Maine Car Excise Tax, Explained: What You Actually Pay to Register a Vehicle
The moment that catches new Mainers off guard almost always happens at the town office counter. You moved here, you go to register the car you have driven for three years, and the clerk quotes you a number that has nothing to do with your last state's flat registration fee. That number is excise tax, and if your vehicle is newish it can run into the hundreds of dollars, every single year.
It is not a scam and it is not negotiable, but it is badly explained almost everywhere online. The generic tax calculators spit out a figure without telling you what drives it, and half the "moving to Maine" pages get the basic rule wrong. Here is how it actually works, checked in July 2026 against Maine Revenue Services and the Maine Bureau of Motor Vehicles, so you can predict your bill before you walk in.
What excise tax is
Excise tax is an annual tax you pay for the privilege of operating a vehicle on Maine's public roads. It has been on the books since 1925. You pay it at the town office where you live, and you have to pay it before you can register or renew the plate. Every vehicle registered in Maine owes it, aside from a short list of statutory exemptions.
It is not the same thing as your registration fee, and it is not the same thing as sales tax. Sales tax you pay once, when you buy the car. The registration fee is a flat state charge. Excise tax you pay every year you own the vehicle, and it is almost always the largest line on the bill.
The formula: MSRP times a mill rate that drops every year
Maine calculates excise tax by multiplying the vehicle's manufacturer's suggested retail price by a mill rate that depends on how old the vehicle is. A mill is one dollar of tax per 1,000 dollars of value. The rate falls on a fixed schedule as the car ages, and it drops back on January 1 each year.
| Vehicle age | Mill rate | Rate as a percent of MSRP |
|---|---|---|
| Year 1 (new) | .0240 | 2.40% |
| Year 2 | .0175 | 1.75% |
| Year 3 | .0135 | 1.35% |
| Year 4 | .0100 | 1.00% |
| Year 5 | .0065 | 0.65% |
| Year 6 and after | .0040 | 0.40% |
Maine Revenue Services gives the textbook example: the owner of a three-year-old vehicle with an MSRP of 19,500 dollars pays 263.25 dollars, because 19,500 times .0135 equals 263.25. Run your own vehicle through the same math and you will land within a few dollars of what the counter quotes you.
The part almost everyone gets wrong: it is the sticker price, not what you paid
This is the single most important thing to understand, and it is where the online guides fail you. Excise tax is based on the manufacturer's suggested retail price when the vehicle was new. It is not based on what you paid, what the car is worth now, or what you owe on it.
Two consequences follow, and both surprise people. First, buying a used car for a bargain does not lower your excise tax. A five-year-old luxury SUV you picked up cheap still carries the excise tax of its original high sticker price, discounted only by the age schedule above. Second, trim level matters more than you would think. Two identical-looking crossovers can owe very different excise if one was the base model and the other was loaded with options that pushed its original MSRP up.
Maine designed it this way on purpose. When the tax was written, the legislature decided the fairest measure was what the manufacturer said the vehicle should sell for, so that everyone driving the same model pays the same tax regardless of the deal they negotiated. For a used vehicle, the town looks up the original MSRP using the JD Power guide (formerly NADA) or Red Book software keyed to your VIN. You cannot argue it down by showing a low purchase price.
The town myth: excise does not change based on where you live
If you just read our guide to property taxes by town, you might assume excise tax works the same way, varying town to town so it pays to live in a cheaper one. It does not. The excise mill schedule is set in state law and is identical in Portland, Falmouth, Scarborough, Cape Elizabeth, Cumberland, Yarmouth, and every other Maine town.
The only thing your town controls is where the money goes, not how much you owe. Whatever your town collects in excise, it keeps, and it typically spends it on local road maintenance, construction, and repair. So moving from South Portland to Gorham changes your property tax bill but not your excise on the same car. That is a genuinely useful thing to know when you are comparing the true cost of living across Greater Portland towns, because one big recurring vehicle cost is a wash between them.
What a real bill looks like
A few worked examples, using the schedule above:
A brand-new 35,000 dollar MSRP vehicle in its first year owes 840 dollars (35,000 times .0240). That same vehicle in year three owes 472.50 dollars, and by year six and beyond it settles at 140 dollars a year.
A new 45,000 dollar truck owes 1,080 dollars its first year. This is the number that shocks people who just financed a new vehicle: the excise in year one can rival a monthly payment.
An older, high-mileage commuter with a 22,000 dollar original MSRP, now seven years old, owes just 88 dollars (22,000 times .0040). Once a vehicle crosses into year six, its excise is cheap and stays flat for the rest of its life.
The pattern is clear. Excise punishes new and expensive, and rewards old and paid-off. If you want to see your yearly cost fall, the fastest lever is time, not mileage or condition.
The fees that ride along with it
Excise is the big number, but it is not the only one. On top of it, a standard passenger vehicle pays a state registration fee of 35 dollars per year, confirmed on the BMV fee schedule. A first-time title costs a separate one-time fee, and Maine requires an annual safety inspection, which you buy from a licensed inspection station rather than the town. Your town may also add small local agent fees. None of these move with the value of the car the way excise does.
If you are new to Maine, your very first registration has to be done in person at your town office, because they need to see the vehicle documents and collect that first excise payment. After that, most Greater Portland towns let you renew online through the state's Rapid Renewal system, which folds the excise and registration into one transaction.
FAQ
How is Maine car excise tax calculated?
Excise tax equals the vehicle's original manufacturer's suggested retail price multiplied by a mill rate set by vehicle age: .0240 in year one, .0175 in year two, .0135 in year three, .0100 in year four, .0065 in year five, and .0040 in year six and after. A three-year-old vehicle with a 19,500 dollar MSRP pays 263.25 dollars, per Maine Revenue Services.
Is excise tax based on what I paid for the car?
No. It is based on the manufacturer's suggested retail price when the vehicle was new, not your purchase price, current market value, or loan balance. Buying a used car below market does not reduce your excise tax, because the town uses the original MSRP looked up from your VIN.
Does excise tax cost more in some Greater Portland towns than others?
No. The excise mill schedule is set in Maine state law and is the same in every town, from Portland to Falmouth to Gorham. Your town keeps the excise it collects and spends it on local roads, but it cannot change the rate. This is the opposite of property tax, which varies significantly by town.
Do I pay excise tax every year?
Yes. Excise is an annual tax due before you can register or renew a vehicle. The rate drops to the next age tier on January 1, so an identical vehicle costs less to register each year until it reaches year six, where the rate levels off.
Why is my brand-new car's excise so high?
Because year one uses the highest mill rate, 2.40 percent of the full sticker price, before any age discount. A new 35,000 dollar vehicle owes 840 dollars in its first year and a new 45,000 dollar truck owes 1,080 dollars. The bill falls every year after that.
Is Maine auto excise tax deductible on my federal return?
Maine excise is an annual tax based on the value of the vehicle, which is the type of personal property tax the IRS allows some taxpayers to itemize on Schedule A. Whether it helps you depends on your full return, so confirm with a tax professional before counting on it.
Before you register
If you are pricing out a move to the area, put excise tax in the same mental column as property tax and the rest of the cost of living, and remember it is highest on the newest vehicles. If you are weighing towns, this is one cost you can cross off the comparison, because it is identical everywhere. And if you are still deciding whether Greater Portland is your landing spot, our guide to moving to Portland, Maine covers the rest of what changes the day you become a resident.