This Act requires a county to issue a refund to a taxpayer for property tax determined to have been overpaid for that year after an assessment appeal if the amount is $50 or greater. A county may elect to refund or credit the amount against future taxes due when the overpayment is less than $50. Amounts in school taxes determined to have been overpaid by a taxpayer after an assessment appeal will be refunded by the county following the same rule.