The NICB puts the number of vehicles moving through unlicensed dealer operations at somewhere between 450000 and 800000 per year, though the figure is difficult to verify because the transactions are designed to look like ordinary private sales and leave no centralized record anywhere. State dealer licensing thresholds sit at three to five vehicle sales per 12 month period in most jurisdictions, and anyone selling above that threshold without a license is operating as what enforcement agencies call a curbstoner, full stop. A curbstoner acquires vehicles through wholesale auctions, trade in purchases, private sale pickups, repossession sales, and estate liquidations, then lists them on consumer platforms with the same language a private owner would use. The buyer who responds to the listing has no way to know the seller has moved fourteen other vehicles that year using the same method, no way to know the vehicle history report would show a salvage brand or a mileage discrepancy, and no reason to expect that the transaction carries none of the protections that would apply to a dealer sale. The transaction closes with a bill of sale, cash or outside financing — unlike documented dealer sales that expose lien check gaps in private sales, and no sales tax collected, no warranty disclosure provided, no buyer's guide posted, and no recourse available under state lemon laws or the FTC Used Car Rule.
A salvage title vehicle that went through a rebuilder and came out with undisclosed frame damage costs 3800 dollars at a wholesale auction where licensed dealers and rebuilders do most of the buying. Listed private sale with 30 minutes of detailing and a story about an elderly owner who didn't drive much, the same vehicle brings 8200 dollars from a buyer who doesn't run a vehicle history report before handing over the money. The 4400 dollar spread is profit, and a curbstoner moving ten to fifteen vehicles per year at similar margins generates 44000 to 66000 dollars in annual income with no dealer license fees, no lot lease, no insurance requirements, no bonding, and no sales staff. The vehicles generating those margins tend to be the ones carrying problems that would require disclosure or remediation if sold through a licensed dealer. Flood damage from hurricane zones where insurers totaled out 300000 vehicles in a single storm season, and salvage auctions moved the inventory within weeks. Odometer rollbacks that add 15000 to 25000 dollars of apparent value by subtracting 50000 to 80000 miles from the dashboard display. Open safety recalls that a dealer would have to clear before putting the vehicle on the lot. Frame damage, transmission problems, and engines burning oil at rates that signal major mechanical work within the year. None of it has to be disclosed in a private party sale.
State enforcement against curbstoning runs thin because DMV licensing investigators carry caseloads that include dealership audits, title fraud, odometer tampering complaints, lemon law violations, and everything else that falls under the motor vehicle division's jurisdiction, and curbstoning cases are time intensive to build.
Building a case requires matching vehicle identification numbers across title transfer records, cross referencing phone numbers from expired listings against registration addresses, pulling sales tax records to establish that no tax was collected and remitted, and demonstrating that the same individual sold enough vehicles to cross the licensing threshold, a process that typically takes eight to twelve months of investigative work when the curbstoner hasn't taken steps to obscure the trail and significantly longer when they have. Rotating the names on title documents, using prepaid phones that change with each listing, varying meeting locations across multiple counties, and spreading inventory across different platforms all extend the timeline and complicate the evidentiary chain. Fines for unlicensed dealer activity run 500 to 7500 dollars, depending on the state, amounts that represent less than the profit margin on a single vehicle with rolled mileage or undisclosed collision history. Most curbstoners who get caught pay the fine and resume operations. Criminal prosecution requires a level of staffing and sustained attention that most state AG offices allocate to higher dollar fraud cases, so criminal charges against individual curbstoners remain rare outside of cases involving exceptional volume or documented consumer harm.
The vehicle history report that would flag the salvage brand, the flood title, the insurance total loss designation, the auction sale through a salvage channel, or the mileage discrepancy between the last title event and the current odometer reading exists and is accessible for the cost of running a VIN check through any of the commercial providers pulling data from NMVTIS and other sources. Curbstoners depend on buyers who don't run that check before handing over money in a parking lot, and most buyers don't. A buyer who discovers after the purchase that the vehicle carries a salvage brand from three states ago or an odometer that was rolled back 47000 miles before the curbstoner ever acquired it has no warranty claim, no lemon law protection, and no FTC rule to invoke because the transaction was structured as a private sale between two individuals. The legal recourse that remains is a fraud lawsuit against a seller who may have no assets worth collecting and may be difficult to locate six months after the transaction closed.
Licensed dealers moved approximately 24 million used vehicles through retail transactions in 2024, according to industry data, and private party sales added another 18 million to 19 million, depending on which estimate is used. The portion of those private sales that were actually unlicensed dealer operations moving salvage history vehicles, flood cars, and rolled odometer inventory outside regulatory oversight isn't tracked by any state or federal agency and isn't going to be. The enforcement actions that do happen year after year haven't produced any measurable decline in curbstoning volume.
