My guess is TurboTax ASKS you to complete a state return for ANY nonresident state where you have income, whether there's a reciprocity agreement or not, and in some cases even if there's no actual income tax to pay (as in Florida, where TurboTax's "state return" IIRC is for a special property tax on nonresident landowners even though FL has no income tax). That's likely because (a) reciprocity agreements are far less common than the usual method of avoiding double taxation (pay nonresident tax then claim a credit for it on your resident state return), (b) reciprocity agreements don't apply to every situation in those states that have them (as I pointed out before), and (c) they don't wanna code individual states' resident/nonresident return rules into the main program. If you know you don't owe tax to the nonresident state, TurboTax apparently allows you to skip it if you insist.