Gwinnett County Property Tax Appeal Guide

Appeal Gwinnett County assessments within 45 days of your notice. PT-311A filing, BOE hearing tips, and comparable sales evidence from Protestly.

Gwinnett County Board of Tax Assessors values Lawrenceville, Duluth, Buford, and fast-growing subdivisions. Notices show fair market value — appeal within 45 days with PT-311A when comps are lower.

Gwinnett’s 2020s build boom means new construction and 1990s resales must stay in separate comp pools for credible BOE evidence.

When is the Gwinnett County property tax appeal deadline for 2026?

45 days from Annual Notice of Assessment date.

Georgia law generally gives you 45 days from the date of your Annual Notice of Assessment to file an appeal with the Board of Tax Assessors.

If you disagree after the assessors review your appeal, you may continue to a hearing before the Board of Equalization (BOE).

Who do I file a Gwinnett County appeal with?

File your Gwinnett County appeal with Gwinnett Board of Tax Assessors. Online records and appeals.

Gwinnett Board of Tax Assessors

Online records and appeals

How do I appeal property taxes in Gwinnett County?

Verify sketch and homestead on the assessor portal.

Pull Gwinnett assessment online

Verify sketch and homestead on the assessor portal.

File PT-311A within 45 days

Submit proposed value and grounds to the Board of Tax Assessors.

Prepare BOE evidence

Use subdivision-level comps in Peachtree Corners, Suwanee, or Dacula as appropriate.

Attend BOE if needed

Present concise comp grid and value conclusion.

What form do I file for a Gwinnett Board of Tax Assessors appeal?

PT-311A (Appeal of Assessment): Gwinnett appeal filing.

PT-311A — Appeal of Assessment

Gwinnett appeal filing.

What happens at a Gwinnett County BOE hearing?

Gwinnett panels see heavy suburban volume — hyper-local comps outperform countywide statistics.

BOE

Gwinnett panels see heavy suburban volume — hyper-local comps outperform countywide statistics.

What evidence does Gwinnett Board of Tax Assessors / the BOE actually use?

Subdivision comps.

Subdivision comps.

Equity among similar homes.

New vs. resale separation.

FAQ

Gwinnett deadline?

45 days from notice date.

Online filing?

Check gwinnettassessor.manatron.com for current PT-311A submission.

School district comps?

Match comps within the same school cluster when possible.

Protestly?

Yes.

40% ratio?

Assessed value is 40% of fair market value — argue market value first.