Decatur, GA: Is Your Property Tax Assessment Too High? (2026)
By AppealAlly Team · Published
The median Decatur homeowner pays $9,295/year in property taxes. That is 6.67% of median household income. See how Decatur compares and check your savings potential.
Key Takeaways
Appeal deadline: Georgia law sets it at 45 days from the date of your assessment notice. The date printed on your notice controls. Confirm with your county before you file.Median home value: $701,400 in Decatur.Median annual tax bill: $9,295.Tax burden: 6.67% of median household income in Decatur.Potential savings: ~$1,228/year from a 10% reduction, or $3,684 over 3 years with the 299c freeze (estimated, subject to the statutory exceptions).Filed with: DeKalb County Board of Assessors (not the city).Free to file: the Board of Equalization can lower your value but cannot raise it above the county assessors' figure, except on a value already frozen by an earlier appeal.
Decatur is barely four square miles of tree canopy and bungalow streets wrapped around an old courthouse square, six miles east of downtown Atlanta, with Agnes Scott College on its south side and a MARTA station beneath the center of town. Walkability and an independent city school system have made it one of the most expensive addresses in DeKalb County: the median Decatur home is worth about $701,400, roughly 96% above the DeKalb County median of $357,800. Across DeKalb as a whole, home values stretch from roughly $237,245 at the 25th percentile to $559,874 at the 75th, which means a typical Decatur house is worth more than the county's upper quartile before an appraiser looks at a single detail. The carrying cost matches. Median household income in the city is about $139,397, yet property taxes claim about 6.7% of household income for the typical homeowner here, one of the highest shares in Georgia, since city and school levies stack on top of a DeKalb County effective rate that already runs about 1.75% of home value. At these price levels, small appraisal errors are expensive: if the county's model overshoots your home's value by even a modest percentage, that overage flows through every levy you pay, year after year, until someone challenges it. Recent sales on your own street are the test. Georgia law sets the appeal deadline at 45 days from the date of your assessment notice. The date printed on your notice controls. Confirm with your county before you file.
Decatur Appeal Quick Facts
Appeal Deadline: Georgia law sets it at 45 days from the date of the assessment notice. The date printed on your notice controls. Confirm with your county before you file.
Median Home Value: $701,400 (96% above DeKalb County median)
Median Annual Tax Bill: $9,295 (Census ACS 2024)
Tax Burden: 6.67% of median household income
Is your Decatur property tax assessment too high?
The median home in Decatur is valued at $701,400, and the typical homeowner pays about $9,295 per year in property tax (Census ACS 2024), based on DeKalb County's 4.379% combined millage applied to 40% of fair market value after exemptions. That means the typical Decatur homeowner spends 6.67% of household income on property taxes alone. Decatur 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 $701,400, Decatur home values are 96% above the DeKalb County median, 312% above Georgia's statewide median of $170,200, 120% above the national median of $318,000.
How does Decatur compare to other DeKalb County cities?
Decatur's median home value is the highest among these DeKalb County cities, which means overassessment costs more here than anywhere else in the county.
What evidence matters for Decatur appeals?
With a population of 24,518, Decatur 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 DeKalb County Property Tax Guide.
How much can you save in Decatur?
Based on a combined tax rate of 4.379%. Your actual rate may vary by tax district. Three-year figures are estimates and apply only if your value is reduced; you can then keep saving for up to three years, subject to the statutory exceptions.
A 10% reduction on the median Decatur home ($701,400 down by $70,140) would save approximately $1,229 per year, or $3,687 over three years (estimated, subject to the statutory exceptions) with the 299c value freeze.
At 6.67% of household income, even a modest reduction in your assessed value makes a real difference in your annual budget.
File your appeal through DeKalb County
Property tax appeals in Decatur are filed with the DeKalb County Board of Assessors. To appeal, submit a PT-311A form. Georgia law sets the appeal deadline at 45 days from the date of your assessment notice. The date printed on your notice controls. Confirm with your county before you file.
DeKalb County Board of Assessors: 120 West Trinity Place, Room 208, Decatur, GA 30030 | 404-371-0841 For the full appeal process and deadline details, see our DeKalb County Property Tax Guide.
Based on 2024 American Community Survey estimates and DeKalb County millage rates.
Frequently Asked Questions
Is my Decatur property tax too high?
The median annual property tax bill in Decatur is $9,295 (Census ACS). If your assessed value is higher than what your home would actually sell for, you are paying more than that. Compare your assessed value to recent sales of comparable homes nearby.
Who do I contact to appeal my Decatur property tax?
Appeals are filed with the DeKalb County Board of Assessors, not at the city level. File a PT-311A form. Georgia law sets the appeal deadline at 45 days from the date of your assessment notice. The date printed on your notice controls. Confirm with your county before you file.
How much of my income goes to property taxes in Decatur?
At the median, Decatur homeowners pay 6.67% of their household income ($139,397/year) in property taxes. That is a significant burden -- a successful appeal directly increases your take-home.
Why are Decatur home values higher than the DeKalb County average?
Decatur's premium reflects demand driven by school quality, proximity to employment centers, and neighborhood amenities. Higher values mean a larger potential overassessment -- a 10% overvaluation costs approximately $1,228 per year in excess taxes.
How do Decatur property taxes compare to Brookhaven?
Decatur's median home value of $701,400 is higher than Brookhaven's $692,700. Higher values mean a larger tax bill and a bigger payoff from a successful appeal.
How is my Decatur property tax bill calculated?
Georgia taxes property at 40% of fair market value. For Decatur's median home ($701,400), the assessed value is $280,560. Multiply by DeKalb County's millage rate of 4.379% to get your annual bill. In growing cities like Decatur, reassessments often outpace actual market conditions -- compare your assessed value per square foot to recent closed sales within 1 mile of your home.
What evidence wins a property tax appeal in Decatur?
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. In Decatur, there are typically enough recent sales to build a strong case. Focus on per-square-foot price comparisons and adjust for differences in lot size, condition, and amenities.
Can my property tax go up if I appeal?
Losing at the Board of Equalization cannot raise your value, with one exception. Under O.C.G.A. § 48-5-311(e)(9), the Board of Equalization, a hearing officer, or an arbitrator can lower your value but cannot raise it above the value the county assessors set. The exception is a value already frozen by an earlier appeal: on an appeal filed while that freeze is in effect, the Board is not capped and could raise the value. That limit applies to the deciding body; the county assessors can still make changes or corrections to your value when they review your appeal.