1. The two-sevenths collected to fund the tax maintenance fund pursuant to section 52.290 and all moneys collected to fund the tax maintenance fund under subsection 2 of section 52.290 shall be transmitted monthly for deposit into the tax maintenance fund and used for additional administration and operation costs for the office of collector. Any costs shall include, but shall not be limited to, those costs that require any additional out-of-pocket expense by the office of collector and it may include reimbursement to county general revenue for the salaries of employees of the office of collector for hours worked and any other expenses necessary to conduct and execute the duties and responsibilities of such office.

2. The tax maintenance fund may also be used by the collector for training, purchasing new or upgrading information technology, equipment or other essential administrative expenses necessary to carry out the duties and responsibilities of the office of collector, including anything necessarily pertaining thereto.

3. The collector has the sole responsibility for all expenditures made from the tax maintenance fund and shall approve all expenditures from such fund. All such expenditures from the tax maintenance fund shall not be used to substitute for or subsidize any allocation of county general revenue for the operation of the office of collector.

4. The tax maintenance fund may be audited by the appropriate auditing agency. Any unexpended balance shall be left in the tax maintenance fund, to accumulate from year to year with interest.