S.D. Codified Laws § 3-13-57.2 (2026)
A participant may designate that all or a portion of the participant's deferred compensation be treated as a designated Roth contribution. A participant may defer both designated Roth contributions and pre-tax contributions in the same year. The total deferrals may not exceed the annual deferral limit, as provided for in § 457(e)(15)(A) of the Internal Revenue Code.
Source: SL 2025, ch 27 , § 88.