La. Revenue and Taxation § 47:73

Current with changes from the 2024 legislative session effective on or before 7/1/2024, from Acts 2,3, 6-535, and 580-647
Section 47:73 - Items not deductible; family transactions

In computing net income, no deduction shall in any case be allowed in respect of losses from sales or exchanges of property, directly or indirectly, between members of a family or, except in the case of distributions in liquidation, between an individual and a corporation in which such individual owns, directly or indirectly, more than fifty per centum (50%) of the voting stock.

For the purpose of this Section an individual shall be considered as owning the stock owned, directly or indirectly, by his family; and the family of an individual shall include only his brothers and sisters, whether by whole or half blood, spouse, ancestors, and lineal descendants.

La. Revenue and Taxation § 47:73