S.D. Codified Laws § 32-5B-20
There is hereby imposed a tax of four and one-half percent upon the gross receipts of any person renting a rental vehicle as defined in § 32-5B-19. This tax applies to all vehicles registered in accordance with § 32-5-6, 32-5-8.1, or 32-5-9. Any rental vehicle not licensed in accordance with § 32-5-6, 32-5-8.1, or 32-5-9 is subject to the motor vehicle excise tax in § 32-5B-1.
The tax imposed by this section is in addition to any tax levied pursuant to chapter 10-45 or 10-46 upon the rental of a rental vehicle. The provisions of chapter 10-45 apply to the administration and enforcement of the tax imposed by this section. The tax imposed by this section is in lieu of the tax levied by § 32-5B-1 on the sales of such motor vehicles. A violation of this section is a Class 1 misdemeanor.
SDCL 32-5B-20