If, as a self-employed person, you are employed by another employer for more than eight hours per week, you are insured by this employer against occupational and non-occupational accidents (LAI) and do not have to take out additional insurance for the self-employment. It is urgently recommended to do so, however, as the insurance cover provided by the employment relationship only relates to the medical expenses and the insured salary with this employer. There is no cover for the total income earned through self-employment, which can lead to considerable financial bottlenecks.
The same consideration applies to occupational retirement provision:
This is voluntary for self-employed, part-time work, but is nevertheless important because the salary from this work is otherwise not insured.