Trade in or sell privately? What Texas buyers should know

Updated September 29, 2026 · 4 min read

If you have a car to get rid of, you can trade it in at the dealer you're buying from, or sell it yourself. A private sale usually brings a higher price; a trade-in is faster and, in Texas, lowers the tax on the car you're buying. Here's how to compare them fairly.

The Texas tax difference

When you trade a car in at a dealer as part of buying another, Texas generally charges the 6.25% motor vehicle sales tax only on the difference between the new car's price and your trade-in's value. Sell your old car privately instead and you pay tax on the full price of the car you buy. The Texas Comptroller has the details.

A worked example: you're buying a $20,000 car and your old car is worth $8,000.

So the trade-in saves $500 in tax here. Selling privately only comes out ahead if you get more than about $500 above the trade-in offer, and it's worth it to you to handle the sale yourself.

Get a fair trade-in number

If you sell privately

This guide is general information to help you shop, not legal or financial advice. Rules and fees change, so check the official source linked above before you rely on them.