There is no senior citizen discount on motor vehicle taxes.
The Department of Motor Vehicles (DMV) does offer discounts on the semi-annual license renewal fee for persons 64 years of age or older. Visit the DMV website to check registration fees. For those 64 years of age, the fee is $22 for passenger vehicles every two years instead of the regular $24, and for those who are 65 or older, the reduced fee is $20 every two years for passenger vehicles (instead of $24), $30 for trucks with gross vehicle weight of 6000 pounds or less.
Even though vehicle registration is renewed only every other year, it should be noted that county personal property taxes are due every year.