Indiana Code Title 22. Labor and Safety § 22-2-7-2

Sec. 2. No assignment of his or her wages or salary by any employee or wage earner to any wage broker or any other person for his benefit shall be valid or enforceable, nor shall any employer or debtor recognize or honor such assignment for any purpose whatever, unless it be for a fixed and definite part of the wages or salary earned or to be earned during a period not exceeding thirty (30) days immediately following the date of the assignment.  Any assignment which shall be post-dated or dated on any other date than that of its actual execution shall be void and of no effect for any purpose whatever.