State tax filing

Thanks. Just looked at W2 and it was $8800 NJ income and $900 NJ state tax. It will be married file jointly return.

  • It seems I don’t have to file based on income requirements you mentioned? 
  • What would be the reason to file then- ie, refund owed or have to pay additional taxes???
  • do I not file if cost to file outweighs a refund??