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Authorities and scope

Every changing charge needs a responsible source

State taxes and fees change on different calendars. We identify which authority supports each calculated or routed line.

Consumer Financial Protection BureauChecked 2026-08-17

Auto loans consumer tools

shopping by total cost, comparing financing choices and checking paperwork before closing

Open source
Consumer Financial Protection BureauChecked 2026-08-17

Auto Loan Shopping Sheet

side-by-side loan and deal comparison

Open source
USA.govChecked 2026-08-17

State motor vehicle services

verified routes to each state motor-vehicle authority

Open source
Texas Comptroller of Public AccountsChecked 2026-08-17

Motor Vehicle Sales and Use Tax

6.25 percent rate, dealer trade-in allowance, private-party SPV scope and county payment route

Open source
Texas Comptroller of Public AccountsChecked 2026-08-17

Private-Party Purchases and Standard Presumptive Values

private-party standard presumptive value boundary

Open source
California Department of Motor VehiclesChecked 2026-08-17

Vehicle registration fee calculators

official California registration and transfer fee estimates

Open source
New York State Department of Motor VehiclesChecked 2026-08-17

Passenger vehicle registration fees, use taxes and supplemental fees

official New York passenger registration fee method and related charges

Open source