Gwinnett County mailed approximately 311,000 annual notices for 2026 and directs an owner who disputes appraised value, uniformity, taxability, or an exemption matter to file within 45 days of the date at the top of the notice. The notice is not a tax bill. Gwinnett accepts completed online submissions, mail, and hand delivery, but expressly does not accept appeals by email or fax. An online draft must be submitted before 11:59 p.m. Eastern on the notice deadline. FairPath can provide a manual workspace for organizing the notice, county record, comparisons, condition documentation, and official links. The owner decides the ground and files directly with the Assessors' Office.
Assessment context: Gwinnett's notice shows prior and 2026 appraised values, exemptions, preferential assessments, or credits used later in tax calculations. Verify the parcel and physical characteristics through the official assessor and GIS resources before interpreting a change. The county includes mature neighborhoods around Norcross and Lilburn, large subdivision markets, and newer development toward the northeast; sale location, school context, construction era, renovation, and lot characteristics can therefore matter. ACS 2024 five-year data reports a $380,900 median owner-occupied value and about 59 percent of housing built before 2000. Those aggregate measures are useful market context only. They cannot establish a parcel's fair market value, tax savings, or likelihood of success.
Filing process: Gwinnett accepts a PT-311A or a letter of disagreement that identifies the property by parcel number or address, provided it is timely. The approved channels are the Assessors' Office online portal, mail, or in-person delivery. Email and fax are not accepted. Mailed appeals should use tracking and must be postmarked within the 45-day period; Gwinnett warns that ordinary drop-off mail may not receive a postmark unless requested. Online submissions must be completed by 11:59 p.m. Eastern on the notice deadline, and an unfinished draft receives no extension. Keep the submitted form, supporting files, confirmation, and delivery evidence. A property-tax return filed earlier is not itself an appeal of the annual notice.
Evidence to review: Gwinnett identifies value, taxability, and uniformity as grounds. For value, organize verified arm's-length sales and explain differences in date, neighborhood, living area, age, construction, lot, features, and condition. For uniformity, use assessments of truly similar properties and retain the county source. An owner may also document record errors or January 1 condition with dated photographs, inspections, repair estimates, insurance records, permits, or contractor scopes. Label each exhibit with the fact it supports instead of sending an unexplained document stack. A certified appraisal and filing fee have special relevance if arbitration is elected, while a Board of Equalization hearing has different procedures. FairPath does not select a route, determine a value, or file the appeal.
Current deadline guidance: 45 days from the date on the 2026 Annual Notice of Assessment. A Gwinnett annual assessment appeal must be completed no later than 11:59 p.m. Eastern on the deadline shown on the notice, within Georgia's 45-day period. Starting an online filing without submitting it does not preserve the appeal.
Gwinnett's written policy adopted in October 2025 makes clear that email and fax are not filing methods. A message to county staff or an attachment sent by email does not replace the portal, mail, or hand-delivery process.
The 2026 notices advise owners to evaluate property facts and exemptions as of January 1, 2026. Condition documents should therefore identify when the issue existed, not merely show repairs or damage discovered much later.
Gwinnett accepts a sufficiently identifying letter of disagreement, but additional reasons and property information can assist review. A concise exhibit index connecting each document to value, uniformity, taxability, or exemption is easier to inspect.
A tax bill may issue before an appeal is finalized. The open appeal and tax-payment process should be tracked separately, using current county instructions, so the existence of one is not mistaken for suspension of the other.
Official filing authority: Gwinnett County Board of Tax Assessors. https://www.gwinnettcounty.com/government/departments/county-administrator/assessor/property-appeals
Source: Gwinnett County Government, Property Appeals, https://www.gwinnettcounty.com/government/departments/county-administrator/assessor/property-appeals. Reviewed 2026-07-15.
Source: Gwinnett County Government, Board of Assessors Public Notices, https://www.gwinnettcounty.com/government/departments/county-administrator/assessor/public-notices. Reviewed 2026-07-15.
Source: Gwinnett County Government, 2026 Notices of Assessment Mailing, https://www.gwinnettcounty.com/-/news-events/stories/story-details/board-of-assessors-mail-notices-for-2026-assessed-property-values. Reviewed 2026-07-15.
Source: Georgia Department of Revenue, PT-311A Appeal of Assessment Form, https://dor.georgia.gov/pt-311a-appeal-assessment-form. Reviewed 2026-07-15.