If you believe your property tax assessment in Gwinnett County, Georgia is inaccurate, filing an appeal is your legal right—and a smart financial move. Fortunately, Gwinnett County allows taxpayers to submit their appeal either online or by mail. Each method has its pros and cons related to convenience, reliability, and documentation.
This guide breaks down the advantages and disadvantages of both methods, helping you decide which filing method best fits your needs and ensures your appeal is submitted accurately and on time.
💻 Filing Online
✅ Pros
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Convenience: File from anywhere with internet access—24/7—until the deadline.
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Speed and Efficiency: Online submissions are processed immediately.
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Instant Confirmation: You typically receive a submission receipt or confirmation number for your records.
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Easy Document Uploads: Attach comparable sales data, photos, or reports directly through the portal.
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No Postal Delays: Avoid issues related to mail delays, especially close to the 45-day deadline.
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Error-Prevention Tools: The online system often flags missing fields and incomplete entries.
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Mobile-Friendly: The portal can be accessed via desktop, tablet, or smartphone.
❌ Cons
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Website Glitches: Rare, but possible issues with site access or uploads.
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Tech Comfort: Some users may find online forms confusing or unfamiliar.
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Last-Minute Crowding: Potential for system lag if many users file close to the deadline.
✉️ Filing by Mail
✅ Pros
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Physical Proof: Keep a hard copy of your appeal and a USPS certified mail receipt as proof of timely submission.
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No Tech Needed: Ideal if you're not comfortable using computers or lack internet access.
❌ Cons
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Slower Delivery: Risk of mail delays, especially as deadlines approach.
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No Instant Confirmation: You won’t know it was received unless you use certified or trackable mail.
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Risk of Loss: Though uncommon, mail can get lost or misrouted.
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Manual Documentation: You’ll need to print, organize, and mail supporting evidence.
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Deadline Warning: Appeals must be postmarked (not just mailed) by the 45th day after the notice date.
❓ Which Option is Best for You?
For most property owners, filing online is the recommended option because of its:
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Speed
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Simplicity
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Instant confirmation
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Reliable upload process for documentation
Filing by mail may be preferable if:
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You're uncomfortable with computers or online systems
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You prefer a physical paper trail
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You plan ahead and can ensure mailing early with proof of delivery
⚠️ Key Reminders
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Don’t Miss the Deadline: Your appeal must be filed online or postmarked within 45 days of the date on your Notice of Assessment (not the day you received it).
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Follow Instructions: Use Gwinnett County's official forms and guidance for either method.
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Keep Copies: Save a copy of everything you submit—screenshots or PDFs for online, and photocopies and receipts for mail.
📚 Resources – Gwinnett County Property Tax Appeals
🏛️ Gwinnett County Tax Assessor’s Office
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Appeals Info & Online Portal:
https://www.gwinnettcounty.com/web/gwinnett/departments/financialservices/taxassessorsoffice/appeals -
Online Filing Portal:
https://gwinnettassessor.manatron.com
→ Look for “File an Appeal” once your assessment notice is issued. -
Contact Info:
Phone: 770-822-7200
Email: assessor@gwinnettcounty.com
✉️ Gwinnett County Mailing Address for Appeals
(If filing by mail)
Gwinnett County Tax Assessor’s Office
75 Langley Drive
Lawrenceville, GA 30046
➡️ Use certified mail with return receipt to confirm timely submission.
📌 Additional Georgia Resources
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Georgia Department of Revenue – Property Tax Division
https://dor.georgia.gov/property-tax -
Property Taxpayer’s Bill of Rights
https://dor.georgia.gov/property-tax/property-taxpayers-bill-rights
