If Mila work is carried out as a sideline income and you pay your social and health insurance through your main employment, no social security contributions are due. If this is not the case, the relevant health insurance companies and social insurance providers will be happy to informatiom you about the options.
If the income from the sideline job exceeds CHF 2,300 (per annum), you must register with a compensation fund. As a Mila partner, you are responsible for the correct accounting of all social insurances and taxes.
As soon as your additional income exceeds this exemption, your profile will be blocked until you submit your AHV registration confirmation. Please send this confirmation to firstname.lastname@example.org. More information available here.
Social security contributions need to be paid also for sideline jobs.