Let's say you want to convert as much of your tIRA to a Roth IRA as you can in a given year. In order to do that is it required that you be eligible to contribute to the Roth in the first place?
In my case I am not eligible to contribute to a Roth IRA (or a tIRA) because all of my income is excluded from federal income tax under the FEIE. Does that preclude me from converting part of my tIRA to Roth?