Originally Posted By: yesthatsteve
Originally Posted By: JayhawkRoy
Missouri DOR Form 1957 fulfills this function. If you didn't get one, you will be required to produce one from the seller.
A car from a dealer should have come with DOR Form 108, an Application for Title. That form has a space for Net Price, less any trade-in, rebate, or other credit that affects sales tax amount.
Missouri requires you to pay sales tax at the DMV when you title the car.
The license office isn't going to let you do anything without the form referenced above. If the dealer didn't complete it, you should call them ASAP.