Taxes & Insurance in Duluth
Duluth sits in Gwinnett County, whose property-tax rate is reasonably well documented, though a Duluth-city-specific millage on top of the county rate was not confirmed this session. Georgia's state income tax dropped to a flat 4.99% for 2026, and homeowners insurance costs varied widely across sources.
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Learn moreGwinnett County property tax: a documented rate, but no Duluth-specific city millage confirmed
Gwinnett County's effective property tax rate was cited at roughly 0.95%-0.98% depending on the source, with a median tax bill of $3,381 on a $345,700 home -- about 0.17 points above the Georgia state average of 0.81% (propertytaxrates.org, Ownwell, TaxByCounty aggregation, retrieved 2026-08-22). The total millage rate in unincorporated Gwinnett County is 34.86 mills for 2026, but Duluth is an incorporated city, and city residents typically pay additional city-level millage on top of the county rate -- a specific, current Duluth city millage figure was not independently confirmed this session; check the Gwinnett County Tax Commissioner or City of Duluth directly for a parcel-specific estimate. This gap is disclosed explicitly rather than papered over with an assumed number.
Georgia's flat income tax dropped to 4.99% for 2026
Georgia replaced its old bracket system with a flat income tax, cutting the rate ahead of its original schedule: 5.39% in 2024, 5.19% in 2025, and 4.99% starting January 1, 2026 under HB 463 (ustax.tools, BlueWave HR, retrieved 2026-08-22) -- a real, recent tax cut applying statewide, including in Duluth, not a Duluth-specific benefit.
Homeowners insurance costs varied widely across sources
Georgia homeowners insurance estimates for 2026 ranged widely by source and coverage level -- from roughly $1,480/year for $200,000 in dwelling coverage up to $4,092/year cited by one source, with several sources clustering around $1,700-$2,300/year for $300,000 in coverage (MoneyGeek, Insuranceopedia, Insure.com aggregation, retrieved 2026-08-22). That is a genuine, disclosed spread rather than one settled figure -- Georgia is an inland state without hurricane-zone coastal loading, but severe thunderstorm, hail, and tornado exposure (see the climate topic) still factor into premiums. Get a specific quote for any Duluth address rather than relying on a statewide average.
Key takeaways
- Gwinnett County's effective property tax rate runs roughly 0.95%-0.98%, with a $3,381 median bill on a $345,700 home -- above the Georgia state average of 0.81%.
- A Duluth-specific city millage rate on top of the county rate was not confirmed this session -- a genuine, disclosed data gap; confirm with the City of Duluth or Gwinnett County Tax Commissioner directly.
- Georgia's state income tax is a flat 4.99% for 2026, down from 5.19% in 2025 and 5.39% in 2024 under HB 463 -- a recent, statewide cut.
- Homeowners insurance estimates ranged widely across sources ($1,480-$4,092/year depending on coverage and methodology) -- get a specific quote rather than relying on a single statewide average.
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