Curbstoning is unlicensed dealing dressed as a private sale. The seller moves multiple cars a year, buys them cheap at auction or from owners, and sells them from a curb, a lot corner, or a marketplace account under a personal name, with the title often never transferred into their own name at all. That skipped transfer, called title jumping or floating, is the mechanical heart of the scheme: the buyer receives a title signed by a previous owner the seller never met, the tax and registration chain breaks, and when the car turns out to have a rolled odometer, a salvage history, or a lien, there is no licensed dealer to answer for it and often no real name to sue. State dealer licensing exists precisely to prevent this shape of sale. The FTC's Used Motor Vehicle Trade Regulation Rule and state dealer acts both assume a seller you can find afterward. A curbstoner is a seller designed to be unfindable.
The pattern shows before the car does
One seller, many cars, none of them owned long. Marketplace accounts that have sold eight vehicles in a year, all photographed in the same spot, all described in the same voice as personal cars with personal stories, are a dealership with the sign removed. Ask the direct question early: is your name on the title? A private owner says yes without pausing. A curbstoner explains. The explanation, a relative's car, a title held open for convenience, paperwork at a cousin's house, is the answer, and it is the moment to walk.
Meeting logistics tell the same story. A seller who will not meet at the address on the title, who has no registration in their name, who wants cash in a parking lot and gets vague about the car's history beyond a month, is asking you to fund the anonymity that makes the business model work.
Related reading on this site: Home and Someone Is Scraping Your VINs. The Listing Gives Them Away. cover the neighbouring problems in more depth.
What the buyer actually loses
A licensed dealer sale carries obligations a private sale does not: title warranty, odometer disclosure rules with a paper trail, state complaint routes, and in many states implied protections or mandatory disclosures a curbstoner never mentions. Buyers also lose the recall and history chain, because a jumped title means the recorded ownership skips the person who actually had the car, and any problem they knew about leaves with them.
The odometer point deserves weight. Federal odometer law requires written disclosure on transfer, and the disclosure chain is only as strong as the transfers recorded. Title jumping breaks the chain by design, which is why curbstoned cars are a classic vehicle for mileage fraud: nobody in the paperwork ever stated the mileage while they held the car.
Dealers and marketplaces see the other side
For licensed dealers, curbstoners are not just competition, they are the source of the angry buyer who thinks they bought from a dealer because the car was one of twelve listed by the same account. Reporting works when it is specific: the account, the VINs, the repeated location, the open titles if a buyer brings one in. State dealer boards and marketplace trust teams act on patterns documented across multiple sales, not on a suspicion about one car.
If you run a lot near a curbstoning hotspot, the cheapest defense is education at your own counter. A one page handout on checking that the seller's ID matches the title name costs nothing, and the buyers it saves remember which dealership taught them the check.
Frequently asked questions
What is curbstoning?
Curbstoning is selling vehicles as an unlicensed dealer while posing as a private owner. It typically involves multiple sales a year, titles never transferred into the seller's name, and no dealer licensing, which removes the buyer protections and accountability of a dealer sale.
What is title jumping and why does it matter?
Title jumping, also called floating, is reselling a car without registering the title into the seller's own name, so the buyer receives a title signed by an earlier owner. It breaks the tax, registration, and odometer disclosure chain and makes the actual seller hard to trace.
How can a buyer spot a curbstoner?
Look for one seller moving many cars, a title that is not in the seller's name, no registration in their name, reluctance to meet at the title address, and stories explaining the paperwork mismatch. Any one of these justifies walking away from the sale.
Are private party sales covered by dealer rules?
Genuine occasional private sales are treated differently from dealer sales under state law and the FTC Used Car Rule, which is exactly why curbstoners pose as private sellers. A person selling cars regularly as a business generally must be licensed as a dealer regardless of how the sale is described.