Car excise tax is a tax on the ownership or purchase of a vehicle, collected by your state or local government

A car excise tax is a yearly tax you pay to your state or municipality for owning a vehicle. It is separate from sales tax (which you pay once when you buy the car) and from registration fees (which cover the cost of your license plate and registration paperwork). The excise tax is an annual bill that arrives based on your vehicle's value, age, or weight — depending on which method your state uses to calculate it.

Not every state charges an excise tax on cars. Some states have eliminated it entirely, while others use it as a primary source of revenue for road maintenance and public transportation. A few states charge excise tax only on certain types of vehicles, like commercial trucks or luxury cars above a certain price. The amount you owe, when you pay it, and how it is calculated all depend on where you live and register your vehicle.

Key Takeaways

  • Car excise tax is an annual tax on vehicle ownership, not a one-time purchase tax, and the amount varies by state or county based on your vehicle's value, age, or weight.
  • Some states do not charge excise tax at all, while others calculate it differently — some use the vehicle's current market value, others use a depreciation schedule, and some base it on weight or engine size.
  • Excise tax bills are usually sent by your local assessor's office or tax collector and are due on a specific date each year, often tied to your vehicle registration renewal.
  • If you move to a state without excise tax or sell your vehicle, you may stop owing the tax, but you must notify your local tax office or assessor to stop receiving bills.

How states calculate the amount you owe

States use three main methods to calculate car excise tax. The most common is assessed value, where the tax is a percentage of what your vehicle is worth in the current year. A second method uses a depreciation schedule, which assumes your car loses value each year and calculates tax based on that declining value. A third method charges based on vehicle weight or engine size, which is less common but used in a few states.

If your state uses assessed value, the assessor's office will estimate your car's worth using market data, manufacturer specifications, and condition reports. This value typically drops each year, so your tax bill usually decreases over time. If your state uses a depreciation schedule, the tax rate is applied to a fixed percentage of the original purchase price, reduced by a set amount each year. For example, a car might be taxed at 90 percent of its original value in year one, 80 percent in year two, and so on until it reaches a floor value.

A few states — including Massachusetts and New Hampshire — charge excise tax based on the vehicle's dry weight (the weight of the vehicle itself, not including fuel or cargo). Others charge a flat fee per vehicle or a small percentage of the purchase price. The method your state uses determines whether your bill stays roughly the same each year or drops significantly as your car ages.

When and where you pay car excise tax

Car excise tax bills are issued by your local assessor's office, tax collector's office, or town clerk — the exact agency depends on your state and county. You will receive a bill in the mail, usually once per year, though some jurisdictions bill twice yearly. The due date varies by location but is often tied to your vehicle registration renewal date or falls in the spring or fall.

Payment methods vary by location. Many towns accept payment by mail, in person at the tax collector's office, or online through the town's website. Some allow automatic bank withdrawals or credit card payments, though credit card payments may include a processing fee. If you miss the due date, you will typically owe a late fee or interest charge, which accumulates over time. Some jurisdictions will place a lien on your vehicle or suspend your registration if excise tax goes unpaid for a long period.

If you are unsure when your bill is due or how to pay, contact your local tax collector's office or assessor's office directly. They can tell you the exact due date, accepted payment methods, and what happens if you do not pay on time. Many offices have online portals where you can look up your account and see your bill amount.

States that charge excise tax and how much it typically costs

Roughly half of U.S. states charge some form of car excise tax, though the structure and amount vary widely. States that charge excise tax on all vehicles include Massachusetts, New Hampshire, Rhode Island, Connecticut, Vermont, Maine, and several others. Some states charge excise tax only on luxury vehicles, commercial vehicles, or vehicles above a certain value threshold. Other states have phased out excise tax entirely or charge it only in certain counties.

The actual dollar amount you pay depends on your vehicle's value or weight and your state's tax rate. In states that use assessed value, the tax rate is typically between 0.5 percent and 2 percent of the vehicle's estimated worth per year. A vehicle worth $20,000 in a state with a 1 percent rate would owe $200 per year. In states that charge by weight, the fee might range from $50 to $300 per year depending on the vehicle's size. Because rates and methods vary significantly, you should contact your local tax office to learn the specific rate in your area.

What happens if you move or sell your vehicle

If you move to a state that does not charge excise tax, you will stop owing the tax once you register your vehicle in the new state. However, you are still responsible for any excise tax owed in your previous state up to the date you moved. You should notify your former state's tax collector or assessor's office that you have moved and provide proof of registration in your new state. Some states will issue a refund for any overpayment if you moved partway through the tax year.

If you sell your vehicle, you are responsible for excise tax through the date of sale. Some states allow the seller and buyer to split the annual tax based on the date of transfer, while others require the seller to pay the full year's tax. Check with your local tax office about the rules in your area before selling. If you trade in a vehicle at a dealership, the dealership may handle the tax paperwork, but you should confirm this before completing the sale.

If you own a vehicle but it is not registered in your name — for example, if a family member or business owns it — the tax bill goes to the registered owner, not the person who drives it. Make sure the registration reflects who actually owns the vehicle to avoid confusion about who owes the tax.

Exemptions and reductions for certain vehicles

Some vehicles are exempt from excise tax or charged at a reduced rate. Disabled veteran vehicles are often exempt or charged at a lower rate in many states. Electric vehicles may receive a tax break or exemption in some states as an incentive to purchase clean energy vehicles. Agricultural vehicles used primarily for farming are sometimes exempt. Antique or classic vehicles registered as such may be taxed differently or exempt.

To claim an exemption or reduction, you typically must explore through your local assessor's office or tax collector and provide documentation — such as a disability certificate, proof of electric vehicle registration, or a farm use declaration. The process and required documents vary by state and locality. If you believe your vehicle qualifies for an exemption or reduction, contact your local tax office to ask what paperwork you need and how the process works.

Frequently Asked Questions

Is car excise tax the same as registration fees?

No. Registration fees pay for your license plate and the cost of processing your registration paperwork. Excise tax is a separate annual tax on vehicle ownership. Both are due around the same time in many states, which can make them seem like one bill, but they are two different charges.

Can I deduct car excise tax on my federal income tax return?

State and local excise taxes on vehicles are generally not deductible on your federal tax return. However, state and local sales taxes (including sales tax paid when you purchase a vehicle) may be deductible under the state and local tax (SALT) deduction, up to a limit of $10,000 per year. Consult a tax professional about your specific situation.

What happens if I do not pay my car excise tax?

Late fees and interest charges accumulate on unpaid excise tax. If the debt goes unpaid long enough, your local government may place a lien on your vehicle, suspend your vehicle registration, or take other collection action. Some states allow the tax debt to be collected through wage garnishment or bank levies if it remains unpaid for years.

Do I owe excise tax if my car is parked and not driven?

Yes. Excise tax is based on ownership and registration, not on whether you actually drive the vehicle. If your car is registered in your name in a state that charges excise tax, you owe the tax each year, even if the vehicle sits unused in a garage.

Can I get a refund if I sell my car partway through the year?

Some states allow a refund or credit for the unused portion of the excise tax if you sell your vehicle before the tax year ends. Others require the full year's tax to be paid by the registered owner on the date the tax bill was issued. Contact your local tax collector to learn the rules in your state.