Glastonbury, CT
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Motor vehicles are assessed at 70% of the depreciated value, which is determined by applying a standardized depreciation schedule to the Manufacturer Suggested Retail Price(MSRP) of the vehicle.(Public Act 25-2) Vehicles which have active registrations appear on the October 1st Grand List and are taxed for the time period from October 1st to September 30th of the following year. These bills are due in July next following the October 1st assessment date. Vehicles registered after October 1st appear on the Supplemental Grand List and are taxed from the month they are registered to September 30th. These bills are due the following January.
EXAMPLES:
Motor Vehicle on the 2025 Grand List (active registration on 10/1/25): Tax bill due July 1, 2026 covering the period 10/1/25-9/30/26
Motor Vehicle registered between 10/2/25-9/30/26: Tax bill due January 1, 2027 covering the period from the month the vehicle was registered through 9/30/26
To Calculate a Motor Vehicle Tax Bill
Motor Vehicle tax bills are calculated by applying a standardized depreciation percentage to the MSRP to arrive at a depreciated value. The depreciated value is multiplied by the statewide 70% assessment ratio to arrive at a taxable assessment. The mill rate is then applied to the taxable assessment to calculate the dollar amount of the tax bill.
MSRP X DEPRECIATION % X 70% X MILL RATE = TAX BILL
EXAMPLE: Calculate the 2024 Grand List tax bill for a 2024 model year vehicle with an MSRP of $35,000 using the 2024 Grand List motor vehicle mill rate of 32.46
35,000 X 90% = 31,500 DEPRECIATED VALUE
31,500 X 70% = 22,050 TAXABLE ASSESSMENT
22,050 X .03246 = $715.74 2024 GRAND LIST TAX BILL
| VEHICLE AGE | DEPRECIATION % |
| UP TO 1 YEAR | 90% |
| YEAR 2 | 85% |
| YEAR 3 | 80% |
| YEAR 4 | 75% |
| YEAR 5 | 70% |
| YEAR 6 | 65% |
| YEAR 7 | 60% |
| YEAR 8 | 55% |
| YEAR 9 | 50% |
| YEAR 10 | 45% |
| YEAR 11 | 40% |
| YEAR 12 | 35% |
| YEAR 13 | 30% |
| YEAR 14 | 25% |
| YEARS 15-19 | 20% |
| 20+ YEARS | NOT LESS THAN $500 |
Motor Vehicle Credits & Prorates
You may be entitled to an adjustment if you no longer own the vehicle for which you are being taxed. All Motor Vehicle credits or prorations require 2 forms of documentation:
Documentation should be submitted via email to assessor@glastonbury-ct.gov. Assessor staff will acknowledge receipt with an email reply within one (1) business day.
1. Cancellation of plates/registration receipt from the State of Connecticut DMV.
To cancel the registration or verify registration status visit the DMV website at:
DMV online services in Connecticut | CT.gov
If you have transferred license plates from this vehicle to a replacement vehicle you do not need to submit documentation. The current bill should be paid in full, and a credit for the period after the vehicle was disposed will be applied to the replacement vehicle’s supplemental tax bill which is due in January.
2. One of the following:
Vehicle was Sold/Junked or Donated:
- Copy of the Bill of Sale
- Copy of the Cancelled Title
- Trade-in paperwork from the dealer
- Copy of the new registration of the person to whom the vehicle was sold
- Receipt from the junkyard or dealer
- Receipt from the charity to whom the vehicle was donated
Vehicle was declared a Total Loss:
- A letter from your insurance company or agent stating that the vehicle was declared a total loss and the date of the loss
Vehicle was Registered Out of State:
- Copy of the new out of state registration indicating the date it was registered in that state
Vehicle was Stolen:
- A statement from your insurance company or agent stating that you were compensated for the stolen vehicle
Vehicle was Repossessed:
- Documentation from the finance company that the vehicle was repossessed and the vehicle was either sold or will not be returned to you
Resident of another town in Connecticut as of October 1st:
- Documentation of your residency in that town as of October 1st. (Property record card, lease agreement, utility bill, pay stub, etc.) By state statute the motor vehicle tax for the Grand List year is paid to the town where you resided on October 1st, the tax is not pro-rated between towns. Once you have submitted residency documentation we will forward the information to the proper town and that town will issue the tax bill.
Leased vehicle:
- A bill of sale showing the LEASING COMPANY sold/no longer owns the vehicle (vehicle turn in document is not sufficient)
- If you have bought the vehicle from the leasing company, a copy of your registration
In accordance with Connecticut General Statute §12-71c, the deadline for filing for property tax credits is as follows:
10/1/23 Grand List - December 31, 2025 deadline
10/1/24 Grand List - December 31, 2026 deadline
10/1/25 Grand List - December 31, 2027 deadline
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