Georgia's 299c property tax freeze locks your assessed value for three years after a successful appeal. Learn how this automatic protection works, what HB 581 changed in 2025, and how one appeal win can save a typical homeowner over $1,600.
# 299c Property Tax Freeze Georgia: How One Appeal Win Protects Your Value for Three Years
Most Georgia homeowners who win a property tax appeal celebrate the one-year savings and move on. What they don't realize is that a little-known provision in Georgia law — O.C.G.A. § 48-5-299(c) — quietly freezes their assessed value for two additional years after the appeal. That 299c property tax freeze georgia homeowners rarely hear about can triple the financial impact of a single successful challenge.
In a state where 122,174 property tax appeals were filed in 2025 alone and metro Atlanta accounts for 69% of all Georgia appeals, the stakes are real. Yet fewer than 5% of homeowners ever appeal, and even fewer understand what happens after they win.
Here's everything you need to know about how the freeze works, what changed in 2025, and how to make the most of it.
The 299c freeze is a Georgia law that prevents your county from increasing your property's assessed value for two consecutive years after you win an appeal that reduces your value. Count the appeal year itself and you get three full years of protection.
The name comes from the statute's location: O.C.G.A. § 48-5-299, subsection (c). In practice, it means that once a Board of Equalization, hearing officer, arbitrator, or superior court rules in your favor and lowers your property's fair market value, the county assessor cannot push that number back up during the protected period.
Think of it as a shield. You fought to correct your value, and the law says the county has to respect that corrected number — not just for now, but for the next two reassessment cycles too.
The freeze can be triggered by any of these outcomes:
The key requirement: you must actually participate. If you file an appeal but don't show up to the hearing and don't submit written evidence, the freeze won't apply. That matters more than you might think — statewide data shows 17% of appellants fail to appear for their hearings, forfeiting both the appeal and the freeze.
Yes, completely automatic. You do not need to file a separate form, submit an application, or notify anyone. The moment your appeal results in a reduced value, the freeze kicks in by operation of law.
This is one of the most common misconceptions. Unlike Georgia's homestead exemptions, which require an application, the 299c value freeze requires nothing from you after the appeal is decided. Your county tax assessor's office is legally obligated to hold your assessed value steady for the next two years.
There is one trap to watch for, though. If the county assessor sends you an Amended Notice of Assessment (Form PT-306C) during the appeal process offering a revised value, you have exactly 30 days to reject it in writing and continue your appeal. Accept it — or simply ignore it past the 30-day window — and you may lose your right to the full freeze protection. Always read county correspondence carefully during an active appeal.
The freeze effectively multiplies a single year's savings by roughly three — and often more, because it blocks the county from reassessing upward during a rising market.
Let's look at real numbers. In Gwinnett County in 2025, successful appellants saw an average assessed value reduction of $80,029, and the median annual tax savings for DIY filers was $437.
Here's where the freeze transforms the math. Meet the Patel family — a composite based on actual Gwinnett County averages.
The situation: The Patels own a home the county valued at $425,000 fair market value. They appealed and won a reduction to $344,971 — an $80,029 drop matching the Gwinnett average. The effective millage rate in their area is approximately 13.67 mills.
Without the freeze, the Patels save $437 in Year 1 only. The county reassesses in Year 2, likely pushing the value back up to reflect the rising market — and the appeal benefit evaporates.
With the freeze, they save $1,667 over three years. The longer the market rises, the more valuable the freeze becomes, because the gap between your frozen value and what the county would have assessed keeps widening.
That's not tripling. It's closer to quadrupling. And it happens without lifting a finger after the initial appeal.
Yes. House Bill 581, signed into law on April 18, 2024, and approved by Georgia voters in a November 2024 referendum with 63% support, narrowed who qualifies for the freeze starting January 1, 2025. For the full breakdown of how HB 581 changed the 299c freeze — including which local governments opted out — see our dedicated HB 581 analysis. You can also check whether your county, city, or school district opted out using the HB 581 opt-out tracker.
The critical change is small but significant. Before HB 581, the freeze applied when your value was "reduced or is unchanged" after an appeal. Now, the freeze only applies when your value is actually "reduced from the value" the county originally assessed.
What this means practically: if you appeal and the Board of Equalization agrees your current assessment is correct — a "no change" outcome — you no longer get the two-year freeze. You must win an actual reduction.
This matters because a meaningful percentage of appeals historically resulted in the county's original value being upheld, yet homeowners still received freeze protection. That door is now closed.
The takeaway is straightforward: if you're going to appeal, come prepared with evidence that supports a lower value, not just an argument that the current value isn't too high. The difference between "unchanged" and "reduced by even $1" is now the difference between zero freeze protection and three years of locked value.
