsored COBRA insurance policies may extend to companies with 2-19 employees.  Most likely you will need to seek out COBRA insurance alternatives.  The only other option you could possibly explore is if you belong to a group health insurance plan provided by an umbrella network of self employed individuals.  If you are part of such a network, you may be eligible for COBRA insurance but you will have to reach out to your plan administrator.