Understanding Gwinnett County's property tax calendar and important deadlines for 2025 is crucial for homeowners and property owners to avoid penalties and stay informed. Here’s a breakdown of the key dates and processes for the 2025 tax year:
January 1st:
This is the official assessment date. Ownership and property condition as of this date determine the tax liability for the entire year. You must own and occupy your primary residence by this date to be eligible for homestead exemptions for the 2025 tax year.
January 1st – April 1st:
Period for filing property tax returns for personal property such as tangible business inventory, watercraft, and aircraft. Filing for real estate is generally optional unless there have been significant changes (new purchase, extensive repairs, damage, remodeling, or demolition), though you may file a return if you disagree with the prior year's valuation.
April 1st:
Deadline to apply for Homestead Exemptions for the 2025 tax year. This is a critical deadline for homeowners seeking to reduce their property tax burden on their primary residence. If you are newly eligible due to age, income, disability, or if you purchased your home in 2024 and occupy it as your primary residence, you must apply by this date.
This date is also the due date for Mobile Home Taxes.
May:
The Annual Notice of Assessments for real and personal property are typically mailed out by the Tax Assessor's Office during this month. The notice informs you of the county’s determined Fair Market Value (FMV) for your property as of January 1st. It also outlines the 45-day appeal period.
45 days from the date printed on the Annual Notice of Assessment (typically June or July):
This is the deadline to file an appeal if you disagree with the assessed value of your property. The specific deadline will be clearly stated on your assessment notice. You can file an appeal online or by mail using the PT-311A form.
August:
Property tax bills are typically mailed out by the Tax Commissioner's Office.
October (Exact date varies annually):
The due date for paying your property taxes. For the 2024 tax year, the deadline was October 15th. It’s crucial to pay by this date to avoid penalties and interest. The exact 2025 due date will be printed on your tax bill.
Who to Contact:
Tax Assessor's Office: For questions about property valuations, assessments, appeals, and homestead exemption applications.
Phone: 770-822-7200
Tax Commissioner's Office: For questions about tax bills, payments, due dates, and status of homestead exemptions after approval.
Phone: 770-822-8800
Late Payments: Late payments accrue interest at approximately 0.88% per month plus penalties.
Online Resources: Both the Tax Assessor’s and Tax Commissioner’s websites provide online tools for searching property information, viewing assessment notices during the appeal period, paying bills, and downloading forms.
City Taxes: If your property is located within an incorporated city (e.g., Duluth, Lawrenceville), note that city taxes and their due dates may be separate from Gwinnett County’s. For example, the City of Lawrenceville bills property taxes separately.
Annual Changes: While these dates are typical, it is important to verify exact deadlines for 2025 by checking the official Gwinnett County Tax Assessor and Tax Commissioner websites closer to the dates, as deadlines can sometimes shift slightly.
Staying aware of these deadlines and understanding the Gwinnett County property tax process will help you manage your responsibilities as a property owner effectively.
Gwinnett County Tax Assessor’s Office
For property assessments, appeals, homestead exemptions, and related information.
Gwinnett County Tax Commissioner’s Office
For tax bills, payments, due dates, and exemption status.
Georgia Department of Revenue – Property Tax
Official statewide property tax information.
Property Tax Appeal Form (PT-311A)
Official appeal form for property tax assessments.