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6.10 Sales and Use Tax
We covered the basics of sales tax in Section 1, but let’s go deeper here because tax compliance is a critical dealer obligation. California imposes a sales tax on the retail sale of tangible personal property — and vehicles are tangible personal property. The base state rate is 7.25 percent, but every jurisdiction adds local and district taxes on top of that, so the actual rate varies by location.
Use tax is the complement to sales tax. It applies when a buyer purchases a vehicle in a situation where sales tax was not collected — for example, a private party purchase or an out-of-state purchase. The use tax rate is the same as the sales tax rate for the buyer’s location. As a dealer, you primarily deal with sales tax rather than use tax, but you should understand both concepts.
As a reminder: California provides NO trade-in credit against sales tax. The full selling price of the vehicle is subject to sales tax. This is a frequently tested area in compliance audits. If you’re calculating the tax owed on a sale and you subtract the trade-in value from the selling price before applying the tax rate, you’re undercharging, you’re underreporting, and you’re in violation.
Dealers must file regular sales tax returns with the California Department of Tax and Fee Administration — the CDTFA. Depending on your sales volume, you may file monthly, quarterly, or annually. The taxes you collect from buyers must be remitted with your return. CDTFA conducts audits, and discrepancies between your reported sales and your actual sales (as reflected in DMV records of your Reports of Sale) will be identified and pursued.