Kennesaw, GA: Is Your Property Tax Assessment Too High? (2026)
The median Kennesaw homeowner pays $2,630/year in property taxes. That is 3.16% of median household income. See how Kennesaw compares and check your savings potential.
Key Takeaways
Appeal deadline: 45 days from your assessment notice date - strictly enforced.Median home value: $335,400 in Kennesaw.Median annual tax bill: $2,630.Tax burden: 3.16% of median household income in Kennesaw.Potential savings: ~$404/year from a 10% reduction, or $1,212 over 3 years with the 299c freeze.Filed with: Cobb County Board of Assessors (not the city).No risk: Georgia law guarantees your assessment cannot increase from filing an appeal.
Kennesaw is one of Cobb County's larger cities, with about 34,600 residents and home values that come in around 18% below the county's $407,000 median. That gap means your assessment should reflect Kennesaw's market specifically -- and if it's pulling toward Cobb's pricier areas, you have grounds to appeal.
Kennesaw Appeal Quick Facts
Appeal Deadline: 45 days from the date of the assessment notice
Median Home Value: $335,400 (-18% below Cobb County median)
Estimated Annual Tax Bill: $2,630
Tax Burden: 3.16% of median household income
Is your Kennesaw property tax assessment too high?
The median home in Kennesaw is valued at $335,400, producing an estimated annual tax bill of $4,044 at Cobb County's 3.015% combined rate. That means the typical Kennesaw homeowner spends 3.16% of household income on property taxes alone. Even though Kennesaw home values fall below the Cobb County average, the tax burden here is significant relative to household income. A lower home value does not mean your assessment is automatically correct. Overassessments happen at every price point, and correcting one can meaningfully reduce your annual bill. At $335,400, Kennesaw home values are 18% below the Cobb County median, 97% above Georgia's statewide median of $170,200, 5% above the national median of $318,000.
How does Kennesaw compare to other Cobb County cities?
Smyrna leads Cobb County in home values, but your individual assessment could still be too high regardless of where Kennesaw falls in the county ranking.
What evidence matters for Kennesaw appeals?
With a population of 34,605, Kennesaw 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 Cobb County Property Tax Guide.
How much can you save in Kennesaw?
Based on a combined tax rate of 3.015%. Your actual rate may vary by tax district.
A 10% reduction on the median Kennesaw home ($335,400 down by $33,540) would save approximately $404 per year, or $1,212 over three years with the 299c value freeze.
At 3.16% of household income, even a modest reduction in your assessed value makes a real difference in your annual budget.
File your appeal through Cobb County
Property tax appeals in Kennesaw are filed with the Cobb County Board of Assessors. You have 45 days from the date of your assessment notice to submit a PT-311A form.
Cobb County Board of Assessors: 736 Whitlock Avenue, Suite 200, Marietta, GA 30064 | 770-528-3100 For the full appeal process and deadline details, see our Cobb County Property Tax Guide.
Based on 2024 American Community Survey estimates and Cobb County millage rates.
Frequently Asked Questions
Is my Kennesaw property tax too high?
The median annual property tax bill in Kennesaw is $2,630. Using Cobb County's millage rate of 3.015%, the computed tax on the median home ($335,400) is approximately $4,044. If your assessed value is higher than what your home would actually sell for, you are overpaying.
Who do I contact to appeal my Kennesaw property tax?
Appeals are filed with the Cobb County Board of Assessors, not at the city level. File a PT-311A form within 45 days of your assessment notice.
How much of my income goes to property taxes in Kennesaw?
At the median, Kennesaw homeowners pay 3.16% of their household income ($83,356/year) in property taxes. That is a significant burden -- a successful appeal directly increases your take-home.
Are Kennesaw homes undervalued compared to Cobb County?
Kennesaw's lower median does not mean the county's assessment of your specific home is correct. Overassessments happen at every price point. Compare your assessed value per square foot to actual recent sales of similar homes nearby.
How do Kennesaw property taxes compare to Smyrna?
Smyrna leads Cobb County with a median home value of $449,500, compared to Kennesaw's $335,400. But a lower county ranking does not mean your individual home is correctly assessed -- overassessments happen at every price point.
How is my Kennesaw property tax bill calculated?
Georgia taxes property at 40% of fair market value. For Kennesaw's median home ($335,400), the assessed value is $134,160. Multiply by Cobb County's millage rate of 3.015% to get your annual bill. In growing cities like Kennesaw, 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 Kennesaw?
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 Kennesaw, 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?
No. Georgia law (O.C.G.A. § 48-5-311) protects you: the county cannot raise your assessed value above what they originally set just because you filed an appeal. The Board of Equalization only rules on the disputed value. Worst case, your appeal is denied and you keep your current assessment -- your taxes will not increase as a result of appealing.