Do you pay sales tax on price you paid for used car or blue book value in mo?

In Missouri, sales tax on a used car is calculated based on the purchase price you paid, not the blue book value. If you buy the car from a private seller, you typically report the sale price on your title application. However, if the sale price is significantly lower than the blue book value, the state may assess tax based on the blue book value instead. Always check with your local tax authority for the most accurate and up-to-date information.