Sell or trade your car when buying a BMW
A private sale usually puts more money in your pocket. A trade-in costs less time, carries less risk and settles your loan payoff, title and DMV paperwork in the same deal. Here is the comparison, with the numbers for San Rafael and the rest of Marin.
The short answer
Sell privately if getting the most money matters more to you than your time, and you're comfortable handling strangers, payment and DMV forms. Trade in if you want one transaction, your loan paid off by the dealer, and the title transfer handled for you. Unlike many states, California gives no sales-tax break for a trade-in, so the choice comes down to the price gap against your time and risk.
The California sales-tax math on a trade vs. a private sale
Trade-in advice written for a national audience often says a trade is worth more than its price because it lowers the sales tax on your next car. That holds in many states. It does not hold in California. The California Department of Tax and Fee Administration (CDTFA) states it directly in its guide for motor vehicle dealers: the allowance for a trade-in "cannot be excluded from the amount on which tax is based." Its own example is a $20,000 car sold with a $4,000 trade-in, taxed on the full $20,000.
So in California, sales tax is the same whether you trade your current car, sell it privately, or keep it. The tax shouldn't sway the decision in either direction. What's left to compare is what each route pays you and what it asks of you.
A worked example at the San Rafael rate
Say you're buying a BMW with a $65,000 selling price and registering it at a San Rafael address. A dealer offers $30,000 for your current car, and you believe you could get $33,000 selling it yourself. Those figures are illustrative, not quotes. Your own numbers come from an appraisal and from real listings for your car.
| Line | Trade in | Sell privately |
|---|---|---|
| New BMW selling price | $65,000 | $65,000 |
| Amount sales tax is based on | $65,000 (the trade isn't subtracted) | $65,000 |
| Sales tax at 9.25% | $6,012.50 | $6,012.50 |
| Money received for your current car | $30,000 credited to the deal | $33,000 paid by the private buyer |
| Left to pay, before DMV fees and other itemized charges | $41,012.50 | $38,012.50 after applying the sale cash |
| Tax saved by trading | $0 | Not applicable |
In a state that does credit trade-ins, the same $30,000 trade would cut the tax by $2,775 (9.25% of $30,000), and that saving would nearly close a $3,000 price gap. In California it doesn't exist, so in this example the private sale comes out $3,000 ahead before you count the costs of selling it yourself: a smog certificate if your car needs one, listing and detailing, and the hours spent on calls, showings and test drives.
Your rate follows your registration address
For a vehicle, the local district tax depends on where the car is registered, not where it's bought. A San Rafael dealership charges the rate for your address. CDTFA's published rates for the towns in this guide:
| Registered in | Combined rate |
|---|---|
| City of San Rafael | 9.25% |
| City of Novato | 9.25% |
| City of Larkspur | 9.25% |
| Town of Fairfax | 9.00% |
| Unincorporated Marin County, including Kentfield | 8.25% |
As of October 2026. Trade-in rule: CDTFA Publication 34, Motor Vehicle Dealers, section "Trade-ins." Rates: CDTFA California City and County Sales and Use Tax Rates, effective October 1, 2026. Greenbrae addresses can fall inside Larkspur city limits or in unincorporated Marin; check yours with CDTFA's address rate lookup.
Three ways to move your current car
Most Marin owners weigh three routes. Each one suits a different situation, and the right one depends on how much your time is worth and how much of the paperwork you want to handle.
Whichever route you choose, get every offer in writing, and compare offers made on the same day for the same condition and mileage.
What a private sale in California actually involves
If the price gap on your car is large, a private sale can be well worth the effort. A well-kept, low-mileage car in a color and spec that buyers want is where the gap tends to be widest. Here is what the process looks like, using the requirements the California DMV publishes.
- Price it against real listingsCompare cars of the same model year, trim, mileage and condition listed for sale near you, not just an online estimate. Note what they actually sell for, which is often less than the asking price.
- Get your payoff figure if there's a loanIf a lender holds the title, ask it for a written payoff amount and how it releases the title once paid. The buyer will want to know how the lien gets cleared before handing over money.
- Arrange the smog certificate if neededThe DMV says the seller must give the buyer a valid smog certification. Electric vehicles are exempt, and for gasoline cars under four years old the buyer pays a smog transfer fee instead of an inspection.
- Screen buyers and handle test drivesMeet in a public place, confirm the buyer's license before a test drive, and ride along. This is the part of a private sale that takes the most time and carries the most personal risk.
- Verify payment before you sign anythingConfirm the funds have cleared with the issuing bank before signing over the title. Payment fraud is the main financial risk of a private sale.
- Sign the title and file your release within 5 daysSign the California Certificate of Title over to the buyer, then submit a Notice of Transfer and Release of Liability to the DMV within 5 days. That filing protects you from parking tickets, tolls and liability incurred after the sale.
The buyer then has 10 days to report the change of ownership to the DMV, and pays use tax on the purchase price when registering the car. That tax is the buyer's cost, not yours, so it doesn't change what you net from the sale.
As of October 2026. Sources: California DMV, Title Transfers and Changes and Smog Inspections; CDTFA, Tax Guide for Purchasers of Vehicles.
