Can I change my payment due date? Yes, just call the number on the back of your card.Online property tax payments can only be made for the full amount, and must be paid on or prior to the due date. Fulton County taxes are normally due October 15. Checks must be made out to the Fulton County Treasurer. Real estate taxes are generally due on February 5 th for the first half billing and July 20 th for the second half billing. Search For a Tax Bill - This feature allows you to search for a tax bill or bills using a complete or partial parcel ID, account number, or physical address. County Tax payments can be paid from January 1st - March 31st. Exemption applications must be filed with your local assessor's office. See our Municipal Profiles for your local assessor's mailing address.