Sec. 5. (a) Before the Thursday after the first Monday in August of each year, each county officer and township assessor (if any) shall prepare an itemized estimate of the amount of money required for the officer's or assessor's office for the next calendar year. Each budget estimate under this section must include:
(1) the compensation of the officer;
(2) the expense of employing deputies;
(3) the expense of office supplies, itemized by the quantity and probable cost of each kind of supplies;
(4) the expense of litigation for the office; and
(5) other expenses of the office, specifically itemized;
that are payable out of the county treasury.
(b) If all or part of the expenses of a county office may be paid out of the county treasury, but only under an order of the county executive to that effect, the expenses of the office shall be included in the officer's budget estimate and may not be included in the county executive's budget estimate.