You only need to file an NJ tax return.
NJ and PA have tax reciprocity for W-2 wages and salaries. That means that NJ residents are not subject to PA income tax on their W-2 earnings.
If your only earnings from PA were W-2 wages, and if no PA income tax was withheld from your pay, then in the Personal Info section of TT enter NJ as your state of residence, and answer NO to the question about having other state income.
**Answers are correct to the best of my ability but do not constitute tax or legal advice.
