Can you file your taxes in a different state?

Federal income tax is the same no matter which state you live in or work in. If you worked in PA, you will have to file a state tax return for PA if they have state income taxes. If you live in one state and work in another you may have to file in both states. As a resident on one and a non-resident in the other. If you move in the middle of a calendar year you may have to file in both as a part year resident.