If you believe the Gwinnett County Board of Assessors has overvalued your property, Georgia law gives you the right to appeal. The appeal process is time-sensitive — you have 45 days from the date on your assessment notice — so it is important to act quickly and understand the steps.
Key Points
- •You have 45 days from the date on your assessment notice to file an appeal (O.C.G.A. § 48-5-311).
- •Check for factual errors first — simple mistakes can be corrected without a formal appeal.
- •Comparable sales, a professional appraisal, and photos of condition issues are your strongest evidence.
- •Three appeal paths: Board of Assessors review, Board of Equalization hearing, or binding arbitration.
- •A successful appeal reduces your assessed value, which carries forward to future years.
The 45-Day Deadline
Under Georgia law (O.C.G.A. § 48-5-311), you have 45 days from the date of your assessment notice to file an appeal. This deadline is strict — if you miss it, the assessed value becomes final for the year and cannot be changed through the appeal process.
Mark the date on your calendar the day you receive your notice. Do not wait until the last week.
Step 1: Review Your Assessment Notice
Before appealing, carefully review the notice for factual errors:
- Is the square footage correct?
- Is the lot size accurate?
- Does the condition rating match your property?
- Are there features listed that your property does not have (a finished basement, extra bathroom, etc.)?
Simple factual errors can sometimes be corrected by contacting the Board of Assessors directly, without a formal appeal.
Step 2: Gather Evidence
To support your appeal, collect evidence that your property's fair market value is lower than the assessor's estimate:
- Recent comparable sales — sales of similar homes in your neighborhood, ideally within the same year. The closer the comparables (same subdivision, similar size, similar condition), the stronger your case.
- Appraisal — a professional appraisal from a licensed Georgia appraiser carries significant weight.
- Photos — document any condition issues (foundation cracks, roof damage, outdated interiors) that might lower value.
- Repair estimates — if your property needs significant repairs, written estimates from contractors can support a lower value.
Step 3: File the Appeal
File your appeal with the Gwinnett County Board of Assessors. The appeal must be in writing and must include:
- Your name and contact information
- The parcel number and property address
- The value you believe is correct
- The basis for your appeal (sales comparison, appraisal, factual error, etc.)
You can typically file online through the Board of Assessors website.
Step 4: Choose Your Appeal Path
Georgia law offers three appeal options:
- Board of Assessors review — the Board reconsiders the value. This is the fastest option and often resolves the majority of appeals.
- Board of Equalization (BOE) hearing — a panel of Gwinnett County property owners hears your case and issues a binding decision. Both you and the Board of Assessors can present evidence.
- Binding arbitration — a neutral arbitrator hears the case. This option may involve costs but can be faster than a BOE hearing.
You also choose which values to appeal — fair market value, uniformity (whether your property is assessed consistently with similar properties), or both.
Step 5: The Outcome
If your appeal is successful, your assessed value is reduced, and your tax bill will reflect the lower value. The new value typically carries forward to future years unless market conditions change significantly or the property is improved.
If your appeal is denied, you can escalate to superior court, though this is rare and usually only worthwhile for high-value commercial properties.
Do You Need an Attorney or Tax Consultant?
Most residential appeals can be handled by the homeowner. For high-value properties or complex commercial appeals, a Georgia property tax attorney or consultant may be worth the cost. Some work on contingency — they take a percentage of the first year's tax savings.
Why It Matters to Gwinnett Residents
Property values in Gwinnett have risen sharply, and assessments don't always keep up with individual property conditions. Filing an appeal is the single most effective way a homeowner can lower their property tax bill — but only if they act within the 45-day window.




