Indiana Code Title 36. Local Government § 36-1-8-6

Sec. 6. (a) The unused and unencumbered balance of an appropriation made by a unit for any purpose reverts, at the end of the unit's fiscal year, to the fund from which the appropriation was made, unless a statute provides otherwise.

(b) Any amount necessary to pay a bill, judgment, or valid claim concerning any balance that reverts under subsection (a) shall be taken from the fund to which it reverted to pay the bill, judgment, or valid claim.

(c) Notwithstanding subsection (a), if an appropriation is made by a unit to establish or maintain a program of self-insurance by the unit, the balance described in subsection (a) reverts to the fund only if the fiscal body of the unit specifically adopts subsection (a) when it makes the appropriation.

(d) Subsection (a) does not apply to dedicated or appropriated funds received from the state or the United States, to funds of municipal utilities, or to balances of appropriations made from the general fund of a city for transfer to the aviation fund of the city.