The freeze locks your assessed value — not your total tax bill. Your property taxes are a function of assessed value multiplied by the millage rate, minus any exemptions. The freeze only controls one of those variables.
Here's what can still change during the freeze period:
Millage rate increases. Your county, school board, and city can all adjust their millage rates annually. Gwinnett County's general fund rate has held steady at 6.950 mills for six consecutive years, and Fulton County's rate has been stable at 8.87 mills since 2022. But there's no guarantee rates stay flat, and a millage increase during your freeze period will raise your bill even though your value is locked.
Exemption changes. If you lose a homestead exemption — say, by converting the property to a rental — your bill will change regardless of the freeze.
Substantial additions or improvements. Build a new deck, add a bedroom, or finish your basement, and the county can adjust your value to reflect the improvement. The statute specifically carves this out under subsection (c)(4)(A).
Errors in property records. If the county discovers that your property records contain factual mistakes — wrong square footage, missing structures — they can correct the assessment. This falls under subsection (c)(4)(B).
Filing a new appeal. Here's a counterintuitive one: if you file another appeal while your freeze is active, you break the freeze. You might get a new, lower value and start a fresh freeze — but you're rolling the dice. Under subsection (c)(3), filing a new return or appeal during the protected period ends the existing freeze.
Property sale. The freeze is attached to the appeal outcome, not the property in perpetuity. If you sell, the new owner does not inherit your freeze.
Georgia counties reassess properties on regular cycles, and the freeze effectively overrides that reassessment pressure during the protected period.
Gwinnett County conducts annual reassessments, and in 2023, assessed values jumped 15.6% countywide — while actual home sales prices rose less than 1%. That kind of aggressive reassessment is exactly what the freeze defends against. If you had won an appeal in 2022, your value would have been locked while your neighbors absorbed that 15.6% spike.
Fulton County similarly reassesses regularly, and with total millage rates in the City of Atlanta exceeding 40 mills, even small value increases translate to meaningful tax jumps.
During the freeze, your county will still reassess properties around you. They'll track what the market is doing. They just can't apply any increases to your property until the freeze expires. Your value sits in a protective bubble while everything around it adjusts.
This is why the freeze is especially valuable in fast-appreciating markets. The faster values rise around you, the larger the gap between your frozen assessment and what you'd otherwise be paying.
When the two-year protection period ends, your county can reassess your property under normal rules — and they almost certainly will.
If the local market has been rising during your freeze years, expect the county to adjust your value to reflect current market conditions. This can feel like a sudden jump, but it's really just the county catching up to where they would have assessed you all along.
Using the Patel family example: after three years at a frozen value of $344,971, the county might reassess at $400,000 or higher based on market conditions. That's a noticeable increase in one year, but remember — you avoided paying taxes on that higher value for three full years.
You have a few options as the freeze expiration approaches:
Review your new assessment carefully. When you receive your Annual Notice of Assessment, check whether the new value is supported by recent comparable sales. Counties sometimes overshoot after a freeze period, knowing they've been unable to adjust for years.
Appeal again if warranted. If the post-freeze reassessment seems inflated, you have every right to file a new appeal within 45 days of the notice date. A successful appeal would start a fresh 299c freeze — another three years of protection. In Gwinnett County, 2025 notices were mailed May 23 with a July 7 deadline. Fulton County notices went out June 17 with an August 1 deadline.
File using Form PT-311A. The official appeal form is PT-311A, though Georgia law accepts any written appeal submitted within the 45-day window. The form just makes it cleaner.
A winning appeal strategy in Georgia can become a repeating cycle: appeal, win, freeze for three years, reassess, appeal again if the new number is too high. Each successful round resets the clock.
You can, but understand the trade-off. Filing a new appeal during the freeze period terminates your existing freeze under subsection (c)(3).
This only makes sense if you believe the current market value of your home has dropped significantly below your frozen assessed value — say, due to a neighborhood decline or property damage. In that scenario, you'd want a lower baseline, and a new successful appeal would start a fresh three-year freeze at that lower number.
If the market is flat or rising, there's rarely a reason to appeal during the freeze. Your frozen value is already below what the county would otherwise assess, so you're already winning.
The 299c property tax freeze turns a single appeal victory into three years of savings. With HB 581 tightening the rules, the distinction between winning a reduction and merely confirming your value matters more than ever.
Georgia homeowners sitting on assessments that don't reflect reality have a clear incentive to act — and the data backs it up. Over 80% of Gwinnett County appellants who showed up won reductions in 2025. The 17% who didn't show up got nothing.
Whether you've just won an appeal and want to understand your freeze, or you're weighing whether to file for the first time, the math is hard to argue with: one effort, three years of protection, and savings that compound as the market rises around your locked-in value.