S.D. Codified Laws § 25-7A-14 (2026)
The Department of Social Services or any support obligee may collect interest on the unpaid principal balance of a support debt or judgment for support at the Category D rate of interest as established in § 54-3-16.
Source: SL 1982, ch 196 , § 14; SL 1986, ch 218 , § 16.