Florida Department of Revenue - discretionary sales surtax
County surtax applies to the first $5,000 of the taxable amount for a motor vehicle; 2026 county rates are versioned in the calculator.
Open official source ↗Primary-source registry
Official vehicle tax and consumer sources
Calculator rules and buying guides link to public revenue, motor-vehicle and consumer-protection sources. Variable estimates are labelled rather than presented as exact government totals.
Calculator-source review: 18 July 2026Guide-source review: 26 July 2026
Florida
Florida Department of Revenue - motor vehicle sales tax guide
Taxable vehicle price includes required dealer preparation, settlement, closing and similar charges; mandated title/registration charges are excluded.
Open official source ↗Florida Highway Safety and Motor Vehicles - fee schedule
Official title, registration-base, plate and initial-registration fee amounts.
Open official source ↗Texas
Texas Comptroller - motor vehicle sales and use tax
6.25% motor-vehicle tax and qualifying trade-in treatment.
Open official source ↗Texas Comptroller - total consideration
Official inclusions and exclusions, including the exclusion for a separately stated documentary fee.
Open official source ↗Texas Comptroller - Standard Presumptive Value
Private-party tax base uses the greater of sales price or 80% of SPV unless a valid certified appraisal applies.
Open official source ↗Texas DMV - registration guidance
Title, registration and local-fee references; local and inspection charges can vary.
Open official source ↗Washington
Washington Department of Revenue - motor vehicle sales/use tax
Additional motor-vehicle sales/use tax is 0.5% from 1 January 2026.
Open official source ↗Washington Department of Revenue - trade-ins
Qualifying like-kind trade-in value reduces the regular retail-sales-tax measure and is not reduced by a loan payoff.
Open official source ↗Washington Department of Revenue - luxury motor-vehicle tax
8% tax applies to the portion over the current statutory threshold; the threshold is date-sensitive.
Open official source ↗Washington Department of Revenue - dealer document service fee
The document service fee is not subject to retail sales tax and has a published statutory cap.
Open official source ↗Washington Department of Licensing - common vehicle fees
Published title, filing, service and license-tab fees; location-based charges remain variable.
Open official source ↗Consumer guidance
Federal Trade Commission - buying a vehicle
Compare total price, question unfamiliar charges and do not evaluate a deal only by monthly payment.
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