Gwinnett County · Georgia · Property Tax Authority Hub
Gwinnett County Property Taxes
The permanent, authoritative resource for Gwinnett County property tax information — how taxes are calculated, millage rates, exemptions, assessments, appeals, school taxes, and city property taxes. Grounded in official primary sources.
Gwinnett County property taxes are one of the biggest annual expenses for homeowners in Georgia's second-most-populous county. With property values rising sharply across Lawrenceville, Duluth, Suwanee, Peachtree Corners, and every Gwinnett community, understanding how your tax bill is calculated — and what you can do about it — has never been more important.
This page is the permanent, authoritative WorthFighting.org hub for Gwinnett County property tax information. We explain how assessments work, how millage rates are set, what exemptions you may qualify for, how to appeal an assessment, and how decisions by the Board of Commissioners, the School Board, and city councils directly affect your wallet.
Every factual claim is grounded in Georgia law and official primary sources. We do not fabricate tax rates, exemption amounts, or deadlines — we direct you to the Gwinnett County Tax Commissioner, the Board of Assessors, and the Georgia Department of Revenue for current figures, and we report on every millage rate vote, budget decision, and tax-related government action with a conservative, taxpayer-first lens.
Property Tax Essentials
Property Tax Basics
How Gwinnett County property taxes are calculated — assessed value (40% of fair market value), millage rates, exemptions, and the formula behind every tax bill.
Exemptions
Homestead, senior (62+ and 65+), disabled veteran, and other exemptions that reduce your assessed value and lower your tax bill. You must apply — they are not automatic.
Assessments & Appeals
The Board of Assessors determines your property's value. You have 45 days from your assessment notice to appeal. Evidence includes comparable sales, appraisals, and condition photos.
2026 Tax Information
Current millage rates, budget decisions, and tax-rate votes from the Board of Commissioners and GCPS — reported with a conservative, taxpayer-first lens.
School Taxes
Gwinnett County Public Schools sets the school millage rate — typically the largest component of your tax bill. Every budget decision and rate vote affects your wallet.
City Property Taxes
If you live inside an incorporated Gwinnett city, you may pay an additional municipal millage rate. Unincorporated residents pay county and school taxes only.
Property Tax Guides
How Gwinnett County Property Taxes Are Calculated
The step-by-step formula behind your Gwinnett property tax bill — assessed value, millage rate, and exemptions.
Read guideGwinnett County Property Tax Assessment Guide
How the Gwinnett Board of Assessors values your property and what your annual assessment notice means.
Read guideHow to Appeal a Gwinnett County Property Tax Assessment
Step-by-step guide to filing a property tax assessment appeal in Gwinnett County, including the 45-day deadline and evidence you need.
Read guideGwinnett County Homestead Exemption Guide
What the homestead exemption is, who qualifies, and how it lowers your Gwinnett County property tax bill.
Read guideGwinnett County Senior Property Tax Exemptions
Additional property tax relief for Gwinnett County homeowners aged 62 and 65 and older, including income limits and how to apply.
Read guideGwinnett County School Property Taxes Explained
How the Gwinnett County Public Schools millage rate works, why it is the largest part of your tax bill, and how school board decisions affect your wallet.
Read guideGwinnett County Millage Rate Explained
What a millage rate is, how it converts to dollars on your tax bill, and which Gwinnett authorities set the rates you pay.
Read guideHow to Estimate Your Gwinnett County Property Tax
The formula and steps to estimate your Gwinnett property tax bill, with where to find the current rates you need.
Read guideComing soon: Additional guides are being prepared with verified current-year data from official primary sources.
Latest Gwinnett Property Tax Updates
Property Tax News & Analysis
The latest Gwinnett County property tax reporting — millage rate votes, budget decisions, assessment changes, and taxpayer impact analysis.
Education
Gwinnett County School Board Budget Dissent Exposes Bloat
Board pushback exposes ballooning expenditures in Gwinnett County Public Schools as taxpayers face surging property reassessments.
Local Government
Duluth GA Homestead Exemptions: How to Lower Your Property Taxes
Every homestead exemption available to Duluth and Gwinnett homeowners: standard, senior (62+ and 65+), disability, veteran, surviving spouse, and VOE — with eligibility, savings examples, and how to apply.
