What Does “Not Actual Mileage” Mean on a Car Title?

Written by Kathryn Mae Kurlychek and 1 other
Nov 26, 2024

A “not actual mileage” title means the exact mileage of the vehicle is unknown. It may be written “N” or “NAM.”

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A “not actual mileage” brand on a vehicle’s title means the exact mileage of the vehicle is unknown.

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  • If you see “Not Actual Mileage,” “N,” or “NAM” written on the back of a car’s certificate of title, it could mean that the odometer was replaced or broken.
  • It could also mean that someone intentionally tampered with the odometer to change the mileage of the vehicle.
  • Once this brand is added to a vehicle title, it can never be removed—even if you apply for a new title.

What does it mean for a title to say “not actual mileage?”

Odometers are often key in determining the value of used cars. They indicate how many miles the car has traveled—and help potential buyers determine how many miles more the vehicle might last.

Different odometer designations may be found on the back of a used vehicle’s title, one of which is “not actual mileage.” The Not Actual Mileage designation—sometimes written as (N) or NAM—indicates that the vehicle’s exact mileage is unknown and the odometer reading may be misrepresenting its true mileage.

How this happens: There are a couple of circumstances that could result in an odometer discrepancy:

  • The odometer was formerly replaced and now incorrectly displays the vehicle’s mileage
  • The odometer broke, maxed out, or returned to zero, and remained broken for a period of time (or remains broken)
  • The odometer was intentionally rolled back to hide the vehicle’s high mileage (if proven, this is a violation of federal law)
  • The mileage was recorded incorrectly on the odometer disclosure statement due to human error

Important note: If you notice a “not actual mileage” brand on a used vehicle’s title, you should know that it’s a permanent brand that cannot be changed and it could have consequences for the vehicle’s resale value.

“True mileage unknown” means the same thing as “not actual mileage”

The designation of “true mileage unknown” (sometimes abbreviated as TMU) is essentially just a nicer way of saying that the vehicle’s mileage history is inaccurate. Both terms describe vehicles where the mileage is misrepresented or when there’s evidence that a vehicle’s odometer was tampered with or replaced.

How a not actual mileage title affects the value of a used car

In most cases, a “not actual mileage” brand reduces the value of a vehicle, but there are still ways you can determine whether you should make the purchase.

Doing your due diligence on a used vehicle by requesting a CARFAX report and having a pre-purchase inspection done can help you make a more accurate estimate of a vehicle’s actual miles—and better determine its true value.

Risks and benefits of buying a car with a TMU or NAM title

The big question: Should you buy a vehicle with a title that says “True Miles Unknown” or “Not Actual Mileage?” As with any used vehicle purchase, it’s a bit of a gamble, so it’s important to mitigate the risks associated with buying a vehicle with incorrect mileage.

Here are a few steps to take before buying a vehicle with a “Not Actual Mileage” brand:

  • Try to find the origin of the issue. Get a vehicle history report. Chances are, you just might notice an odometer recording that drastically mismatches the rest of the vehicle’s record, making it easier for you to estimate where things went wrong (and get an idea of the vehicle’s true mileage).
  • Have a pre-purchase inspection done. This could help you identify any possible problems or necessary maintenance that its odometer reading may otherwise not reveal. Because vehicles with “not actual mileage” or “true mileage unknown” titles are undervalued, you could get a great deal on a valuable car.
  • Take your time: Not every “not actual mileage” vehicle is a winner—which is why it’s important to do your research before making any purchases. If you wind up purchasing a vehicle that you believe was misrepresented by the seller, you’ll have a tough time proving your case in court, since most states require solid proof of damage.

Even if you’re comfortable with the vehicle as it is, you could face other challenges when it comes to finding insurance or financing the vehicle. Branded titles often come with associated risks that cause insurance companies to raise their rates, and loan providers may be reluctant to offer financing on vehicles that lack a clean title.

Another con? If you ever decide to resell the vehicle in the future, you’ll also face a lower resale value as a result of the odometer fraud—and you may even have difficulties finding a buyer.

Key Takeaway:You may be able to get a not actual mileage vehicle for a cheap price, but the vehicle could be seen as risky to finance or insure.
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Kathryn Mae Kurlychek

Kathryn is an insurance writer and recent graduate from Penn State University, with a Bachelor\\\\\\\’s in Women\\\\\\\’s and Gender Studies. During her time as a student, she completed a number of written projects, including her undergraduate thesis, \\\\\\\”#SUGARBABIES: Women\\\\\\\’s Negotiation of Agency and Sugar Culture on TikTok\\\\\\\” which is currently under review for publishing at the Journal of Undergraduate Research. Her first car was a green 1997 Subaru Impreza that she bought off of craigslist and named Delilah.

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Jessica Barrett

Jessica Barrett is a senior insurance writer and editor with 10 years of experience in the automotive and travel industries. A specialist in car insurance, car loans, and car ownership, Jessica’s mission is to create comprehensive content that car owners can use to manage their costs and improve their lives. As a managing editor for a team of writers and insurance specialists, Jessica has edited over 2,000 articles for Jerry on topics ranging from local insurance shopping tips to refinancing car loans with bad credit. Before joining Jerry as a senior content editor in 2021, Jessica created visual content for clients such as Expedia, Vivid Seats, Budget Direct Car Insurance, Angie’s List, and HomeAdvisor. Her content was published in Business Insider, Forbes, Apartment Therapy, and the BBC.

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Editorial Note: This article was written by a paid member of Jerry’s editorial team. Statements in this article represent the author’s personal opinions and do not constitute advice or recommendations. You should consult with an insurance professional about your specific circumstances and needs before making any insurance decisions.