41% of Fulton County homes were overvalued in 2025 — your 45-day appeal window closes around August 1.
Last Chance: Fulton County Property Tax Appeal Deadline Is Approaching Fulton County assessment notices are expected to arrive in mid-June 2026, and if the past five years are any indication, your Fulton County property tax appeal deadline 2026 will fall around August 1. That gives you roughly 45 days to decide whether to challenge the county's valuation of your home — and not a day more. In 2025, residential assessments rose 5.9% countywide while actual sale prices rose only 3.7% per Georgia MLS data. The Board of Assessors' own figures show that 41% of residential properties were overvalued. Over 30,000 appeals were filed in 2023 alone. If your notice looks too high, you are probably right. But the window to do something about it is narrow, and it is already open. What the Numbers on Your Assessment Notice Mean Georgia law requires all property to be assessed at 40% of its fair market value. Your county does not tax you on what your home is worth — it taxes you on 40% of that number, called the assessed value. If your county says your home is worth $400,000, your assessed value is $160,000. That $160,000 is what the millage rate applies to when calculating your tax bill. This ratio is set by state statute (O.C.G.A. 48-5-7) and applies uniformly across all 159 Georgia counties. What Your Assessment Notice Actually Tells You Your Annual Notice of Assessment arrives by mail from your county Board of Tax Assessors. It is not a tax bill — it is the county's estimate of your property's fair market value as of January 1 of the current year. The notice shows three key numbers: Fair Market Value (FMV) — what the county believes your home would sell for. This is the number you can appeal. Assessed…