The price that matters is the one out the door.
Enter a price and your ZIP — get the itemized truth: sales tax computed with your state's actual rules, registration, doc fee caps, and which lines are pure dealer profit.
Recently reported real deals
Browse the database →Why generic calculators get it wrong
They ask YOU for the tax rate
We look it up — state + county + district for your ZIP, with the edge cases handled: Florida's surtax stops at $5,000; Washington adds 0.3% on vehicles; Texas is flat 6.25% everywhere.
They miss the state rules
California taxes your rebate and gives no trade-in credit. Texas does the opposite. On a $40,000 deal with a $10,000 trade, that's a four-figure difference in tax alone.
They can't see real doc fees
Where doc fees are capped, we show the statute. Where they aren't, we show what real buyers report — per state, and over time per dealership.
Out-the-door rules by state
Just bought — or just got a quote?
Every itemized report makes the next buyer harder to overcharge. Add-ons, F&I products, and doc fees are captured line by line — anonymously. Quotes you walked away from count too.