I'm curious if the entry for "TSP Contributions" really is just contributions or if it includes growth. I had read that is the only thing you can see on your account that indicates the Roth portion, and everything else in combined. For tax purposes during withdrawl, just knowing the TSP contributions doesn't cut it. In withdrawl, your roth contributions and their growth are supposed to be tax free. I understand that right now, allocations stay the same across traditional and Roth, but given that contributions to the two are not likely to be in consistent proportions throughout the life of the account, and many of us had a pre-existing traditional balance, I don't think that the calculation of how much is tax free would be straighforward if all you have to work with is a number for Roth TSP contributions. I hope either I am misunderstanding the current system, or they get their accounting straightened out on this.