Local Government
Duluth GA Property Taxes: What Homeowners Actually Pay
How Duluth, GA property taxes work: current millage rates, homestead exemptions, senior breaks, VOE, and estimated taxes for homes from $300K to $1M — inside city limits vs. unincorporated Gwinnett.
Local Government
Duluth's Tax Allocation District: Where Does the Money Go?
Duluth is the only city in Gwinnett with its own TAD. We examined the city's audit, council minutes, and bond records to trace where millions in redirected property-tax growth has gone — and who benefits.
Local Government
Who Pays for Duluth's Growth? Developers or Taxpayers?
Duluth's population has grown 44% since 2000, and Gwinnett County has crossed one million residents. We investigated the records to determine who actually pays for the roads, schools, water lines, and public safety that growth requires — and found that Gwinnett does not charge formal impact fees.
Local Government
Gwinnett Kept Its Tax Rate Above the Rollback Rate — What Duluth Homeowners Should Know
Gwinnett County held its 2026 General Fund millage rate at 6.950 mills — above the 6.782-mill rollback rate — triggering a state-mandated tax-increase notice. Here is what that actually means for Duluth homeowners.
City Property Taxes
If you live inside an incorporated Gwinnett city, you may pay an additional municipal millage rate on top of county and school taxes. Each city sets its own rate based on its budget and tax base. City-specific property tax pages will be published as verified local rate information becomes available.
Duluth Property Taxes
ViewSuwanee Property Taxes
ViewLawrenceville Property Taxes
ViewPeachtree Corners Property Taxes
ViewNorcross Property Taxes
ViewBuford Property Taxes
ViewSnellville Property Taxes
ViewLilburn Property Taxes
ViewSugar Hill Property Taxes
ViewDacula Property Taxes
ViewGrayson Property Taxes
ViewBerkeley Lake Property Taxes
ViewOfficial Resources & Primary Sources
Gwinnett County Tax Commissioner
Collects property taxes, issues tax bills, processes homestead exemption applications, and manages motor vehicle tags.
Visit official siteGwinnett County Board of Assessors
Determines the fair market value and assessed value of all real and personal property in Gwinnett County.
Visit official siteGwinnett County Board of Commissioners
Sets the county portion of the property tax millage rate and approves the annual budget.
Visit official siteGwinnett County Public Schools
Sets the school portion of the property tax millage rate, which is typically the largest component of a Gwinnett tax bill.
Visit official siteGeorgia Department of Revenue
State agency overseeing property tax administration, assessment standards, and exemption programs statewide.
Visit official siteWorthFighting.org reports on decisions made by these official bodies. Always verify current tax rates, exemption amounts, and deadlines directly with the Gwinnett County Tax Commissioner or the Georgia Department of Revenue.
Frequently Asked Questions
How is my Gwinnett County property tax calculated?
Your tax is calculated as: (Assessed Value − Exemptions) × Millage Rate ÷ 1,000. Assessed value is 40% of fair market value under Georgia law. The millage rate combines county, school, and (if applicable) city rates. See our calculation guide for a step-by-step walkthrough.
What is the homestead exemption and how do I apply?
The homestead exemption reduces the assessed value of your primary residence before the millage rate is applied. You must own and occupy the property as of January 1 and file an application with the Gwinnett County Tax Commissioner. Once granted, it renews automatically each year.
How do I appeal my Gwinnett property tax assessment?
You have 45 days from the date on your assessment notice to file an appeal with the Board of Assessors. You can appeal based on fair market value, uniformity, or both. Gather comparable sales, an appraisal, and photos of condition issues to support your case.
Are there property tax exemptions for seniors in Gwinnett County?
Yes. Georgia law provides additional exemptions for homeowners aged 62 and 65 and older, often with income limits. These exemptions frequently apply to the school tax portion — the largest component of the bill. File an application with the Tax Commissioner with income documentation.
Why did my property taxes go up if the millage rate didn't change?
If your property's assessed value increased and the taxing authority kept the same millage rate, your tax bill rises automatically. Georgia's rollback rate is the rate that would keep revenue flat when values rise — setting a rate above rollback is effectively a tax increase.
Who sets the school property tax rate in Gwinnett County?
The Gwinnett County Board of Education — the elected school board — sets the school millage rate each year as part of its budget process, after public hearings. The school portion is typically the largest single component of a Gwinnett tax bill.