Lower Your Gwinnett County Property Taxes

AppealAlly helps Gwinnett County homeowners challenge unfair property tax assessments with a fully prepared evidence packet, comparable sales pulled from county records, and a pre-filled PT-311A appeal form. Homeowners save an average of $492 per year on property taxes after a successful appeal, which adds up to roughly $1,476 over three years when the Georgia 299(c) freeze applies. Get a free Gwinnett savings estimate in about one minute with no commitment.

Why Gwinnett appeals are time sensitive: Gwinnett County mailed its 2026 annual Notices of Assessment on May 15, 2026, which sets a filing deadline of June 29, 2026. You have 45 days from the date printed on your notice to file an appeal with the Gwinnett County Board of Tax Assessors. The clock starts the day the notice was mailed, not the day you received it. Miss it and your assessment stands for the year. AppealAlly tracks Gwinnett deadlines automatically and pre-fills the PT-311A so you can file before the 45-day window closes.

Source: Gwinnett County Tax Assessor; O.C.G.A. section 48-5-311(e)(2)(A). Results may vary. The $492/year figure reflects average first-year savings reported by AppealAlly customers with successful appeals.

Why Appeal in Gwinnett County

• High reduction rate. Based on 20,229 Gwinnett County appeals from the 2025 tax year, 82.2% of appeals that reached a decision reduced the homeowner’s assessed value (source: Gwinnett County Board of Assessors FOIA release).
• Three-year freeze. Under O.C.G.A. section 48-5-299(c), when a Board of Equalization, hearing officer, arbitrator, or Superior Court reduces your value through a formal appeal, Gwinnett cannot raise that value for the appeal year plus the next two successive years.
• No risk if you lose. Filing an appeal cannot raise your assessment. If you don’t win a reduction, your existing value stands. HB 581 (effective January 1, 2025) only attaches the 3-year freeze when an appeal produces an actual reduction, so there’s no penalty for trying.
• No filing fee. Filing the PT-311A with the Gwinnett County Board of Tax Assessors is free at every stage of the appeal, including the Board of Equalization hearing.

How AppealAlly Works for Gwinnett Homeowners

1. Enter your Gwinnett address. We look up your property details, current assessed value, and exact 45-day appeal deadline from county records.
2. Review your savings estimate. Our algorithm pulls recent comparable sales in your Gwinnett neighborhood, identifies the strongest comps, and projects your potential year-one and three-year savings.
3. Pick a plan and file. Choose the Essentials DIY Kit ($79) for a complete evidence packet you mail yourself, or Full-Service Appeal (30% of first-year savings, $0 upfront) where our team handles filing and the Board of Equalization hearing.

Start your free Gwinnett property tax analysis now

Pricing for Gwinnett County Appeals

AppealAlly offers two appeal plans in Gwinnett, with statewide pricing that does not change based on your county.

• Essentials DIY Kit: $79 flat. Complete appeal packet with the pre-filled PT-311A, 3 to 5 comparable sales with plain-language analysis, an evidence grid, a map of comps, and a step-by-step Gwinnett filing guide. Backed by a 100% money-back guarantee if Gwinnett does not reduce your assessed value.
• Full-Service Appeal: 30% of first-year savings, $0 upfront. Our team files your PT-311A, monitors the deadline, attends the Gwinnett Board of Equalization hearing on your behalf, and only charges if your assessment is reduced. A $25 add-on applies only when your appeal secures the 299(c) three-year freeze.

See full plan details at our pricing page or jump directly to pricing on this page.

Gwinnett County Property Tax Resources

• Gwinnett County Property Tax Appeal Guide. The complete walkthrough of the Gwinnett appeal process, deadlines, and evidence requirements.
• Georgia Property Tax Appeal Statistics. Breakdown of the 20,229 Gwinnett appeals from the 2025 tax year, including win rates and median reductions.
• How to File the PT-311A. Plain-language guide to the statewide property tax appeal form used in Gwinnett.
• Free Gwinnett Savings Estimate. Personalized estimate based on your specific property in about one minute.

Frequently Asked Questions

When are 2026 Gwinnett County assessment notices mailed?

Gwinnett County mailed its 2026 annual Notices of Assessment on May 15, 2026, which sets a filing deadline of June 29, 2026. Your 45-day appeal window runs from the notice date printed in the upper right corner, so confirm that date before you file.

When is the deadline to appeal my Gwinnett property taxes?

You have 45 days from the date Gwinnett County mailed your annual Notice of Assessment to file an appeal. For 2026, the county mailed notices on May 15, which sets a filing deadline of June 29, 2026. The clock starts the day the notice was mailed (printed in the upper right corner), not the day you opened the envelope. Miss it and you wait until next year's notice. The deadline cannot be extended for any reason.

Will my property taxes go up if I lose the appeal?

No. Under Georgia's "299(c) freeze" (O.C.G.A. § 48-5-299(c)), once a Board of Equalization, hearing officer, arbitrator, or Superior Court reduces your value through a formal appeal, the new value is locked for the appeal year and the next two successive years. If you do not win a reduction, your existing value stands. Gwinnett County cannot use an appeal as an excuse to raise your assessment.

How much does it cost to appeal property taxes in Gwinnett?

Filing the PT-311A with the Gwinnett County Board of Tax Assessors is free. There is no filing fee at the Board of Equalization stage. AppealAlly offers two pricing tiers: DIY Essentials at $79 flat (you get the comparable-sales packet and file yourself) or Full-Service Appeal at 30% of first-year savings only if we win.

What is the 3-year property tax freeze in Georgia?

When a Board of Equalization, hearing officer, arbitrator, or Superior Court reduces your home's value through a formal appeal, Gwinnett County cannot raise that value for three tax years (the year you appealed plus the next two successive years). House Bill 581, effective January 1, 2025, narrowed eligibility so the freeze only attaches when the appeal produces an actual reduction.

What evidence do I need to win a Gwinnett property tax appeal?

Three to five comparable sales of similar homes in your Gwinnett neighborhood (same area, similar size, age, condition) that closed in the 12 months before January 1 of the assessment year. The Gwinnett Board of Equalization weights closed sales heaviest. AppealAlly's evidence packets are built from county sale records and assessor data.