Complete guide to appealing your Gwinnett County property taxes in 2027. Beat the Gwinnett County Board of Assessors with comparable sales evidence. Covers Lawrenceville, Duluth, Suwanee, Norcross, and all Gwinnett cities.
The Gwinnett County Board of Tax Assessors is responsible for valuing all real property in the county annually. Georgia law requires assessment at 40% of fair market value. So if your home's estimated market value is $350,000, your assessed value should be $140,000, and your property taxes are calculated on that figure. Gwinnett County's mass-appraisal system applies statistical models to broad neighborhood groupings. In a county as geographically and demographically diverse as Gwinnett, these models often fail to capture neighborhood-level nuances — school district boundaries, traffic patterns, HOA quality, and proximity to commercial corridors all affect value in ways the model can't see.
Under O.C.G.A. § 48-5-311, you have exactly 45 days from the date on your Notice of Assessment to file an appeal. Gwinnett County typically mails assessment notices between April and May. The clock starts on the notice date — not when you receive it.
Gwinnett County has been one of metro Atlanta's strongest real estate markets for a decade, driven by excellent schools in the northern portions of the county, strong employment access, and a diverse population that has attracted significant business investment. Values appreciated sharply through 2022 and have since stabilized rather than correcting sharply, unlike some other Atlanta submarkets. However, Gwinnett's diversity of price points — from affordable apartments in Norcross to luxury homes in Suwanee — means assessment errors are common. Homes in transitional neighborhoods are particularly likely to be over-assessed.
A successful Gwinnett County appeal is built on comparable sales evidence — recent sales of homes similar to yours that closed for less than the county's estimated fair market value for your property.
After filing your appeal, the Gwinnett County Board of Tax Assessors reviews your evidence internally. If they offer an acceptable reduction, you can settle at this stage without a formal hearing. If not, your appeal proceeds to the Board of Equalization — a three-member independent panel that holds a formal hearing and issues a binding decision. TaxAppeal prepares letters structured to maximize the chance of a favorable settlement at the initial review stage.
TaxAppeal prepares appeal kits for all Gwinnett County property owners including those in Lawrenceville, Duluth, Suwanee, Norcross, Snellville, Buford, Lilburn, Stone Mountain (Gwinnett portions), Loganville (Gwinnett portions), Auburn, Berkeley Lake, Braselton (Gwinnett portions), Grayson, and all unincorporated Gwinnett County areas.
We check first. If an appeal will lower your bill, we mail you a ready-to-sign kit for $89 flat. You sign it and mail it, and you keep 100% of your savings.
TaxAppeal USA is a self-service document-preparation service. We prepare a ready-to-sign appeal kit and mail it to you; you sign it and mail it to the county yourself. In every state we serve, including Florida, we are not property tax consultants, agents, or representatives, we do not provide tax or legal advice, and we do not file appeals or represent customers before any appraisal district, board of assessors, board of equalization, value adjustment board, or review board. Every appeal, protest and petition is prepared for the property owner, signed by the owner, and mailed by the owner in the owner’s name. In Florida your petition is signed by you as the property owner under section 194.011(3), Florida Statutes, and the county’s Value Adjustment Board filing fee is paid by you directly to the county. TaxAppeal USA does not sign as your representative, does not appear before the Board, and does not present evidence or argument at a hearing.