A car excise tax is a yearly tax on vehicle ownership, separate from sales tax

A car excise tax is an annual tax you pay to your state or local government based on the value of your vehicle. It is not the sales tax you pay when you buy the car — it is a separate, recurring tax that comes due each year you own it. Some states call it a property tax on vehicles; others call it a registration tax or use tax. The amount you owe depends on what your car is worth, not on how much you paid for it originally.

Not every state charges a car excise tax. Massachusetts, Vermont, and New Hampshire are among the states that do. Some cities and counties impose excise taxes even when the state does not. The tax is usually collected by your local assessor's office or the Registry of Motor Vehicles, and you typically pay it when you renew your vehicle registration.

Key Takeaways

  • Car excise tax is charged annually based on your vehicle's current assessed value, not its original purchase price.
  • The tax rate and rules vary significantly by state and sometimes by city or town, so you must check your local government's rules.
  • You usually pay the excise tax when you register or renew your vehicle registration each year.
  • The assessed value of your car typically decreases each year, which means your excise tax bill usually goes down over time.

How the assessed value of your car is determined

Your local assessor's office determines the value of your vehicle for tax purposes. They do not use the price you paid; instead, they use a depreciation schedule — a formula that estimates what your car is worth based on its age, make, model, and condition. A new car loses value quickly in the first year, then more slowly after that. The assessor's office publishes these schedules publicly, so you can look up what your specific vehicle is worth according to their formula.

In most places, you do not have to prove the value yourself. The assessor uses the depreciation schedule automatically. However, if you believe your car's assessed value is wrong — for example, if it has major damage or unusually high mileage — you may be able to file a abatement request or appeal to have the value lowered. The process and deadlines for this vary by location, so contact your local assessor's office for the specific steps.

What the tax rate is and where to find yours

Car excise tax rates are set by state law and sometimes adjusted by local governments. Rates typically range from about $15 to $25 per $1,000 of assessed value, but this varies. Massachusetts charges roughly $25 per $1,000 of value; Vermont charges less. Some towns within a state may charge different rates. You cannot find a single national rate because the tax is local.

To find your specific rate, contact your town or city assessor's office, or check your local government's website. Many assessor offices have online calculators where you can enter your vehicle information and see an estimate of what you will owe. Your vehicle registration renewal notice will also show the excise tax amount due.

When and how to pay your car excise tax

In most states that charge excise tax, the bill arrives with your vehicle registration renewal notice. You pay it at the same time you renew your registration — usually once a year. Some places allow you to pay in two installments (typically half in the spring and half in the fall), while others require a single payment. The deadline is usually tied to your registration expiration date.

You can typically pay by mail, in person at the assessor's office or Registry of Motor Vehicles, or online through your local government's website. If you do not pay by the deadline, you may face late fees or penalties. Some jurisdictions will not renew your registration until the excise tax is paid in full.

How excise tax differs from property tax and sales tax

A car excise tax is often confused with property tax because both are annual taxes based on the value of something you own. The difference is that property tax applies to real estate (your house or land), while excise tax applies to vehicles. Some states charge both — a property tax on your home and a separate excise tax on your car.

Sales tax is different again. You pay sales tax once, when you buy the car. Excise tax is paid every year after that. If you buy a car for $20,000 and pay 6% sales tax, you pay $1,200 at purchase. Then, each year, you pay excise tax based on what the car is worth that year — which decreases over time. After five years, your car might be worth $12,000, so your excise tax would be based on that lower value.

What happens if you do not pay your car excise tax

If you do not pay your car excise tax by the deadline, your local government will typically add late fees or interest to the bill. The amount varies by location but is often 10% to 15% of the original tax owed, plus interest that accrues monthly. In many places, you cannot renew your vehicle registration until the excise tax is paid in full, which means you cannot legally drive the vehicle.

If the debt goes unpaid for a long time, some jurisdictions may place a lien on your vehicle or report the debt to a collection agency. If you are having trouble paying, contact your assessor's office or the Registry of Motor Vehicles to ask about payment plans or hardship options. Some towns offer extended payment schedules or temporary deferrals for people facing financial hardship.

Frequently Asked Questions

Does my car excise tax go down every year?

Usually yes, because the assessed value of your car decreases each year as it ages. However, the rate itself does not change — what changes is the value your car is assessed at. After about 10 years, the depreciation slows significantly, so your tax bill may level off rather than continuing to drop.

Can I get an excise tax abatement if my car is damaged?

Yes, in most places. If your car has been in an accident, has major mechanical damage, or has been totaled, you can file an abatement request with your assessor's office asking them to lower the assessed value. You will need to provide documentation of the damage. Deadlines for filing vary, so contact your assessor right away if you think your car qualifies.

What if I sell my car mid-year?

In most states, you are responsible for the full year's excise tax even if you sell the car partway through. However, some jurisdictions allow you to request a refund or credit for the remaining months. Contact your assessor's office with your sale date and the buyer's information to ask about a refund.

Is car excise tax the same as vehicle registration fees?

No. Registration fees are what you pay to register your vehicle with the state; excise tax is a separate tax based on the car's value. You pay both when you renew your registration, but they are two different charges on your bill.