Any PA preparers out there who can advise me?
I got client a federal extension for an individual return & found later that $300 was due on form PA-40.
I filed the return and inadvertently designated "N" where indicated at the top right of page 1.
Client is being charged late filing penalty.
Will the late filing penalty be removed if I mail in a copy of the federal extension form 4868?
Might the penalty be removed if I call the state? (Although they're quite hard to get through to on the phone.)
Thanks in advance.