If you filed a federal return, had income in any state, and are a resident of PA, you are required to file a PA return. PA - DOR
Every resident, part-year resident or nonresident individual must file a Pennsylvania Income Tax Return (PA-40) when he or she realizes income generating $1 or more in tax, even if no tax is due (e.g., when an employee receives compensation where tax is withheld).
A resident is taxed on all of his or her taxable income whether it is received from sources inside or outside Pennsylvania.
A resident taxpayer is allowed a resident credit for income taxes imposed by and paid to other states based upon income that is subject to Pennsylvania personal income tax. Such taxpayers should complete PA-40 Schedule G-L, Credit for Taxes Paid by PA Resident Individuals, Estates or Trusts to other States. PA-40 Schedule G-L must include a copy of the tax return filed with the other state.