Questão jurídica principal
Whether loss-of-earnings insurance premiums are deductible under Art. 31c LGL as necessary expenses to acquire income.
Decisão extraída
They are not deductible because the appellant's business continues to generate income when he is absent due to illness.
Fundamentação extraída
The premiums are not indispensable for earning the income within the meaning of Art. 31c LGL; the existence of an ongoing business means income is not lost merely because the owner is temporarily absent.