Its amazing that the private sector has had the option of adding a roth option to their 401K plans since 1/1/06 but the TSP board hasnt asked congress to authorize it for federal employees. What are they waiting for? The employee survey showed people are interested in it. Many people (in higher income brackets) can't invest in a Roth IRA because of income restrictions. I hope the TSP board doesnt stall to long before they add this option to the TSP.