Indiana Code Title 6. Taxation § 6-6-16-2

Sec. 2. (a) An excise tax, known as the vehicle sharing excise tax, is imposed upon the sharing of passenger motor vehicles and trucks in Indiana for periods of less than thirty (30) days.

(b) The vehicle sharing excise tax imposed upon the sharing of a passenger motor vehicle or truck equals:

(c) The gross retail income from each transaction under this section is the total amount of consideration paid by the shared vehicle driver, including the payment of any fee, commission, or other charge by the peer to peer vehicle sharing program, except that it does not include any taxes on such a transaction.