When are real estate and personal property taxes due each year?

Currently, the real estate and personal property tax bills are mailed and due four (4) times a year. Preliminary bills are due August 1st and November 1st. Actual tax bills are due February 1st and May 1st. The preliminary bills do not have a tax rate or value. The actual tax bill in December has the new tax rate and the new value for the Fiscal Year.