Gwinnett County, Georgia

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2026 Appeal Deadline: June 29, 2026

88%

Success Rate†

$774

Average Annual Savings‡

4.7★

3,000+ Google Reviews

35%

Savings Fee

Gwinnett County Overview

What Does the Average Gwinnett County Homeowner Pay in Property Taxes?

Gwinnett County property taxes are among the highest in Georgia. Here's what a typical homeowner pays and how that compares to your bill.

Median Home Value

~$400K

GCTC 2026 data

Avg. Annual Bill

~$4,200

With the homestead exemption

Effective Tax Rate

0.9-1.4%

Varies by location

Properties GCTC Values

311K+

Across Gwinnett County

Is your bill fair and equal this year?

You may be over-assessed. A $30,000 over-assessment costs you about $300-$420 every single year and compounds each year you don't challenge it. Ownwell can tell you in seconds.

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Gwinnett County Tax Bills

Why Gwinnett County Property Tax Bills Are Among the Highest in Georgia

Gwinnett County is Georgia's second most populous county and one of the most diverse communities in the nation. With more than 311,000 parcels valued annually and residential values continuing to climb, knowing your assessed value and whether it is accurate matters more than ever.

Multiple Taxing Entities Stack on the Same Property

Your Gwinnett County property tax bill is the sum of levies from multiple entities: Gwinnett County, Gwinnett County Public Schools (GCPS), your municipality (Lawrenceville, Duluth, Suwanee, Norcross, Peachtree Corners, and others), and potentially Community Improvement Districts (CIDs). Each sets its own millage rate independently.

Annual Reassessment with Rising Values

Georgia reassesses properties annually. Gwinnett's Value Offset Exemption (VOE) has frozen the county portion since 2001, but it applies only to the county government portion of your bill — your school district and city tax portions still increase as assessed values rise. Since GCPS accounts for more than half of most Gwinnett bills, an accurate assessed value matters significantly.

A Failed Appeal Can Increase Your Value

Georgia is one of the few states where a failed property tax appeal can result in your assessed value being increased. Under Georgia law, if the Board of Assessors finds during the appeal process that your property is undervalued, they may counter-appeal and raise your assessment. This makes working with experienced professionals essential.

Win an Appeal: Lock In 3 Years of Protection (299c Freeze)

After a successful appeal in Georgia, your assessed value is frozen at the reduced level for three years under O.C.G.A. § 48-5-299(c). This is especially valuable in Gwinnett County, where both school and city taxes are directly tied to your assessed value — the freeze delivers compounded savings across multiple taxing entities.

How Bills Are Calculated

How Gwinnett County Property Tax Rates Work

In Georgia, properties are assessed at 40% of fair market value. Tax rates, called millage rates, are then applied to your assessed value. One mill equals $1 per $1,000 of assessed value. Your total bill is the sum of the millage rates from all taxing entities that cover your address.

Example: For a property with a $400,000 market value: assessed value (40%) is $160,000; gross bill at the 2025 combined rate of 34.86 mills is ~$5,578 before exemptions; net bill after the standard homestead exemption (S1R) and Value Offset Exemption is ~$4,200.

Taxing Entity2025 Rate (per $100 assessed value)Notes
Gwinnett County General Fund6.95 millsUnchanged for 6th consecutive year
Gwinnett County Public Schools18.80 millsApplies to most Gwinnett residents; Buford City Schools applies to Buford city parcels
School Bond1.45 millsPays debt service on school construction bonds
Recreation1.00 millsParks and recreation services
Fire / EMS3.20 millsAll county areas
Police2.90 millsUnincorporated Gwinnett only
Economic Development0.30 millsCounty-wide levy
Unincorporated Total34.60 millsCity residents may pay additional city millage
Select City Rates (city portion only)0 - 1.99 millsBerkeley Lake: 1.19; Grayson: 1.99; Peachtree Corners: 0 (no city tax)
Effective Rate (as % of market value)0.9% - 1.4%Lower than nominal rate due to 40% assessment + exemptions

Rates are approximate and subject to annual adjustment. Verify your specific millage rates at gwinnetttaxcommissioner.com or through the Georgia Department of Revenue's millage rate database.

How the GCTC Works

How the Gwinnett County Board of Assessors Determines Your Value

The Gwinnett County Board of Assessors, with the Tax Commissioner's Office (GCTC) led by Denise R. Mitchell, is responsible for determining the fair market value of all taxable property in Gwinnett County each year. Assessors use mass appraisal models based on comparable sales, property characteristics, and neighborhood data, but they usually do not physically inspect most properties in person.

Your Annual Notice of Assessment (mailed in May) shows two values: fair market value and assessed value (40% of fair market). In 2026, the GCTC mailed approximately 311,000 notices on May 15. Tax rates are applied to the assessed value after any exemptions are subtracted.

Scale-Driven Errors

With more than 311,000 parcels to value annually, the GCTC relies almost entirely on automated mass appraisal models. Individual property conditions, interior updates, unpermitted improvements, and hyperlocal market factors are frequently missed — creating real opportunities to appeal.

