April 18, 2022
"Designated Roth contributions: Under section 402A, a participant in a section 401(k) plan, under a 403(b) salary reduction agreement, or in a governmental 457(b) plan that includes a qualified Roth contribution program, may elect to make designated Roth contributions to the plan or program in lieu of elective deferrals. Designated Roth contributions are subject to federal income tax withholding and social security and Medicare taxes (and railroad retirement taxes, if applicable) and must b...