In a county that does not have the office of county auditor and in which the county treasurer is compensated on a fee basis, the treasurer is entitled to annual compensation for keeping the county finance ledger and for making the statements required by Section 114.021. The compensation is in an amount that equals $5 for each $1,000 tax assessed and due to the county, but the amount may not be less than $100 or more than $250. Compensation under this section is paid on the order of the commissioners court.