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.
McDonough's courthouse square, ringed by storefronts, still anchors the Henry County seat the way it has since the 1800s, but everything around the square has transformed. Decades of I-75 corridor growth turned McDonough from a farm town into a city of nearly 31,000, and its housing market now sits almost exactly at the center of the county's: the typical home here is worth about $314,600, essentially matching the Henry County median of $313,900. For the middle half of Henry County homes, values fall between roughly $227,073 and $398,232, and rapid growth is what strains mass appraisal most. When subdivisions are built, sold, and resold in waves, the county's models chase a moving target, and homes in older McDonough neighborhoods can get swept up in valuation increases driven by new construction they have little in common with. The result shows up in the burden numbers: Henry's effective property tax rate stands at about 1.35 percent, and with McDonough's median household income at $75,343, the typical homeowner puts nearly 4 percent of income toward property taxes, among the heavier loads on Atlanta's southside. A valuation error on top of that sticks with you every year it goes unchallenged. The assessor is estimating at scale and under pressure, and whether the estimate fits your particular house is a question only recent comparable sales can answer. If the sales say your value is too high, you can appeal. 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.
McDonough Appeal Quick Facts
The median home in McDonough is valued at $314,600, and the typical homeowner pays about $2,973 per year in property tax (Census ACS 2024), based on Henry County's 3.368% combined millage applied to 40% of fair market value after exemptions. 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. Filing is free, and 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. 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.
Check If Your McDonough Home Is Overassessed
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.
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.
Based on a combined tax rate of 3.368%. 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 McDonough home ($314,600 down by $31,460) would save approximately $424 per year, or $1,272 over three years (estimated, subject to the statutory exceptions) 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.
Property tax appeals in McDonough are filed with the Henry 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.
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.