Calculating the out-the-door price helps you understand the true cost of a used car before you buy.
Begin with the negotiated price of the used vehicle.
This is only the starting point.
Include sales tax, registration, and dealer documentation fees.
Add any optional add-ons you agree to.
Most fees are similar, but taxes may vary by state.
https://outthedoor.autos/learn/how-to-calculate-out-the-door-price-used-car