Car buying calculator

Turn the advertised price into an itemized drive-away estimate.

Enter the numbers from a buyer’s order and see where every dollar goes—without assuming one state’s tax rules apply nationwide.

Buyer-order friendlyTrade equity separatedNo fabricated state fees

Editable assumptions

Itemized purchase estimate

Advertised vehicle price

Dealer discount

Manufacturer rebate

Dealer-installed accessories

Destination charge

Your verified sales-tax rate

Documentation fee

Title fee

Registration fee

Other itemized fees

Trade-in value

Trade-in payoff

Cash down payment

My jurisdiction allows this trade-in value to reduce the taxable amount

Estimated out-the-door price$34,053.65

Amount to finance$30,053.65

Adjusted selling price$31,195.00

Taxable amount$31,195.00

Estimated sales tax$2,183.65

Trade-in equity$0.00

Dealer fees: $350.00
Government fees: $325.00
Cash due at signing: $4,000.00

Tax and registration rules vary. Use rates and fee amounts from a written buyer’s order; this tool does not apply an unverified state rule automatically.

Results update from your inputs and remain in this browser. They are estimates, not a quote.

Calculation guide

What belongs in an out-the-door price?

The out-the-door estimate combines the adjusted selling price, tax, dealer charges and government fees. Trade equity and cash down reduce the modeled amount to finance, but do not change the dealer’s itemized sale total.

Sales-tax treatment of trade-ins and rebates differs by state and sometimes locality. The calculator therefore asks you to supply a verified rate and explicitly choose whether a trade allowance reduces the taxable amount.

Compare written offers, not monthly-payment pitches

Ask each seller for an itemized buyer’s order. Enter every fee under the matching line and compare the out-the-door totals before financing.