Property and real estate taxes are due Monday. The due date is actually October 15th, but since that is Sunday, your taxes are due on Monday, the 16th. You can pay your property and real estate taxes in person in the Tax Collector’s Office in the Columbia County Annex, on the square. After hours, you can use the safety deposit box on the front of the Annex. If paying by mail, your payment must be postmarked by Monday. There are also a couple ways to pay online; go to CountyOfColumbia.org to use those links.