Indiana Code Title 36. Local Government § 36-10-4-38

Sec. 38. (a) To raise money to pay all bonds issued under section 35 of this chapter, including interest, the board shall levy each year a special tax upon all of the real and personal property located in the district to pay the principal of the bonds as they mature, together with all accruing interest.  The board shall have the tax levied each year certified to the auditor of the county in which the district is located by October 1 each year.

(b) The tax levied and certified shall be collected and enforced in the same manner as other city taxes are collected and enforced.  As the tax is collected, it shall be accumulated and kept in a separate fund to be known as the park district bond fund.  The tax shall be used to pay the bonds and interest as they mature and may not be used for any other purpose.

(c) All accumulations of the fund before use for the payment of bonds and interest shall be deposited, at interest, with one (1) of the depositories of other public funds of the city, with interest collected belonging to the fund.