PA and NJ have reciprocal tax agreements. That means that NJ doesn't tax PA residents on wages earned in NJ. And, PA doesn't tax NJ residents on wages earned in PA
The relieves PA residents from filing a NJ Non-resident tax return, and vice versa.
So, you are done.
If you do work in any other states check to see if they have such agreements, or be prepared to file multiple state returns.
