McDonough, GA: Is Your Property Tax Assessment Too High? (2026)
The median McDonough homeowner pays $2,973/year in property taxes. That is 3.95% of median household income. See how McDonough compares and check your savings potential.
Key Takeaways
Appeal deadline: 45 days from your assessment notice date - strictly enforced.Median home value: $314,600 in McDonough.Median annual tax bill: $2,973.Tax burden: 3.95% of median household income in McDonough.Potential savings: ~$423/year from a 10% reduction, or $1,269 over 3 years with the 299c freeze.Filed with: Henry County Board of Assessors (not the city).No risk: Georgia law guarantees your assessment cannot increase from filing an appeal.
McDonough is the Henry County seat and one of the county's fastest-growing cities, with about 31,000 residents and home values that track almost exactly at the county median. Growth-driven reassessments can overshoot actual market conditions -- this guide helps you check whether yours did.
McDonough Appeal Quick Facts
Appeal Deadline: 45 days from the date of the assessment notice
Median Home Value: $314,600 (0% above Henry County median)
Estimated Annual Tax Bill: $2,973
Tax Burden: 3.95% of median household income
Is your McDonough property tax assessment too high?
The median home in McDonough is valued at $314,600, producing an estimated annual tax bill of $4,238 at Henry County's 3.368% combined rate. That means the typical McDonough homeowner spends 3.95% of household income on property taxes alone. If Henry County has overestimated your home's fair market value, you are paying more than you should. Georgia law guarantees that filing an appeal cannot increase your assessment, so there is no risk in checking. At $314,600, McDonough home values are 0% above the Henry County median, 84% above Georgia's statewide median of $170,200, 1% below the national median of $318,000.
How does McDonough compare to other Henry County cities?
Heron Bay leads Henry County in home values, but your individual assessment could still be too high regardless of where McDonough falls in the county ranking.
What evidence matters for McDonough appeals?
With a population of 30,947, McDonough 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 Henry County Property Tax Guide.
How much can you save in McDonough?
Based on a combined tax rate of 3.368%. Your actual rate may vary by tax district.
A 10% reduction on the median McDonough home ($314,600 down by $31,460) would save approximately $424 per year, or $1,272 over three years with the 299c value freeze.
At 3.95% of household income, even a modest reduction in your assessed value makes a real difference in your annual budget.
File your appeal through Henry County
Property tax appeals in McDonough are filed with the Henry County Board of Assessors. You have 45 days from the date of your assessment notice to submit a PT-311A form.
Henry County Board of Assessors: 140 Henry Parkway, McDonough, GA 30253 | 770-288-7999 For the full appeal process and deadline details, see our Henry County Property Tax Guide.
Based on 2024 American Community Survey estimates and Henry County millage rates.
Frequently Asked Questions
Is my McDonough property tax too high?
The median annual property tax bill in McDonough is $2,973. Using Henry County's millage rate of 3.368%, the computed tax on the median home ($314,600) is approximately $4,238. If your assessed value is higher than what your home would actually sell for, you are overpaying.
Who do I contact to appeal my McDonough property tax?
Appeals are filed with the Henry 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 McDonough?
At the median, McDonough homeowners pay 3.95% of their household income ($75,343/year) in property taxes. That is a significant burden -- a successful appeal directly increases your take-home.
How do McDonough property taxes compare to Heron Bay?
Heron Bay leads Henry County with a median home value of $393,000, compared to McDonough's $314,600. But a lower county ranking does not mean your individual home is correctly assessed -- overassessments happen at every price point.
How is my McDonough property tax bill calculated?
Georgia taxes property at 40% of fair market value. For McDonough's median home ($314,600), the assessed value is $125,840. Multiply by Henry County's millage rate of 3.368% to get your annual bill. In growing cities like McDonough, 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 McDonough?
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 McDonough, 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.