Missouri Revised Statutes Title X. Taxation and Revenue § 144.071. Rescission of sale requires tax refund, when

1. In all cases where the purchaser of a motor vehicle, trailer, boat or outboard motor rescinds the sale of that motor vehicle, trailer, boat or outboard motor and receives a refund of the purchase price and returns the motor vehicle, trailer, boat or outboard motor to the seller within sixty calendar days from the date of the sale, any tax paid to the department of revenue shall be refunded to the purchaser upon proper application to the director of revenue.

2. In any rescission whereby a seller reacquires title to the motor vehicle, trailer, boat or outboard motor sold by him and the reacquisition is within sixty calendar days from the date of the original sale, the person reacquiring the motor vehicle, trailer, boat or outboard motor shall be entitled to a refund of any tax paid as a result of the reacquisition of the motor vehicle, trailer, boat or outboard motor, upon proper application to the director of revenue.

3. Any city or county tax refunds shall be deducted by the director of revenue from the next remittance made to that city or county.

4. Each claim for refund must be made within one year after payment of the tax on which the refund is claimed.

5. As used in this section, the term “boat” includes all motorboats and vessels as the terms “motorboat” and “vessel” are defined in section 306.010.