Indiana Code Title 22. Labor and Safety § 22-2-7-4

Sec. 4. (a) No assignment of wages by a married person who is living with the person's spouse residing in Indiana to any wage broker shall be valid or enforceable without the consent of the spouse, evidenced by the spouse's signature to said assignment, executed and acknowledged before a notary public or other officer empowered to take acknowledgments of conveyances.  No wage broker or person connected with the married person directly or indirectly shall be authorized to take any such acknowledgment.

(b) This chapter shall not apply to any deduction from the wages of any employee of such employer, which deduction is made for the purpose of applying the same to any account of such employee in any credit union or any nonprofit organization of employees of such employer organized under any law of this state or of the United States.