What happens if I file my state return after the 4/15 deadline?

If you are due a refund on your 2024 tax return, there is no penalty for filing after the April 15, 2025, deadline.

If you owe taxes and file your return after April 15, 2025, the New Jersey Division of Taxation may charge you interest or penalties on the amount you owe. Once they process your state tax return, they will contact you with information on any additional amounts owed due to penalties and interest.

Either way, we recommend you file as soon as possible.