If you receive a Gwinnett County Annual Notice of Assessment and believe the property value is wrong, you have the right to appeal.
The first thing to check is the deadline.
You generally have 45 days
Gwinnett County says an appeal must be filed within 45 days of the date shown on the Annual Notice of Assessment.
The exact deadline appears on the notice. Missing that date can cost you the opportunity to challenge that year’s assessment, so do not assume the deadline is the same every year.
What can you appeal?
The county lists three common grounds:
Value: Would the property actually sell for the appraised amount?
Taxability: Should the property be taxable?
Uniformity: Is the property being valued consistently with similar properties?
Property owners may also appeal certain exemption decisions.
How do you file?
Gwinnett County allows property appeals to be filed online, by mail, or in person.
The county recommends online filing because it provides a direct way to submit the appeal before the deadline.
The Board of Assessors does not accept property appeals by email or fax.
There is no fee to file an appeal directly with the Gwinnett County Assessors’ Office.
What information should you gather?
You do not need to hire a company simply to file an appeal.
Useful evidence can include recent sales of comparable homes, information showing an error in the county’s property record, photographs documenting condition, or other facts that help explain why the appraised value may not reflect the property.
Gwinnett’s Property Information Search also provides neighborhood sales information and tools for researching comparable properties.
What happens next?
After the appeal is received, appraisal staff reviews it. The county may issue an amended notice if staff changes the value.
If the dispute is not resolved at that stage, the appeal can continue through the applicable appeal process.
The important distinction is that the Annual Notice of Assessment is not the tax bill. It establishes the value and appeal rights that will later feed into the tax calculation.
If you disagree with the value, the assessment period is the time to act.