The same used car can be a very different purchase depending on who is selling it. Buy from a dealer and you get federal disclosure rules, help with paperwork and on-the-spot financing, usually at a higher price. Buy from a private seller and you may pay less, but you take on more of the work and more of the risk.
Neither option is automatically better. What matters is knowing what changes, so you can plan for it. Here is a side-by-side look at the differences that matter most.
The quick comparison
| Dealer | Private seller | |
|---|---|---|
| Price | Usually higher, to cover overhead and profit | Often lower, with more room for direct negotiation |
| FTC Buyers Guide | Required on used cars offered for sale | Not required |
| Warranty | "As is" or a dealer warranty, stated on the Buyers Guide; some states require limited warranties | Almost always "as is" |
| Title and registration | Dealer typically handles it | You and the seller handle it |
| Financing | Available on site | You arrange your own loan or pay cash |
| Fees | Documentation fees are common | Usually none beyond state taxes and fees |
| Trade-in | Usually accepted | Not an option; you sell your old car separately |
Legal protections: the biggest difference
The FTC Used Car Rule applies to dealers
Under the Federal Trade Commission's Used Car Rule, anyone who sells more than five used vehicles in a 12-month period must post a Buyers Guide in the window of each used car they offer for sale. The Buyers Guide states whether the car is sold "as is" with no dealer warranty, or with a warranty, and if so what the warranty covers. It also lists major problems to watch for and suggests getting an independent inspection.
The Buyers Guide becomes part of your sales contract, and its terms override any contrary terms in the contract. If the guide says the car comes with a warranty, the dealer cannot remove that in the fine print. Keep a copy after you buy. The FTC's Dealer's Guide to the Used Car Rule explains the requirements in detail.
State laws can add more
Some states go further. A few limit or prohibit "as is" sales by dealers, and a handful, such as New York and Massachusetts, require dealers to provide limited warranties on many used cars. Dealers are also licensed by the state, which generally gives you a regulator to complain to if something goes wrong.
Private sales are mostly "as is"
Private sellers are not covered by the Used Car Rule, and private sales are generally "as is." Once you pay, problems you discover afterward are usually your responsibility. Your main legal recourse is if the seller lied about something material, such as hiding a salvage title or rolling back the odometer. That is fraud, but proving it takes time and effort.
Myth: "You have three days to return a car." There is no general federal cooling-off period for car purchases, from a dealer or a private seller. The FTC's Cooling-Off Rule does not cover cars bought at a dealer's lot. A few states offer limited options; California, for example, requires dealers to offer a paid contract cancellation option on many used cars. Assume the sale is final once you sign.
Paperwork and title transfer
At a dealership, the dealer usually prepares the title paperwork, collects sales tax and registration fees, and submits everything to the state. You may leave with temporary tags while the registration is processed.
In a private sale, you and the seller handle the paperwork yourselves, so be careful:
- Check the title's name against the seller's ID. If the person selling the car is not the person named on the title, stop. Reselling a car without first titling it in your own name is known as "title jumping" and is illegal in most states. It is often a sign of an unlicensed dealer posing as a private seller, sometimes called a curbstoner.
- Look for liens. If a bank holds a lien on the car, it must be paid off and released before the title can be transferred cleanly. Completing the deal at the seller's bank or lender can make this simpler.
- Look for brands. Read the title for salvage, rebuilt, flood or other brands. Our guide to title brands explains what each means.
- Complete the odometer disclosure and get a signed bill of sale listing the price, date, VIN and both parties' names.
- Check state requirements. Some states require an emissions or safety inspection before transfer, and in some the seller must provide it. Your motor vehicle agency's website will list what you need.
Financing, taxes and fees
Dealers can arrange financing on the spot, which is convenient, but the rate a dealer offers is not necessarily the best one you qualify for. Getting pre-approved by a bank or credit union first gives you a benchmark. For a private sale, you need cash or your own loan. Many banks and credit unions offer private-party auto loans, though they may have their own requirements for the vehicle and paperwork.
Sales tax usually applies either way. In a private sale it is typically collected when you register the car, but rules vary by state. At a dealer, many states tax only the difference between the purchase price and your trade-in value, which can make trading in more attractive than it first looks. Dealers also charge documentation fees, and some states cap them; ask about all fees up front and compare the out-the-door price, not just the sticker.
History checks and inspections: the same for both
Whoever is selling, the car's past is what it is. Do the same homework either way:
- Get the VIN and run a VIN check for title brands, accidents, mileage readings and ownership history. A dealer may hand you a report, but running your own costs little and confirms you are seeing the full picture.
- Check for unrepaired safety recalls. Neither dealers nor private sellers are generally required by federal law to fix open recalls before selling a used car. See how to check a car for open recalls.
- Get an independent pre-purchase inspection from a mechanic you choose. This matters even more in a private sale, where you have little recourse afterward.
- Confirm the specs with the VIN decoder, so you know the trim and engine match the ad.
Have a plate number but no VIN yet? A license plate lookup can identify the vehicle so you can start your research early.
Staying safe in a private sale
Private sales involve meeting a stranger and moving a large sum of money, so a little caution goes a long way:
- Meet in daylight in a busy public place. Many police departments offer designated safe exchange spots.
- Bring a friend, and let someone know where you are going.
- Never send a deposit for a car you have not seen, and be wary of sellers who are "out of the country" or want to ship the car to you.
- Avoid paying by wire transfer to someone you do not know, by gift cards or with large amounts of cash. A cashier's check verified with the issuing bank, or completing payment together at a bank, is safer for both sides.
- Do not hand over payment until you have the signed title in hand and have checked it.
Which should you choose?
A dealer may suit you if you want financing on the spot, need to trade in your current car, value written disclosures and possible warranty coverage, or would rather not handle title paperwork yourself.
A private seller may suit you if you want the lowest price, are comfortable handling paperwork and payment, and are willing to arrange your own inspection and financing.
Either way, the steps that protect you most are the same: verify the VIN, check the history and recalls, get an independent inspection and read every document before you sign. Our 12-step used-car buying checklist walks through the full process.