The Maine vehicle excise tax is an annual charge you pay to your city or town before you can register or renew a vehicle. The amount is set by state law: it starts at 24 mills (2.4%) of the vehicle’s original manufacturer’s suggested retail price in the first model year and drops each January until it settles at 4 mills (0.4%) in year six and beyond. The money stays local and funds road and infrastructure work in your municipality.
How the Tax Is Calculated
The tax is always figured from the original MSRP, not what you paid, not the vehicle’s current market value, and not adjusted for mileage or condition. Only the mill rate changes, and it drops every January 1st based on the model year:1Maine Legislature. Maine Code Title 36 Section 1482 – Excise Tax
- Year 1 (current model year): 24 mills (.0240)
- Year 2: 17.5 mills (.0175)
- Year 3: 13.5 mills (.0135)
- Year 4: 10 mills (.0100)
- Year 5: 6.5 mills (.0065)
- Year 6 and after: 4 mills (.0040)
Multiply the MSRP by the mill rate for the vehicle’s age. A vehicle with a $30,000 MSRP costs $720 in year one, $405 in year three, and $120 once it hits year six. That $120 floor holds for as long as you own and register the vehicle.
State law also sets minimums that override the calculation when it comes out too low: $5 for most motor vehicles, $2.50 for a motorized bicycle, $15 for a camper trailer that is not a tent trailer, $5 for a tent trailer, and a flat $5 for stock race cars. Camper trailers otherwise use the same mill schedule as cars.1Maine Legislature. Maine Code Title 36 Section 1482 – Excise Tax
One quirk to watch: the mill rate steps down on January 1st, but a new registration runs for one year from the date you register. A car first registered in November could jump to the next mill tier just two months into that registration year.
Half-Rate for Late-Year Registrations
If you register a vehicle during the last four months of its registration year, the excise tax is cut in half. Two- and three-axle farm trucks used mainly to haul the owner’s agricultural products get the same half-rate treatment during that window.1Maine Legislature. Maine Code Title 36 Section 1482 – Excise Tax
Credit When You Replace a Vehicle
Sell, trade, total, or junk a vehicle and replace it during the same registration year, and the excise tax you already paid follows you to the new one. The credit can equal the full amount you paid, but if fewer than four months are left on the old registration, it’s capped at half. Each transfer carries a $3 municipal fee.1Maine Legislature. Maine Code Title 36 Section 1482 – Excise Tax
The credit travels across town lines. If you move and replace a vehicle at the same time, the tax collector in your new municipality has to honor the credit from your old one. If the credit is more than the tax on your replacement, the town isn’t required to refund the difference, though some do. You’ll need to sign a statement confirming you’ve permanently stopped using the old vehicle.1Maine Legislature. Maine Code Title 36 Section 1482 – Excise Tax
The same credit rules apply to leased vehicles. If a lease ends and you start a new one during the same registration year, the credit carries over.
What to Bring and Where to Pay
You pay at the town office or city hall where you live. For a first-time Maine registration, bring the window sticker (the Monroney sticker) or the dealer’s invoice showing MSRP and factory options, plus the bill of sale or title. For a renewal, your previous year’s registration already has the MSRP and model year on it.2Maine Revenue Services. Excise Tax
You’ll also need proof of liability insurance to complete the registration itself. An insurance ID card, a letter from your insurer, a binder, or a digital image on your phone all work.3Maine State Legislature. Maine Code Title 29-A Section 402 – Insurance Required Prior to Registration
Once you pay, the tax collector validates your registration and can issue plate stickers on the spot. Many Maine municipalities also take renewals through the state’s Rapid Renewal online portal, where you can pay the excise tax, registration fee, and a small service charge by credit card or electronic check. Rapid Renewal handles renewals only, not first-time registrations; check the site to see if your town participates.4Maine.gov. Vehicle and Trailer Registration Renewal Service
Excise Tax Is Not the Same as Sales Tax
The excise tax is separate from Maine’s 5.5% sales and use tax. If you buy a vehicle from a private seller or an out-of-state dealer, you owe the sales tax on the purchase price at the town office in addition to the annual excise tax.5Maine Secretary of State. Register A Passenger Vehicle When you buy from a licensed Maine dealer, the dealer collects sales tax at the point of sale. The excise tax then comes back every year for as long as you keep the vehicle registered.
Who Is Exempt
Several categories of owners and vehicles don’t pay Maine excise tax. The exemption most likely to matter to an individual is for veterans: if you receive any federal pension or compensation for a total, service-connected disability, up to three automobiles titled in your name are exempt.6Maine Legislature. Maine Code Title 36 Section 1483 – Exemptions
Other exempt categories include:
- Vehicles owned by the state or a political subdivision
- Volunteer fire department vehicles
- Vehicles owned by charitable, benevolent, religious, literary, or scientific organizations and used solely for the organization’s purposes, where the organization qualifies for property tax exemption under Maine law
- Dealer and manufacturer vehicles held solely for demonstration and sale as stock in trade
- Vehicles registered by municipalities or private secondary schools for driver education
Each exemption is claimed with documentation filed at the local tax collector’s office.6Maine Legislature. Maine Code Title 36 Section 1483 – Exemptions
Active-duty service members stationed in Maine whose legal domicile is another state also don’t pay the excise tax. Under the Servicemembers Civil Relief Act, “taxation” includes vehicle licenses, fees, and excise taxes, and Maine cannot tax a service member’s personal property when the member is here only on military orders. Spouses get the same protection.7Office of the Law Revision Counsel. 50 USC 4001 – Residence for Tax Purposes
Leased Vehicles
If you lease, you pay the excise tax as if you owned the vehicle, in the municipality where the tax would be due if the lessee were the owner. The MSRP used is the original figure from the window sticker or dealer invoice submitted when the vehicle was first registered.1Maine Legislature. Maine Code Title 36 Section 1482 – Excise Tax
Deducting the Excise Tax on Your Federal Return
Maine’s vehicle excise tax counts as a deductible personal property tax on your federal return if you itemize. The IRS deducts personal property taxes that are based on value and charged yearly, and Maine’s tax meets both tests.8IRS. Topic No. 503, Deductible Taxes
It falls under the state and local tax (SALT) category. For 2026, the SALT cap is $40,000 for most filers, phasing down to $10,000 above certain income thresholds. Your excise tax shares that cap with your Maine income tax and property tax, so the deduction only helps if you have room under the limit and your itemized deductions beat the standard deduction.