Indiana Code Title 6. Taxation § 6-6-15-3

Sec. 3. (a) An excise tax, known as the heavy equipment rental excise tax, is imposed upon the rental of heavy rental equipment from a retail merchant in Indiana and received from the retail merchant in Indiana.  Equipment rented from a location outside Indiana is exempt from the excise tax.

(b) The heavy equipment rental excise tax imposed under this chapter is two and twenty-five hundredths percent (2.25%) of the gross retail income received by the retail merchant for the rental.

(c) A retail merchant subject to the heavy equipment rental excise tax is required to collect and remit the excise tax on all rentals of tangible personal property.