Trade-In
A car you sell to the dealer as part of a new-car deal. Negotiate separately.
A trade-in is a vehicle you sell to the dealer as part of a new-car purchase. Dealers often "undervalue" the trade to subsidize a "great" deal on the new car — total profit unchanged, just shifted between the two transactions. Always negotiate the new-car price separately from the trade. Get a written Carmax/Carvana/Vroom offer first as your floor; if the dealer can't beat it, sell to Carmax instead.
01What your trade-in should be worth
A trade-in offer is a wholesale price. The dealer has to recondition the car and resell it, so the offer will usually sit below what you would see in a private sale. That is normal. What is not normal is an offer far below what other buyers will pay in writing.
Get at least two or three written offers from instant-offer buyers and other dealers before you negotiate. Those offers are your floor. Online estimate tools are useful for a range, but a firm written offer is the only number a dealer has to beat.
02How the trade-in can lower your sales tax
In many states, sales tax is charged on the new car's price minus your trade-in value. That credit only applies when you trade in to the dealer, not when you sell to someone else. Some states do not allow it, and some limit it, so check your state's rules.
Say the new car's taxable price is $40,000, your trade is worth $15,000, and the tax rate is 6%. With a trade credit, you pay tax on $25,000, which is $1,500. Without it, you pay tax on $40,000, which is $2,400. The trade saved you $900 in tax. When you compare a dealer's trade offer to a higher instant offer, include that tax difference in the math.
03How to negotiate the trade-in without losing money
Keep it out of the first conversation. Settle the out-the-door price of the new car in writing as if you had no trade. Then ask what they will give you for your car. This stops the dealer from moving money between the two numbers, the classic four-square move.
Then reply in writing: I have a written offer of $X for my car. Match it and I will trade it in with you. Otherwise I will sell it to them. Attach the offer.
Check the final buyer's order. The trade allowance, your loan payoff, and the new car price should each be shown on their own line.
04What to bring when you trade in your car
Bring the title if you own the car outright, or your lender's name, account number, and a current payoff quote if you still owe on it. Bring all keys and fobs, since a missing key can reduce the offer. Bring your registration and any service records. If you owe more than the car is worth, read about being underwater before you go.
05Questions buyers ask
Should I tell the dealer I have a trade-in up front?
You do not have to. Get the new car price in writing first. Mentioning the trade early gives the dealer room to show you a generous trade number while quietly holding firm on the price.
Should I fix dents or detail the car before trading it in?
A clean car makes a better first impression and costs little. Major repairs usually do not pay for themselves, because the dealer can fix things more cheaply than you can. Small, cheap fixes are fine. Big ones are rarely worth it.
Have a dealer quote with this on it? Check it with the free dealer fee checker: every line comes back junk, negotiable or legit, with what it really costs.