Worked a few days in NJ and received paycheck from previous work while still being a resident of Florida. Filled out state return because it can always be deleted and it said I had a refund of $0. Do I still need to file for NJ? Gross income from everywhere for both of us was 16k and I'm married filing jointly.
Yes, if your gross income from everywhere in 2019 was more than $10,000 and you are single.
Yes, if your gross income is more than $20,000 and you are married.
[Edited 03.24.20 | 3:09 pm]
So since I'm married and the combined gross income was less than 20k I do have to file for NJ as well as FL?
If you are married and your combined gross income is less than $20,000 you do not need to file a NJ return unless you file for a refund of NJ tax withholding. Florida does not have an income tax so you do not need to file either state return (unless you want a NJ refund).