Duluth GA Property Taxes: What Homeowners Actually Pay

Duluth, Georgia homeowners pay property taxes to multiple taxing authorities, and the total bill depends on whether your home is inside the incorporated City of Duluth or in unincorporated Gwinnett County with a Duluth mailing address. There is no single "Duluth property tax rate" — your bill combines city, county, and school levies, each with its own millage rate and exemption rules.

Georgia calculates property taxes using a 40% assessment ratio: your home's fair market value is multiplied by 40% to determine the assessed value, which is then multiplied by the applicable millage rate. Homestead exemptions reduce the assessed value before the tax is calculated. A $500,000 home inside Duluth city limits typically generates a tax bill of roughly $6,157 with standard homestead exemptions — about $1,297 more than the same home in unincorporated Gwinnett with a Duluth mailing address.

How Property Taxes Are Calculated in Duluth

Georgia law sets the assessment ratio at 40% of fair market value. The calculation works in three steps:

1. Fair Market Value × 40% = Assessed Value
2. Assessed Value − Applicable Exemptions = Taxable Assessed Value
3. Taxable Assessed Value × Millage Rate ÷ 1,000 = Property Tax

One mill equals $1 of tax per $1,000 of assessed value. A millage rate of 6.950 means $6.950 per $1,000 of assessed value.

Who Gets Your Property-Tax Money?

If you live inside the incorporated City of Duluth, your bill includes three components. If you live in unincorporated Gwinnett with a Duluth mailing address, you do not pay City of Duluth taxes.

Taxing Authority	Current Millage Rate	What It Funds
City of Duluth	6.551 mills (2026 proposed)	City services, police, parks
Gwinnett County	6.950 mills (General Fund)	County services, sheriff, courts, roads
GCPS	18.70 mills (M&O)	K-12 education
State of Georgia	$2,000 exemption only	No state property tax levy

The Gwinnett County rate of 6.950 mills was held above the 6.782-mill rollback rate for 2026 — read our full analysis of Gwinnett's 2026 millage rate decision.

Property Taxes on a $500,000 Home in Duluth

Here is a step-by-step calculation for a hypothetical $500,000 home inside Duluth city limits with standard homestead exemptions.

Step 1: Fair Market Value = $500,000 Step 2: Assessed Value (40%) = $200,000 Step 3: Apply homestead exemptions by taxing authority:

Taxing Authority	Exemption	Taxable AV
City of Duluth	$2,000 (state)	$198,000
Gwinnett County	$12,000 (state + county)	$188,000
GCPS	$10,000 (state + school)	$190,000

Step 4: Calculate tax:

Authority	Mills	Taxable AV	Tax
City of Duluth	6.551	$198,000	$1,297.10
Gwinnett County	6.950	$188,000	$1,306.60
GCPS	18.70	$190,000	$3,553.00
Total			$6,156.70

Assumptions: Home inside Duluth city limits, standard homestead exemptions applied, 2026 proposed city millage adopted. Does not include senior, disability, or veteran exemptions. Your actual bill may differ.

Estimated Taxes at Different Home Values

Home Value	AV (40%)	Before Exemptions (Inside Duluth)	With Homestead (Inside Duluth)	With Homestead (Unincorporated)
$300,000	$120,000	$3,864	$3,581	$2,808
$400,000	$160,000	$5,152	$4,869	$3,834
$500,000	$200,000	$6,440	$6,157	$4,860
$750,000	$300,000	$9,660	$9,377	$7,425
$1,000,000	$400,000	$12,880	$12,597	$9,990

The "unincorporated" column shows taxes for a home with a Duluth mailing address outside city limits — no City of Duluth tax is owed.

Duluth City Limits vs. a Duluth Mailing Address

A Duluth, GA mailing address does not mean your property is inside the City of Duluth. Many properties with a Duluth mailing address are in unincorporated Gwinnett County. These homeowners do not pay City of Duluth property taxes, do not vote in Duluth city elections, and do not receive Duluth city services.

For a $500,000 home, living inside Duluth city limits adds approximately $1,297 per year in city property taxes compared to the same home in unincorporated Gwinnett.

How to check: Search your property on the Gwinnett County Tax Assessor's property search, check the City of Duluth property tax page, or contact the Gwinnett County Tax Commissioner.

Duluth and Gwinnett Homestead Exemptions

You must apply for homestead exemptions — they are not automatic.

Standard State Homestead Exemption

• Amount: $2,000 off assessed value (all taxing authorities)
• Eligibility: Own and occupy as primary residence by January 1
• Apply at: Gwinnett County Tax Commissioner

Gwinnett County Homestead Exemption

• Amount: $10,000 off assessed value (county portion only)
• Deadline: Typically April 1

Gwinnett County School Homestead Exemption

• Amount: $8,000 off assessed value (GCPS portion only)
• Deadline: Typically April 1

City of Duluth Homestead Exemption

The City of Duluth may offer its own exemption. This could not be independently verified at publication time. Contact the Duluth City Clerk to confirm.

Property-Tax Breaks for Seniors in Duluth

Gwinnett County School Tax Exemption for Seniors (Age 65+)

• Benefit: 100% exemption from GCPS property taxes
• Impact: Eliminates the largest bill component (18.70 mills). For a $500,000 home, saves approximately $3,553/year
• Apply at: Gwinnett County Tax Commissioner

Additional age 62+ exemptions may be available with income requirements. Verify current rules with the Tax Commissioner.

What Is Gwinnett's Value Offset Exemption?

The Value Offset Exemption (VOE) holds the assessed value of your home constant for the county tax portion of your bill. If your home's market value rises, the VOE offsets the increase so your county tax bill does not go up solely because of appreciation.

