Gwinnett County property tax notices are to be received by homeowners by September 15, 2011, according to the AJC. They are due not later than November 15, 2011. The Board of Commissioners apparently lowered the millage rate some this year, so the tax bills should be lower this time. Also, if you appealed your last year tax bill a note should come with your statement explaining that you have been billed for 85% of yur property tax. Pay that amount by amount by November 15th. After your appeal has been completed you will either then be billed or receive a check for the difference. More than 11,000 appeals were filed this year.