As a self-employed person (sole proprietorship, not a joint stock or limited company or association) which does not employ any staff other than yourself, you do not have to fill in the social insurance information. These are only required for additional personnel.
Also, as a self-employed person, you do not pay old-age and survivors’ (AHV) contributions on a (notional) salary. You will then receive the AHV final invoice based on the profit according to your tax return.
In KLARA therefore, fill out the social insurance for your staff only, but do not submit a salary for yourself and do not record yourself as an employee.