Neighborhood Boundaries May Not Reflect Your Street

The GCTC groups properties into assessment neighborhoods for mass appraisal. Homes on the edges of these zones may be compared to properties in very different micro-markets, leading to systematic over-assessment in certain areas.

Condition and Deferred Maintenance Ignored

Assessors working from aerial imagery and data records cannot capture roof condition, foundation issues, flood damage history, or deferred maintenance. These factors can meaningfully reduce a property's true market value — and your assessed value.

First Informal Offers Are a Starting Point

The BOA informal review process resolves appeals quickly — for the county. Many homeowners accept a minor reduction without realizing Ownwell's data-driven approach can often support a significantly larger reduction.

2026 Appeal Calendar

Gwinnett County Property Tax Appeal Dates for 2026

The Gwinnett County Board of Assessors mailed Annual Notices of Assessment on May 15, 2026 (~311,000 notices). You have 45 days from the date on your notice to file an appeal — the residential deadline is June 29, 2026. Missing this deadline means waiting until the following year. Ownwell monitors your account and files before the window closes.

DateWhat Happens
January 1, 2026Valuation date — GCTC assesses your property's value as of this date
April 1, 2026Homestead exemption application deadline for the 2026 tax year
May 15, 2026Annual Notice of Assessment mailed by GCTC (~311,000 notices)
June 29, 2026Key DateResidential appeal filing deadline — 45 days from notice date. File with GCTC (informal appeal). Ownwell files for you.
~90 days after filingGCTC informal review period; GCTC may adjust your value.
~Fall 2026If still disputed, appeal forwarded to the Board of Equalization (BOE) for a formal hearing.
October 15, 2026Property tax bill due — pay in full to avoid penalties. Georgia law requires you to pay the temporary assessed value even if an appeal is pending.
120 days after due datePenalties begin accruing — 5% penalty at 120 days, up to 20% maximum.
Exemptions

Gwinnett County Exemptions You May Be Missing

Exemptions reduce your taxable assessed value before millage rates are applied. Filing for every exemption you qualify for and appealing your assessed value work together to minimize your bill. The homestead exemption deadline is April 1 each year; apply through the Gwinnett County Tax Commissioner.

S1R Regular Homestead
$10K / $8K / $7K off

No age or income limit. For all owner-occupants as of January 1. Reduces your assessed value by $10,000 for county taxes, $8,000 for school taxes, and $7,000 for recreation taxes.

Value Offset Exemption (VOE)
Freezes county value

Automatically applied when any homestead exemption is granted. Holds the county taxable value of your property constant even as your assessed value rises with the market. In place since 2001; applies only to the county portion — school, city, and other taxes are still calculated on your current assessed value.

L5A Senior School (65+)
Full school tax exemption

Homeowners 65+ with net income up to $124,648 (2026) qualify for a total exemption from all school and school bond taxes, plus $10,000 off county and $7,000 off recreation. School taxes are the largest share of most Gwinnett bills — can save qualifying seniors $3,000+ per year. Also available to those 100% disabled, regardless of age.

How Ownwell Works

Ownwell Handles Your Gwinnett County Appeal From Start to Finish

Appealing your Gwinnett County property taxes with Ownwell takes less than five minutes to start. Our technology analyzes your property, builds your case, and handles every step with GCTC — so you never have to attend a hearing or file a single form.

1

Enter Your Address

Ownwell instantly analyzes your property, pulls your current assessed value from GCTC records, and identifies your best path to a reduction.

2

We Build Your Case

Our technology and local Gwinnett County experts compare your assessment against recent comparable sales, neighborhood data, and property condition factors.

3

We File & Represent You

Ownwell files your appeal with the GCTC before the June 29 deadline and represents you through the informal review and, if necessary, the formal Board of Equalization (BOE) hearing.

4

You Save and Stay Protected

You only pay 35% of the actual savings we secure. No reduction means no fee — ever. Win your appeal, and your assessed value is frozen for three years under Georgia's 299c provision — protecting you across school, city, and county taxes.

Payment Info

How to Pay Your Gwinnett County Property Taxes

Gwinnett County property taxes are billed once annually and are due by October 15. Denise Mitchell serves as the Gwinnett County Tax Commissioner.

Penalties begin accruing on October 16 for any unpaid balance, with a 5% penalty applied on the 120th day after the due date and an additional 5% every 120 days thereafter, up to a maximum of 20% of the total bill. If you have a pending appeal, you are still required to pay the temporary assessed bill on time to avoid penalties.
1

Pay Online

Visit gwinnetttaxcommissioner.com to pay by credit card, debit card, e-check, or other accepted methods using your parcel ID number.

2

Pay by Mail

Mail your check or money order, payable to the Gwinnett County Tax Commissioner, to the address on your tax bill. Allow adequate mailing time to ensure receipt before October 15.

