Henry County Property Tax Appeal

The 45-day appeal window starts on the date printed on your assessment notice — not the postmark, not the day the envelope arrives in your mailbox. Henry County's schedule is reported rather than officially confirmed through county filings, so treat the date on your notice as the legally controlling date, not any countywide figure published elsewhere, including the band at the top of this page.

Georgia offers no administrative extensions. If you miss the window, your appeal right for this cycle is gone, and the only reset comes with next year's notice. Waiting to see whether the value seems fair costs exactly the same deadline as ignoring it.

Georgia law (O.C.G.A. § 48-5-7) sets the assessment ratio at 40% of fair market value. The bill you actually pay is that assessed figure multiplied by the local millage rate. For a Henry County home appraised at $320,000, the taxable base is $128,000. If comparable sales in your neighborhood support a value of $290,000, you've removed $30,000 of appraised value — which cuts $12,000 from the taxable base. At Henry County's combined millage rate, that difference shows up on every bill until the next reassessment. Under Georgia's 299(c) provision, a resolved appeal also typically freezes the assessed value for the following two years. One set of organized paperwork can protect you for three assessment cycles. See the Georgia property tax appeal overview for statewide context on how the 40% ratio applies across counties.

Henry County appeals route to the Board of Equalization — a panel of trained community members, not assessor staff — and they reward preparation over frustration. Three categories of evidence carry the room:

• Comparable sales. Three to five homes near yours, similar in size and age, that sold for less than your appraised value before the assessment date. This is the backbone of nearly every successful residential appeal.
• Property record errors. Pull your record card and confirm square footage, bedroom and bathroom counts, basement finish status, and lot size. Errors of a few hundred square feet appear more often than homeowners expect, and a documented error is the cleanest win available.
• Condition documentation. Photos and contractor estimates for anything a county mass-appraisal model cannot see — a failing foundation, long-term storm damage, a condemned outbuilding. The model prices your home as if it matches the neighborhood average; condition evidence directly undermines that assumption.

Organize everything on one or two pages. A board member reviewing a morning's worth of appeals responds to clarity, not volume.

Henry County has no online submission path. Your two options are mailing a completed PT-311A to the Board of Tax Assessors at 140 Henry Pkwy, McDonough GA 30253, or delivering it in person at the same address during business hours. The form is available from the Georgia Department of Revenue. If you mail it, use certified mail with return receipt — the USPS postmark is your legal proof of timely filing, and you want documentation in case it's ever questioned.

After you file, the Board of Assessors reviews first and may send a revised value. Accept it and the process is over. Decline and your case advances to a Board of Equalization hearing — typically a 15-minute session where you walk through your comparable sales and any record errors. Arbitration and a hearing officer are also available at filing time, but for a standard residential appeal the BOE path is free and well-suited to the task. A BOE ruling can be escalated to Superior Court, though for most homeowners the value freeze from even a partial win is the sensible stopping point.

Four wrinkles appear regularly. First, Henry County is a paper county — there is no last-minute digital submission. If you are mailing your PT-311A, allow several business days for delivery and do not underestimate your deadline. Second, the assessment notice is not a tax bill. It shows the value you have the right to fight; the actual bill comes later, when the appeal window has already closed. Act on the notice when it arrives.

Third, homestead exemptions are a separate application with their own spring filing deadline. A successful appeal does not apply or restore exemptions retroactively — if you have not confirmed your homestead status, check it while you are gathering appeal materials. The Georgia property tax overview covers which exemptions are available statewide and how to apply. Fourth, if your neighborhood was swept in a countywide reassessment, do not assume the increase is airtight. Mass-appraisal models smooth over street-level differences — the exact condition issues and micro-location factors the BOE exists to hear. If you own property across county lines, Barrow County and Bartow County run on the same 45-day Georgia framework, so the same preparation applies.