Questione giuridica chiave
How should the valid income of a long-term self-employed insured person be determined for disability assessment?
Decisione estratta
The valid income had to be based on the income shown in the individual account, not on a statistical average wage.
Motivazione estratta
He had been self-employed since 1998, so the activity was not of short duration, and there were no indications that he would probably have abandoned self-employment for better-paid work if healthy. The low IK income could not justify departing from the usual rule for self-employed persons.