3

Pay In Person

Pay in person at any Gwinnett County Tax Commissioner location. Main office: 75 Langley Drive, Lawrenceville, GA 30046. Additional service locations are available across the county.

4

Payment Plans

Gwinnett County does not offer standard installment payment plans for current-year bills. For delinquent tax situations, contact the Tax Commissioner's office.

FAQs

Frequently Asked Questions About Gwinnett County Property Taxes

What is the Gwinnett County property tax appeal deadline for 2026?
The residential appeal deadline is June 29, 2026. The Gwinnett County Board of Assessors mailed approximately 311,000 Annual Notices of Assessment on May 15, 2026. You have 45 days from the date printed on your notice to file an appeal. Ownwell monitors your account and files before the window closes.
How much does Ownwell charge to appeal my Gwinnett County property taxes?
Ownwell works on a contingency basis — you pay nothing upfront. If Ownwell doesn't reduce your property tax bill, you owe nothing. If we do get a reduction, Ownwell's fee is 35% of the actual savings secured. You only pay when you save.
Is there any risk to appealing my Gwinnett County property taxes?
Georgia is one of the few states where a failed appeal can result in an increase in your assessed value. If the Board of Assessors finds during the appeal process that your property is undervalued, they may counter-appeal and raise your assessment. This makes working with experienced professionals essential. Ownwell only files when the data supports a strong case for a reduction.
What is the Gwinnett County homestead exemption and how do I apply?
The standard homestead exemption in Gwinnett County (S1R) reduces your assessed value by $10,000 for county taxes, $8,000 for school taxes, and $7,000 for recreation taxes. When you apply for any homestead exemption, the Value Offset Exemption (VOE) is also automatically applied, freezing the county taxable value of your property. The application deadline is April 1 each year. Once granted, exemptions renew automatically as long as you remain the primary occupant.
What is the 299c freeze and how does it benefit me?
Under O.C.G.A. § 48-5-299(c), after a successful appeal that reduces your market value and assessed value, your property's assessed value is frozen at the reduced level for three years. Because Gwinnett's school taxes and city taxes are both based on your assessed value, the 299c freeze delivers compounded savings across multiple taxing entities.
Does the HB 581 floating homestead exemption apply to my Gwinnett County property?
No. Gwinnett County opted out of HB 581 (the statewide adjusted base year homestead exemption passed by Georgia voters in November 2024) because its existing Value Offset Exemption (VOE) already holds the county taxable value constant for qualifying homeowners. Gwinnett County Public Schools also voted to opt out. The VOE continues to apply to homeowners with a homestead exemption on file.
What is the effective property tax rate in Gwinnett County?
The effective property tax rate in Gwinnett County ranges from approximately 0.9% to 1.4% of fair market value. Rates vary by location — unincorporated residents face the highest combined millage rate (34.86 mills in 2025), while incorporated city residents may pay more or less depending on their city's millage. With a median home value of approximately $400,000, a homeowner in unincorporated Gwinnett with the standard homestead exemption and VOE pays roughly $4,200 per year.
How do I look up my Gwinnett County property tax assessment?
Search your property's assessed value, exemptions, and appeal history at qpublic.schneidercorp.com or gwinnettcounty.com/assessor using your address or parcel ID. Your Annual Notice of Assessment, mailed by the GCTC in May, will also show your current fair market value, assessed value, and any exemptions on file.
Do I still have to pay taxes while my appeal is pending?
Yes. You are required to pay a temporary assessed value — the lesser of the prior year's assessed value or 85% of the current year's proposed value — by October 15, regardless of a pending appeal. Failure to pay results in penalties. If your appeal is successful and results in a lower final value, any overpayment will be refunded or credited.
What happens at a Board of Equalization (BOE) hearing?
The Board of Equalization is a panel of citizens appointed to hear formal property tax appeals in Gwinnett County. At the BOE hearing, you or your representative present evidence — comparable sales, appraisals, condition documentation — that your property is over-assessed. The BOE reviews the evidence and issues a binding decision. Ownwell attends and presents your case, so you do not need to appear.
What exemptions beyond the Standard Homestead Exemption should I check?
Several high-value exemptions are commonly missed in Gwinnett County:

• Value Offset Exemption (VOE): Automatically applied with any homestead exemption. Freezes the county taxable value of your property regardless of market increases. Apply at gwinnetttaxcommissioner.com by April 1.
• L5A Senior School Exemption (65+): Full exemption from all school and school bond taxes for homeowners 65+ with income under $124,648. Also available to those 100% disabled, regardless of age.
• L3A $20,000 Senior Exemption (65+): $20,000 off county, school, and recreation assessed values for homeowners 65+ with income under $10,000.
• S5 Disabled Veterans Exemption: $126,526 reduction in assessed value (2026) for veterans with 100% service-connected disability rating.
• SG Surviving Spouse (Peace Officer / Firefighter): 100% exemption from all property taxes for unremarried surviving spouses of officers or firefighters killed in the line of duty.