State tax filing

Possibly........depends on the credit that was applied and if you meet the eligibility requirements for that credit.  Is the credit for Tax Forgiveness? be sure you answered all the questions properly. Taxes paid to another state?  That credit is not applicable if you earned wages in NJ, MD, WV, VA, or OH and had taxes withheld from your pay while a resident of PA.  These two credits are the most common areas of misunderstanding.