Taxes in Suwanee
Suwanee residents pay a property tax bill layered across the city, Gwinnett County, and Gwinnett County Public Schools -- the city's own rate is fixed and precisely sourced, but the total combined effective rate depends on the county and school layers, which this dataset discloses as a range rather than one precise figure. Beyond property tax, Georgia's flat state income tax and a modest local sales tax round out the picture.
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Learn moreThe city's own rate: fixed and precisely sourced
The City of Suwanee's own municipal millage rate has held at 4.93 mills for thirteen consecutive years through FY2026, per the city's own budget reporting -- a genuinely stable, precisely sourced figure and a real point of civic consistency worth noting.
Gwinnett County's overall rate: cited two ways
Gwinnett County's countywide effective property tax rate is cited at 0.98% of assessed value by one aggregator. Separately, the county's total millage rate for unincorporated Gwinnett is cited at 34.86 mills (combining general fund, school district, and special service district portions), with the county general fund portion itself held at 6.95 mills for a seventh consecutive year. City of Suwanee residents pay the city's 4.93-mill rate on top of the applicable county and school portions -- these are overlapping but not identical measurements (an effective rate on actual sales vs. a nominal combined millage), both pointing to a real, moderate property tax burden.
A flat, recently accelerated state income tax
Georgia's flat personal income tax rate is 4.99% as of 2026. That figure has a real, worth-disclosing legislative wrinkle: HB 111 originally set a schedule of 0.10-percentage-point annual cuts starting in 2026 that wouldn't have reached 4.99% until 2028, but HB 463, signed in May 2026, accelerated the timeline to reach 4.99% immediately as of January 1, 2026. There is no Georgia state estate or inheritance tax.
A modest local sales tax, and no additional city-level sales tax
The combined 2026 sales tax rate for Suwanee is 6% -- Georgia's 4.0% state rate plus Gwinnett County's 2.0% county rate, with no additional city-level sales tax layered on top (Suwanee's own city sales tax rate is 0%). This runs modestly below the combined rates cited for some other metro-Atlanta jurisdictions with additional special-district sales tax layers.
Key takeaways
- The City of Suwanee's own municipal millage rate has held at 4.93 mills for thirteen consecutive years through FY2026 -- a genuinely stable, precisely sourced figure.
- Gwinnett County's effective property tax rate is cited at 0.98% of assessed value by one source; the county's total unincorporated millage runs 34.86 mills combining county, school, and special-district portions, with the county general fund portion held at 6.95 mills for a seventh consecutive year.
- Georgia's flat state income tax is 4.99% as of 2026 -- HB 463 (signed May 2026) accelerated an original HB 111 schedule that would not have reached 4.99% until 2028. No state estate or inheritance tax.
- Suwanee's combined 2026 sales tax rate is 6% (4.0% state + 2.0% Gwinnett County, with no additional city sales tax) -- modestly lower than some other metro-Atlanta jurisdictions with extra special-district sales tax layers.
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