The median Alpharetta homeowner pays $5,142/year in property taxes. That is 3.48% of median household income. See how Alpharetta compares and check your savings potential.
Twenty-five miles up Georgia 400 from downtown Atlanta, Alpharetta has turned itself from a Fulton County farm town into one of the Southeast's busiest technology employment centers, with corporate campuses strung along the highway and a rebuilt downtown that fills up most weekends. Housing demand followed the jobs. The median Alpharetta home now runs about $649,000, more than 41 percent above the Fulton County median of $458,800, and with a median household income of $147,612 the typical homeowner here sends roughly 3.5 percent of that income to property taxes each year. Fulton's effective rate averages about 1.42 percent of market value, so the assessed figure on your notice does the heavy lifting in what you ultimately owe. That figure comes from countywide mass-appraisal models, and Fulton is a difficult county to model: home values across it run from roughly $286,572 at the 25th percentile to $735,809 at the 75th, spanning everything from aging south Fulton bungalows to new construction near Avalon. A system calibrated across that spread can misread an individual Alpharetta property badly, especially where 1980s subdivisions sit a mile from luxury townhomes and the comparable sales pool mixes both. If your assessment jumped more than actual sales on your street justify, that is an appealable opinion, not a settled fact. You get 45 days from the date printed on the assessment notice to file, and that deadline is firm.
Alpharetta Appeal Quick Facts
The median home in Alpharetta is valued at $649,000, and the typical homeowner pays about $5,142 per year in property tax (Census ACS 2024), based on Fulton County's 3.553% combined millage applied to 40% of fair market value after exemptions. That means the typical Alpharetta homeowner spends 3.48% of household income on property taxes alone. Alpharetta combines higher-than-average home values with a heavy tax burden. If your home is overassessed by even 10%, the cost adds up fast. Higher home values mean a larger tax bill and a bigger payoff from a successful appeal. At $649,000, Alpharetta home values are 42% above the Fulton County median, 281% above Georgia's statewide median of $170,200, 104% above the national median of $318,000.
Check If Your Alpharetta Home Is Overassessed
Alpharetta's median home value is the highest among these Fulton County cities, which means overassessment costs more here than anywhere else in the county.
With a population of 66,855, Alpharetta has plenty of recent sales to draw from. The strongest evidence is 3-5 comparable sales: homes similar to yours in size, age, and condition that sold recently for less than your assessed value. Focus on per-square-foot price comparisons and adjust for differences in lot size, condition, and amenities. For the full evidence strategy, exemption details, and step-by-step filing instructions, see our Fulton County Property Tax Guide.
Based on a combined tax rate of 3.553%. Your actual rate may vary by tax district.
A 10% reduction on the median Alpharetta home ($649,000 down by $64,900) would save approximately $922 per year, or $2,766 over three years with the 299c value freeze.
At 3.48% of household income, even a modest reduction in your assessed value makes a real difference in your annual budget.
Property tax appeals in Alpharetta are filed with the Fulton County Board of Assessors. You have 45 days from the date of your assessment notice to submit a PT-311A form.
Fulton County Board of Assessors: 141 Pryor St., Suite 2052, Atlanta, GA 30303 | 404-730-6440 For the full appeal process and deadline details, see our Fulton County Property Tax Guide.
Based on 2024 American Community Survey estimates and Fulton County millage rates.