
8 common mistakes to avoid when selling your car
The 8 most common mistakes when selling your car privately in Australia — from overpricing to the Notice of Disposal most sellers forget to lodge.


Most people know there are two ways to sell a car: trade it in at a dealership, or sell it yourself. What most people don't realise is how much money they're leaving on the table with a trade-in, or how much time and stress a private sale actually costs them.
Here's what both options actually look like, and how to figure out which one makes sense for you.
Selling privately, through platforms like Carsales or Facebook Marketplace, is how you get the best price. That part's true. But there's a real cost to that extra money, and it's worth understanding before you commit.
What works:
What doesn't:
The process is genuinely time-consuming. A private sale can take anywhere from two weeks to two months, depending on your car, your price, and the market. During that time you're fielding enquiries at odd hours, arranging test drives, and fielding low offers from people who've spent 20 minutes on RedBook. Popular models like the used Toyota RAV4 and used Fords generate plenty of enquiries, but so does the competition. Buyers comparing multiple listings will use every imperfection as leverage.
Before committing to the private route, it's worth asking how much your time is worth. The price gap between a private sale and a competitive dealership offer is often smaller than it looks once you account for weeks of effort.
The risks of selling a car privately go beyond wasted time. Test drives mean handing your keys to someone you've never met, and you're often uninsured if something goes wrong, since many policies don't cover accidents during private test drives. There are also documented cases of cars being taken during test drives and not returned.
Then there's the admin. Handling a car under finance means getting a payout figure from your lender and coordinating timing so the settlement clears before ownership transfers. Writing up a private sale contract, lodging your Notice of Disposal, and making sure the buyer completes the rego transfer are all on you. If the buyer fails to transfer the rego, you can receive fines and infringement notices for a car you no longer own.
For many sellers, the extra money from selling privately is real, but so is the effort involved in getting it.

Trading in means selling your car directly to a dealership, usually as part of buying your next one. It's the fast option, and for a lot of people, that's reason enough.
What works:
What doesn't:
When you sell or trade-in your car with a dealership, profit margins come into play. The offer will be below private sale value. Whether that difference matters comes down to how much your time is worth to you.
Not every dealership sale works the same way. Sell To Carma gives you an online valuation based on current market data before you commit to anything, and the offer is made before you hand over the car, not after the dealer has had a chance to assess it on their terms.
There's no single right answer. It depends on what you're optimising for.
Time is the priority: Selling to a dealership gets it done quickly and with minimal effort. Sell To Carma takes two steps (online valuation, then one appointment) and pays significantly more than a traditional trade-in.
Price is the priority, and you have weeks to spare: Selling a car privately will likely get you the best return if you're willing to manage the process, take the risk, and wait for the right buyer.
You want a competitive price without the private sale hassle: Sell To Carma. You get a real market offer based on current data, no test drives with strangers, and Carma handles the paperwork.
The one path that's hard to justify on pure numbers is the traditional trade-in bundled into a new car deal. It's convenient, but you're paying for that convenience with a lower sale price.
The smartest first move in any of these scenarios is getting a valuation before you commit to a path. Once you know what your car is actually worth on the current market, you can make a real comparison instead of guessing.

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^ Estimated repayment calculation based on an average rate calculated across all fixed P&I used car loans offered by Carma preferred financiers to eligible applicants purchasing a vehicle aged 0-7 years from build date. The interest rates displayed are guides only and does not reflect an offer for any particular product or your situation and does not imply credit is available to you at this rate. Repayments as a result of this simulation can vary based on your personal circumstances including your credit worthiness. Final rate and all applications subject to financier approval. Fees and charges apply. The direct debit frequency options available from financiers may differ.
†within Greater Sydney
NSW Motor Dealer’s Licence: MD087139 • NSW Motor Vehicle Repairer: MVRL59465
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