New Jersey Statutes Title 54. Taxation 54 § 39A-11

d. (1) Notwithstanding the provisions of R.S.54:49-4 or R.S.54:49-9 to the contrary, there shall be assessed a penalty of $50 or 10% of the taxes due, whichever is greater, for the failure to file a report, for the filing of a late report or for the underpayment of taxes due.

(2) Notwithstanding the provisions of R.S.54:49-11 to the contrary, the director : (a) shall waive the penalties imposed pursuant to paragraph (1) of this subsection if the user is not licensed under the International Fuel Tax Agreement and is not liable for tax with respect to that period; and (b) may waive those penalties in any other case if the director determines there is reasonable cause for the failure to file a report, for the filing of a late report or for the underpayment of taxes due.

e. (1) Notwithstanding the provisions of R.S.54:49-3 or R.S.54:49-6 to the contrary, the director shall assess interest at the rate of 1% per month or part thereof, from the date the tax was due until the tax is paid.

(2) The director shall waive the payment of any part of any interest attributable to the user's reasonable reliance on erroneous advice furnished to the user in writing by an employee of the Division of Motor Vehicles acting in the employee's official capacity, provided that the interest did not result from a failure of the user to provide adequate or accurate information.