Any fee assessed and collected by a political subdivision pertaining exclusively to a rental unit or rental unit community must be maintained in a special fund dedicated solely to reimbursing the costs actually incurred by the political subdivision relating to the imposition and amount of the fee. Each fund shall be maintained as a separate line item in the political subdivision's budget. Money in the fund may not at any time revert to the general fund or any other fund of the political subdivision.
IC 36-1-20-3