The Property Tax Year is April 1st through March 31st. Property tax bills are sent semiannually. The first installment bill is due on July 1st, the second installment due date varies depending on the date the tax rate is set and the date the bills are postmarked, generally no later than December 20th. The July Tax Bill is an estimate based on 50% of the prior year's tax rate. Once the State Department of Revenue sets the Tax Rate, the December bill covers the balance of the property tax owed for the tax year. Please note: if you are purchasing or selling a home, property taxes will be prorated by day from April 1st of that year.