New Car Pricing Calculator

How to use this new car pricing calculator

Buying a new car is rarely as simple as the price on the window. Between the sales tax, dealer documentation fees, title and registration, and any trade-in or manufacturer rebate, the final out-the-door price can land thousands of dollars above the sticker. This calculator helps you estimate that number before you walk into the dealership, using the actual tax rules for your state, not just a flat percentage.

Enter your negotiated price (or use our invoice price), pick your state, and add any trade-in or rebate that you find that applies to you. The tool applies the correct state-specific rules or when it varies, a general average. Whether your trade-in reduces the taxable amount, whether rebates are taxed before they're applied, whether documentation fees are part of the tax base, and any state-specific caps (like Illinois's $10,000 trade-in cap or South Carolina's $500 sales tax cap). The result is a realistic out-the-door figure, not a back-of-envelope guess.

What is "out the door" price?

The out-the-door (OTD) price is the total amount you'll pay to drive your new car off the lot. It's the negotiated vehicle price plus everything the dealer adds on top. It also looks at sales tax, title fee, registration, documentation fee, and sometimes additional state-specific charges. When you ask a dealer for the "OTD price," you're asking for the bottom line, no surprises at signing.

Most negotiation guides recommend negotiating on the OTD price rather than the vehicle price alone. A dealer can knock $1,000 off the sticker but make it back with a $999 documentation fee, leaving you in the same place. Anchoring on OTD forces every line item into the conversation.

Invoice price vs. MSRP: what's the difference?

The MSRP (Manufacturer's Suggested Retail Price) is the sticker price, what the manufacturer recommends the dealer charge. The invoice price is what the dealer actually paid the manufacturer for the vehicle. The gap between the two is the dealer's gross margin before incentives, holdback, and dealer cash. We recommend knowing the invoice price and using it within our calculator as your goal figure during the negotiation process, rather than MSRP. That way, you can see how much room there is to move and what your final OTD price would be at different points in the negotiation. You can look up real invoice pricing for any new vehicle on invoice-pricing.com.

What fees should you expect?

Beyond the negotiated vehicle price, expect three categories of charges:

Sales tax is the largest. State rates range from 0% (Alaska, Delaware, Montana, New Hampshire, and Oregon) to over 7% before local add-ons. Some states (like California, Hawaii, Maryland, Oklahoma, Virginia, and DC) don't allow trade-in tax credits, meaning you pay tax on the full price even if you trade in a vehicle. Most states tax the price before any manufacturer rebate is applied, so don't assume a $2,000 rebate saves you tax on $2,000.

Title and registration are paid to the state. Title fees are usually flat ($5-$100 depending on the state). Registration fees are often weight-based, value-based, or age-based. California, Arizona, Colorado, and several others calculate registration as a percentage of vehicle value, which can get expensive ($400+) in certain states.

Documentation fees are charged by the dealer to process paperwork. These vary wildly: some states cap them (Arkansas at $129, California at $85, Texas at $225). Some states have no cap and charge upwards of $500 to $900 routinely. In Alabama, Arizona, California, Florida, Illinois, and Missouri, doc fees are themselves taxable, which adds a small amount to your total tax bill.

Does a trade-in reduce sales tax?

In most states, yes. If you trade in a vehicle worth $10,000 toward a $40,000 vehicle, you're typically taxed on the $30,000 difference, not the full $40,000. At a 7% sales tax rate, that's $700 in savings.

The exceptions: California, Hawaii, Maryland, Oklahoma, Virginia, and the District of Columbia do not allow a trade-in tax credit. In these states, you pay sales tax on the full vehicle price regardless of trade-in value. Illinois caps the trade-in credit at $10,000, and Michigan caps it at $11,000, any trade value above the cap doesn't reduce your tax base.

Do I pay sales tax on a manufacturer rebate?

In most states, yes, even though the rebate reduces what you pay out of pocket. The dealer ultimately receives the full pre-rebate price (the rest comes from the manufacturer), and most state tax codes treat that full price as the taxable amount. So a $2,000 rebate on a $35,000 car still gets taxed as if the car cost $35,000.

States where rebates do reduce the taxable amount include Alaska, Delaware, Iowa, Kansas, Kentucky, Louisiana, Massachusetts, Minnesota, Missouri, Montana, Nebraska, New Hampshire, Oklahoma, Oregon, Pennsylvania, Rhode Island, Texas, Utah, Vermont, West Virginia, and Wyoming. Everywhere else, assume the rebate doesn't help your tax bill, though it does still reduce your final price.

How accurate is this calculator?

The calculator uses state tax rates and rules as of May 2026, sourced from state Departments of Revenue, the Tax Foundation, and other sources. It applies state-specific behavior including trade-in credit availability, rebate taxability, doc fee taxability, and special caps.

That said, the result is always an estimate. Local sales tax rates vary by ZIP code within a state, the calculator uses a reasonable statewide average, but the rate at your specific dealer might be higher (especially in metro areas like Chicago, NYC, or Seattle) or lower. Title and registration fees in weight, value, or age-based states are shown as midpoint estimates and can be off by $100 or more on either side. Always confirm the final out-the-door price with your dealer before signing.