Out-the-Door Price Calculator

The out-the-door price is the full amount a car costs to drive away: selling price + dealer add-ons + documentation fee + sales tax + government title and registration fees. It is routinely thousands above the advertised price. Example: a car advertised at $35,000 with $1,295 of dealer add-ons, an $899 doc fee, 7% sales tax and $450 in government fees costs $40,247.58 out the door, which is $5,247.58 more than the ad says. (Full worked example below.)

How the out-the-door price is calculated

Out the door = (selling price + dealer add-ons + documentation fee) + sales tax + government fees. The dealer charges come first because sales tax is calculated on them in most states: the doc fee and add-ons are taxable, while title, registration and plate fees charged by the state are not, so those are added after the tax. If your state gives a trade-in credit, the tax applies to the subtotal minus your trade-in value; a few states, California among them, tax the full subtotal instead. Pick the rule that matches your state above. The tax rate is yours to enter: states tax cars under different schemes than ordinary sales tax, so use the vehicle rate from your deal sheet or your state revenue department.

The amount to finance is the out-the-door price minus your net trade-in equity (trade-in value minus what you still owe on it) minus your down payment. If you owe more on the trade-in than it is worth, that negative equity is added, exactly as a dealer rolls it into the new deal.

Worked example

A car advertised at $35,000, with a $1,295 dealer add-on package, an $899 documentation fee, 7% sales tax with a trade-in credit (no trade-in here, so the credit changes nothing), and $450 in title and registration fees:

What a trade-in credit is worth

Same $42,699 subtotal, 6% tax, a $15,000 trade-in. With the credit, tax is charged on $27,699 and comes to $1,661.94. Without it, tax is charged on the full $42,699 and comes to $2,561.94. The credit is worth $900 on this deal: exactly your trade-in value multiplied by the tax rate. It is one more reason the same car costs different amounts in different states.

How to use this number

Ask every dealer for an itemized out-the-door quote in writing, with the selling price, every add-on, the doc fee and the government fees on separate lines. Quotes that bundle everything into one number are hiding the lines you can negotiate. Compare dealers on the out-the-door figure, never on the advertised price or the monthly payment. If a line on the quote does not appear on your state title or registration paperwork and is not the car itself, it is a dealer charge, and dealer charges are negotiable or removable.

FAQ

Is the documentation fee negotiable?
Dealers often say the doc fee itself is fixed because charging different buyers different fees raises legal problems. What is negotiable is the total: a dealer who will not move on the doc fee can move the same dollars on the selling price. Judge the out-the-door number, not the line.

Are title and registration fees negotiable?
No. Those are set by your state and county. They should also be small and itemizable: if a "fees" line looks large, ask which part is the government charge and which part is the dealer's.

Why do two dealers quote different out-the-door prices on the same car?
Almost always the add-ons and the doc fee. The selling price and the government fees are usually close; the gap lives in dealer-installed packages and fees, which is why the itemized breakdown matters more than the headline.

Is the out-the-door price the same for cash and financing?
The price of the car is. What changes is what you pay on top of it over time: financing adds interest, which the car loan calculator works out from the amount to finance shown here.