Online car auctions used to be mostly for dealers. More and more, private owners can use the same format: list the car once, let buyers compete on a set date, and only sell if the price reaches your minimum.
This guide explains how online car auctions work from the seller's side: the terms you'll see, what happens before, during and after the auction, and how to decide whether an auction is right for your car.
Why sell at auction instead of posting an ad?
A classified ad and an auction solve the same problem in different ways.
With an ad, you pick a price, then negotiate one buyer at a time. You answer the same questions over and over, set up showings, and deal with people who don't show up or who offer far below your price.
With an auction, buyers see the same information at the same time and bid against each other before a deadline. You set a minimum ahead of time, so you're never forced to accept less. The deadline also makes buyers decide instead of "thinking about it".
Auctions are not magic. A car still sells for what buyers think it is worth. But for many sellers, competition plus a deadline beats weeks of back-and-forth.
Terms you'll see
- Reserve (minimum). The lowest price you'll accept. Bidders usually can't see the number; they may see whether it has been met. If bidding doesn't reach it, the car doesn't sell automatically.
- No reserve. The car sells to the highest bidder, whatever the price. Higher risk for the seller, which is why most private sellers set a reserve.
- Proxy bid. A bidder enters the most they're willing to pay, and the system bids for them in steps, only as high as needed to stay in the lead.
- Buy Now. A fixed price at which a buyer can end the auction immediately and purchase the car.
- Offers and counteroffers. Buyers can propose a price before or after the auction, and you can accept, counter or decline.
- Buyer fee. A fee the winning buyer pays the auction platform on top of the price. It doesn't come out of what the buyer pays you.
- Bidder deposit. A refundable deposit that some platforms require from public bidders, so the people bidding are serious.
- Condition report. A structured description of the car: what works, what doesn't, damage, warning lights, tires and so on.
- As is. The buyer accepts the car in its current condition. That is exactly why an honest condition report matters.
Step by step: from listing to pickup
1. Create the listing
You enter the VIN, mileage and title status, take the photos and fill in the condition report. Good listings have:
- daylight photos of every side, the interior, the dashboard with the engine running, the tires and the engine bay
- close-ups of any damage
- an engine recording, so buyers can hear a cold start and idle
- plain-language notes about known problems
Be specific and honest. Disclosing a problem up front costs far less than a buyer backing out at pickup.
2. Set your minimum and options
Choose your reserve (minimum) and, if you like, a Buy Now price. Research what similar cars are actually selling for near you. A minimum that is far above the market just means the car doesn't sell. A realistic minimum gives bidders a reason to compete.
3. The auction runs
On auction day, approved bidders compete in real time. Bids often cluster near the end, so don't judge the result by the first few minutes. Proxy bids keep working even when a bidder isn't watching.
4. The result
- Reserve met: the car is sold to the highest bidder.
- Reserve not met: the car isn't sold automatically. You may receive offers, and you can accept, counter or relist.
5. Payment, pickup and paperwork
How payment works depends on the platform. Some collect the money and pay you; others have the buyer pay you directly at pickup. Either way, the rule is the same as any private sale: hand over the keys and the signed title only after you've been paid. Then file the Notice of Transfer and Release of Liability (REG 138) with DMV within 5 days. See our REG 138 guide.
What an auction won't do for you
- It won't fix title problems. You'll still need the title, or a plan for it. See replacing a lost California title.
- It won't remove California's smog requirement. See do you need a smog check to sell a car in California?
- It won't make a car worth more than the market will pay. It gives the market a fair chance to show you what that is.
Is an auction right for your car?
Auctions tend to work well for:
- everyday cars with clear market demand
- cars with known issues that dealers, mechanics or dismantlers will bid on
- non-runners, which are hard to sell through ads
- sellers on a deadline, such as a move, a new car arriving or a military PCS
An ad may suit you better if your car is rare and you're happy to wait months for exactly the right buyer.
How the Auction Direct Marketplace works
The Auction Direct Marketplace is open to private sellers in Los Angeles, Riverside, San Bernardino and San Diego counties. Here is how it is set up:
- Listing: free through December 31, 2026 (normally $25), with no commission when your car sells. During launch, our team offers free concierge listing in the areas it covers: we come to you, take the photos and engine recording, and fill in the condition report with you. You approve the listing before it goes live.
- Your minimum: you set it, and you never have to sell below it.
- Auction nights: cars run on scheduled auction nights, in auctions that last from 20 minutes to 2 hours, with Buy Now and offers.
- Who bids: local private buyers and licensed dealers, plus dismantlers and junkyards for non-runners. Public buyers put down a refundable bidder deposit before they can bid.
- Pickup and payment: the buyer comes to your home, pays you directly, and takes the car. Buyers pay Auction Direct a buyer fee; what the buyer pays you for the car is yours.
- Not sold? Relaunch it (the first 3 relaunches are free) and review any offers.
Running or not, title or not, we'll help you sell it. Start your listing, or see the local pages for San Diego, Los Angeles and the Inland Empire.
Quick recap
- Write an honest listing with good photos, a condition report, and engine audio if the car runs.
- Set a realistic minimum based on real local sales.
- Let buyers compete on auction day, then review any offers.
- Get paid before you hand over the keys and title.
- File REG 138 within 5 days.