It MUST be filed by April 1, 2010. Also, the Fulton County Taxpayer Foundation is holding public workshops in February on how to file your appeals.
I just received responses THIS PAST WEEK from Fulton County on several rental properties I filed a Real Property Return on last March, so they are obviously way behind in processing these returns. For the most part, they are offering little to no reduction in the assessed value, so I imagine I will be spending some time this year pursuing my reassessment through the Board of Equalization and eventually Superior Court.
Make sure you file your Real Property Return again for 2010, even though your 2009 appeal is still in process.
As much as you would like to 'wait'... give them a call with your parcel ID No. and ask for a status update. You are allowed a one-time rescheduling on your part. But, you don't want to be surprised and miss your appeal date with them. Best to you!
I would appeal every year. Make sure to fill out a Property Tax Return form putting an of value lower than your assessment before April 1, 2010 just to have the right of an appeal later - once you get your new tax bill for this year. If the assessment does not go up, you are not able to appeal unless you have filed a Property Tax Return....