MS Deferred Compensation; allow Roth and other after-tax accounts.

SB 2912 allows Mississippi's state employee deferred compensation plan to offer Roth accounts and other after-tax contribution options. It directly affects state employees participating in this retirement plan. The key provision requires that after-tax contributions be treated as taxable income in the year they are made (rather than when withdrawn), aligning with federal tax treatment for Roth accounts. The bill amends two sections of Mississippi law and takes effect July 1, 2026.