S.D. Codified Laws § 25-8-9 (2026)
Proceedings to establish or disestablish paternity and enforce the obligation of the father may be brought at any time before the eighteenth birthday of the child.
Source: SDC 1939 & Supp 1960, § 37.2131; SL 1983, ch 207 , § 2; SL 1986, ch 218 , § 57; SL 1989, ch 222 ; SL 2013, ch 119 , § 16.