New York Codes, Rules and Regulations
Title 15 - Department of Motor Vehicles
Chapter I - REGULATIONS OF THE COMMISSIONER
Subchapter B - Registration, Certificate of Title, and Number Plates
Part 29 - County Motor Vehicle Use Taxes
Section 29.6 - Retention of operational costs by state

(a) All county tax monies collected in issuing offices of DMV in any calendar month, less collection and administrative costs for such transactions, will be distributed to the appropriate fiscal officer of the county by the end of the following month by the State Comptroller, upon certification from the commissioner.

(b) The collection and administrative costs incurred by DMV and its agents, deducted from the monthly distributions to be made to the county, will be determined on a per transaction basis subject to change as costs change. They will be certified from time to time by the commissioner.