@kp79 wrote:
(If you're wondering, I am a happy TurboTax customer but prefer to estimate my taxes this way)
I fully understand but, frankly, very few (if any) others estimate taxes in this manner, particularly state taxes where there is state source income in more than the state of residence.
As a result, you might be better off simply purchasing one of the installed (desktop) versions of TurboTax along with the states (obviously, you get the first one free with TurboTax Premier desktop) since your scenario is complicated due to nonresident states.