Who does the paperwork in each case
Most of the effort in a private sale is paperwork that a trade-in shifts to the dealer. Side by side:
| Task | Trade in | Sell privately |
|---|---|---|
| Pay off the loan and release the lien | Dealer pays the lender from the deal | You arrange it with your lender and the buyer |
| Sign the title | You sign, dealer handles the rest | You and any lienholder sign it to the buyer |
| Notice of Transfer and Release of Liability | Dealer reports the sale; filing your own is a sensible backstop | You file it within 5 days |
| Verify payment | No payment to verify; credited on the contract | You confirm the funds before signing |
| Liability for a car you no longer drive | Ends once the transfer is reported | Continues until your release is filed |
If you still owe money on the car
A loan doesn't stop you from trading or selling, but it changes the arithmetic. What matters is your equity: what the car is worth minus what you owe.
- Positive equityIf the car is worth more than the payoff, the difference is yours. On a trade it's applied to your new BMW. On a private sale the buyer's payment clears the loan first and you keep the rest.
- Negative equityIf you owe more than the car is worth, the shortfall has to be paid somewhere. On a trade it can be paid in cash or, with lender approval, added to the new loan, which raises the amount you finance. On a private sale you cover it before the lender releases the title. Either way, see the number written out before you agree to anything.
- Payoff quotes expireLenders quote a payoff good through a specific date because interest keeps accruing. Use a current quote when you compare offers.
- Leased cars are differentThe leasing company owns a leased car, so your options run through it. Ask the leasing company what a buyout costs and whether it allows a buyout by a dealer or other third party before you plan around one.
Selling your car in San Rafael without buying another
Not everyone selling a luxury car in Marin is buying a new one. You might be moving, cutting to one car, or switching to a car you'll buy elsewhere. In that case a trade isn't on the table, and the comparison is between a private sale and a business that buys cars outright.
Our trade valuation tool gives an estimate of your car's trade-in value based on local market data in under 30 seconds. It's set up as a trade-in tool, so if you aren't buying from us, say so when you get in touch and ask whether we'll make a written offer to buy the car outright. You can use that figure as a benchmark against a private sale or another buyer either way.
How a trade works when you buy your BMW here
If you decide to trade, keep the trade-in and the new car on separate lines so you can judge each one on its own. We put every figure, the trade allowance, payoff, taxes, DMV fees and any other charges, in writing and itemized before you commit, so you can check the trade number against your private-sale estimate rather than seeing only a monthly payment.
Much of it can happen before you arrive. Start with the online valuation, send the details of your loan, and handle the rest by phone, email or text. Our guide to buying a BMW without the traditional dealership hassle covers how that remote process works, and the BMW Concierge Experience puts one advisor in charge of the whole deal, trade-in included.
Start with a written appraisal. Once you know the gap between it and a realistic private-sale price, the decision usually makes itself.A small gap favors the trade and its convenience. A large one can be worth the work of selling it yourself.
Getting to BMW of San Rafael from around Marin
BMW of San Rafael is at 1599 Francisco Blvd E, under a mile off US-101 where it meets I-580, so bringing your current car in for an in-person appraisal is a short drive from most of Marin.
Drive times are without traffic, measured with OpenStreetMap routing in October 2026. For a map, see our directions page.
Questions about selling or trading in Marin
Does trading in my car lower the sales tax on a new BMW in California?
No. California taxes the full selling price of the new vehicle. CDTFA's guidance for dealers says a trade-in allowance cannot be excluded from the amount on which tax is based, so you pay the same sales tax whether you trade, sell privately, or keep your current car.
Is it better to trade in or sell privately when buying a BMW?
A private sale usually pays more, while a trade-in saves time and shifts the loan payoff, title transfer and DMV filing to the dealer. Because California gives no tax credit for trades, compare the private-sale price you can realistically get against a written trade appraisal, then decide whether the difference is worth the effort and risk.
What is the sales tax rate on a car in San Rafael?
As of October 2026, CDTFA lists a combined rate of 9.25% for the City of San Rafael. The rate for a vehicle follows the address where it is registered, so a car registered in Fairfax is taxed at 9.00% and one registered in unincorporated Marin, such as Kentfield, at 8.25%.
Can I sell my car in San Rafael without buying another one?
Yes. You can sell privately or to a business that buys cars outright. BMW of San Rafael's online trade valuation tool gives an estimate based on local market data. If you aren't buying a car from us, say so when you contact us and ask whether we'll make a written offer to buy yours outright.
Can I trade in a car I still owe money on?
Yes. The dealer pays off your lender as part of the deal. If the car is worth more than the payoff, the difference is credited toward your new BMW. If you owe more than it is worth, the shortfall is paid in cash or, with lender approval, added to the new loan.
What do I have to file with the DMV after selling my car privately?
Sign the California Certificate of Title over to the buyer and submit a Notice of Transfer and Release of Liability to the DMV within 5 days. Unless the car is exempt, you also give the buyer a valid smog certification.
How far is BMW of San Rafael from Novato?
About 12.6 miles, roughly 15 minutes without traffic: US-101 south to I-580, then Francisco Boulevard East. The store is at 1599 Francisco Blvd E, San Rafael.
Know your number before you decide
A written appraisal tells you exactly what a trade is worth, so you can weigh it against a private sale on real figures. Start online, or call us at (415) 482-2000. Sales hours are Monday through Saturday 9:00am to 6:00pm and Sunday 11:00am to 5:00pm.