The MnSCU TSA plan allows for employee contributions only. Contributions have generally been allowed on a pre-tax basis only. However, you now have available to you the ability to make Roth after-tax contributions as well. These after-tax contributions are included in your maximum contribution limits, plus any catch-up limits if applicable. For more information on the Roth 403(b) please click here (Roth pdf) or call TIAA-CREF at 800 842-2776, Monday through Friday, 8 a.m. to 10 p.m. or Saturday, 9 a.m. to 6 p.m. (ET)