Where to File-graduate student, Maryland and Pennsylvania
I am trying to file my 2019 taxes currently. I reside in Pennsylvania for graduate school (I moved to Pennsylvania in 2018). In 2019, I only worked in Pennsylvania (I have not made money in Maryland for years). My permanent address is in Maryland, and my car and license are registered in Maryland. I do not spend even up to 100 days in Maryland; the overwhelming majority of the year I spend in Pennsylvania. I know Maryland and Pennsylvania have reciprocity or reciprocal rules- it's a neighboring state, but I don't know what that means regarding how I file my taxes. I want to be sure I am actually filing my taxes properly.
Do I file state taxes in both Maryland and Pennsylvania? Or just Pennsylvania, or just Maryland? Is there a special form or way to file my taxes that I need to know about?
And I figured I'd throw this one in here just in case anyone knew, regardless of how I file my state taxes, I have to pay Local Earned Income Taxes in Pennsylvania, correct? I received a paper form from my county in Pennsylvania, and I wondered what to do with it.