The RPIE-2016 was due by June 1, 2017. If you received an RPIE Non-Compliance Penalty Notice from the Department of Finance, it means that records show that you were required to file an RPIE-2016 but failed to:
According to City law, you can be penalized for not filing properly or not filing at all. The amount of the penalty that will be imposed is stated in your notice. Unpaid penalties will accrue interest as of July 1, 2017. You should pay the penalties before the deadline to avoid interest charges.