In TurboTax Desktop (CD/Download) platform, there is an additional fee to e-file ANY state return. (I think the e-file fee is currently $24.99). In TurboTax Online, there is no additional fee to e-file a state return. Just a difference in the platforms and their features.
You can avoid that e-filing fee by printing and mailing your NJ return. See the instructions below if you should decide to file by mail.
https://ttlc.intuit.com/replies/3401713
*** I am NOT a tax expert. I am a seasoned TurboTax user, and volunteer to provide assistance to TT users. Nothing I post is to be considered TAX ADVICE; I bear no legal liability for responses.***