Indiana Code Title 6. Taxation § 6-3.6-7-3

Sec. 3. (a) A separate tax rate is permitted under this chapter for each of the special purposes set forth in this chapter.

(b) The rate permitted under the section in this chapter authorizing the special purpose tax rate may include a rate to repay bonds issued or leases entered into for the special purpose.  However, for a bond or lease entered into after December 31, 2015, the term of the bonds issued (including any refunding bonds) or a lease entered into under this section may not exceed twenty (20) years, unless the section in this chapter authorizing the special purpose tax rate specifies a different term.  The adopting body shall provide a notice to the budget agency, the department of local government finance, and the department of state revenue specifying that the date for the termination of the tax rate has occurred.

(c) If the section in this chapter authorizing the special purpose tax rate does not specify what to do with money accumulated from the tax after:

the money accumulated shall be transferred to the county highway fund to be used for construction, resurfacing, restoration, and rehabilitation of county highways, roads, and bridges.