S.D. Codified Laws § 25-2-15
Current with legislation signed by the governor on or before 3/6/2024
For any injury to his or her reputation, person, or property, a person may sue in his or her own name without joining his or her spouse as a party plaintiff. Actions founded upon a person's separate contracts or torts or relating to his or her individual property may be brought without joining his or her spouse as a party defendant.
SDCL 25-2-15