• What it covers: The Gwinnett County government portion (6.950 mills)
• What it does NOT cover: Millage rate increases, school tax increases, or city tax increases

This connects directly to the 2026 millage debate. Gwinnett held its rate at 6.950 mills — above the 6.782-mill rollback rate — meaning rising assessments will increase tax bills. Read our full investigation →

Why Did My Duluth Property Assessment Increase?

Your tax bill can go up even if the millage rate stays the same. Each year, the Gwinnett County Board of Tax Assessors sends an Annual Notice of Assessment estimating your property's fair market value as of January 1. If market values in your area rose, your assessed value (40% of FMV) rises too, increasing your bill.

• Assessed value = 40% of fair market value (set by the Tax Assessor)
• Millage rate = set by each taxing authority (County Commission, City Council, School Board)

Your tax bill = Assessed Value × Millage Rate. If either number goes up, your bill goes up.

How to Appeal a Gwinnett County Property Assessment

1. Review your Annual Notice of Assessment (mailed each spring)
2. File an appeal with the Gwinnett County Board of Tax Assessors within 45 days of the notice date
3. File online at the Tax Assessor's portal or by mail
4. Include evidence: comparable sales, appraisal, photos of property damage
5. Outcome: Your appeal may be resolved through informal review, Board of Equalization hearing, or arbitration

This is not legal advice. Consult the Tax Assessor or a qualified property-tax professional for your situation.

Assessment Notice vs. Property Tax Bill

• Annual Notice of Assessment — Mailed in spring by the Tax Assessor. Shows your property value. NOT a bill — it is your chance to appeal.
• Property Tax Bill — Mailed later by the Tax Commissioner (county/school) and City of Duluth (city taxes). This is the bill you pay.

When Are Duluth Property Taxes Due?

• Gwinnett County and school taxes: Typically due November/December. Pay at Gwinnett County Tax Commissioner
• City of Duluth taxes: December 15 (based on 2025; verify current date with the City). Pay at City of Duluth

Who Actually Collects the Money?

Role	Agency	What They Do
Tax Assessor	Gwinnett County Board of Tax Assessors	Determines property values
Tax Commissioner	Gwinnett County Tax Commissioner	Collects county and school taxes
City Clerk	City of Duluth	Bills and collects city taxes
GCPS	Gwinnett County Public Schools	Sets school millage rate

Have Duluth/Gwinnett Property-Tax Rates Increased?

Historical rates should be verified on the Gwinnett County Tax Commissioner and City of Duluth websites. For 2026:

• Gwinnett County: 6.950 mills — held above the 6.782-mill rollback rate. Full analysis →
• GCPS: 18.70 mills (FY2026 M&O)
• City of Duluth: 6.551 mills (2026 proposed)

Even when millage rates stay flat, rising property values increase the total tax bill.

Where Does the Money Go?

• City of Duluth — Police, parks, Town Green, code enforcement
• Gwinnett County — Sheriff, courts, jails, roads, transit
• GCPS — K-12 education for 180,000+ students

For deeper accountability reporting:

• Gwinnett's $2.58 Billion Budget: What Duluth Taxpayers Are Paying For
• Gwinnett Kept Its Tax Rate Above the Rollback Rate
• Duluth's Tax Allocation District: Where Does the Money Go?
• Who Pays for Duluth's Growth? Developers or Taxpayers?
• 1,400 Homes Proposed Near Duluth: Can the Roads Handle the Growth?

Duluth Property Tax FAQ

How much are property taxes in Duluth GA?

A $500,000 home inside Duluth with standard homestead exemptions pays approximately $6,157/year. The same home in unincorporated Gwinnett pays about $4,860 — $1,297 less.

What is the Duluth GA property tax rate?

There is no single rate. Taxes combine City of Duluth (6.551 mills), Gwinnett County (6.950 mills), and GCPS (18.70 mills) — approximately 32.2 mills inside Duluth, or 25.65 mills in unincorporated Gwinnett.

Does Duluth GA have a homestead exemption?

Yes. Georgia's $2,000 standard exemption applies to all authorities. Gwinnett County adds $10,000 (county portion) and GCPS adds $8,000 (school portion). The City of Duluth may offer its own — verify with the City Clerk.

Do seniors get a property-tax break in Duluth?

Yes. Gwinnett residents 65+ can receive a 100% exemption from GCPS school taxes — saving approximately $3,553/year on a $500,000 home.

Is a Duluth mailing address inside Duluth city limits?

Not necessarily. Many Duluth-address properties are in unincorporated Gwinnett County. Check the Gwinnett County Tax Assessor's property search to confirm.

How do I appeal my Gwinnett County property assessment?

File with the Board of Tax Assessors within 45 days of your Annual Notice of Assessment. File online or by mail with evidence like comparable sales or an appraisal.

When are Duluth property taxes due?

Gwinnett County/school taxes are typically due November/December. City of Duluth taxes were due December 15 for 2025. Verify current deadlines with each office.

Can my taxes increase if the millage rate stays the same?

Yes. If your assessed value rises because market values increased, your bill goes up even with a flat millage rate.

Official Duluth & Gwinnett Property Tax Resources

• City of Duluth Property Tax
• Gwinnett County Tax Commissioner
• Gwinnett County Tax Assessor
• Gwinnett County Public Schools Budget & Millage
• Georgia Department of Revenue — Gwinnett Property Tax Facts

Property tax rates and exemption rules can change annually. Always verify with the official sources above.

More Gwinnett County Coverage

For more reporting from across Gwinnett County — Lawrenceville, Duluth, Norcross, Snellville, Suwanee, and every community in the county — visit our Gwinnett County news hub, or browse all local news from WorthFighting.org.