Taxes in Alpharetta
Alpharetta's property tax picture layers a precisely sourced City of Alpharetta municipal rate on top of Fulton County's own rate and Fulton County Schools' rate -- the latter two not independently verified to a single current figure this pass, consistent with the same Fulton County gap already disclosed in this site's Atlanta record. Georgia's flat 4.99% state income tax and modest local sales tax apply the same as anywhere else in the state.
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Learn moreThe City of Alpharetta's own rate: precisely sourced
The City of Alpharetta's millage rate for 2026 (fiscal year 2027) is 5.750 mills total: 5.000 mills for general government operations and recurring capital, plus 0.750 mills for debt service, per the city's own 2026 Property Tax Guide. This is the most precisely sourced single layer of an Alpharetta property tax bill.
Fulton County and school-district layers were not independently verified to one current figure
One illustrative combined-rate example found during this research cited roughly 8.87 mills (county) + 18.50 mills (school) + 7.00 mills (city, though this figure differs from the city's own 5.750-mill self-reported rate above) for a total of about 34.37 mills -- but this pass could not independently verify the county and school figures in that example against a primary Fulton County or Fulton County Schools source. Consistent with this site's Atlanta record (georgia-tier-a-1.js), which disclosed Fulton County's effective property tax rate as unresolved (sources ranged roughly 0.86%-1.08%), the county and school layers for Alpharetta specifically are disclosed as a gap here rather than presented as a settled figure.
Georgia's flat 4.99% state income tax, and a state sales tax base plus local add-ons
Georgia's state personal income tax is a flat 4.99% as of tax year 2026 (see the state record for the full phase-down history). Georgia's state sales tax base rate is 4%, with counties and cities layering on local option taxes that push the statewide average combined rate to roughly 7.4% -- this pass did not independently verify Fulton County's or Alpharetta's specific combined local sales tax rate, so treat the statewide average as directional pending confirmation for a specific transaction.
Georgia's homestead exemption, retirement income exclusion, and no tax on Social Security
Beyond the standard homestead exemption available after closing (see buying-a-home), Georgia excludes up to $65,000 of qualifying retirement income per person for taxpayers 65 or older (up to $35,000 for ages 62-64), and does not tax Social Security benefits at all -- real, state-level provisions relevant to anyone weighing Alpharetta for retirement (see retiring), applying identically to any Georgia resident regardless of county.
Key takeaways
- The City of Alpharetta's own 2026 (FY2027) municipal millage rate is 5.750 mills total (5.000 general/capital + 0.750 debt) -- precisely sourced from the city's own Property Tax Guide.
- Fulton County's and Fulton County Schools' own millage rates were not independently verified to a single current figure this pass -- one illustrative combined example cited roughly 34.37 total mills, but this is disclosed as an unverified example, not a confirmed figure, consistent with the Fulton County effective-rate gap already disclosed in this site's Atlanta record.
- Georgia's flat state income tax is 4.99% for 2026; the state sales tax base is 4%, with local add-ons pushing the statewide average combined rate to roughly 7.4% (Fulton-County/Alpharetta-specific combined rate not independently verified this pass).
- Georgia excludes up to $65,000 of qualifying retirement income per person for filers 65+ ($35,000 for 62-64) and does not tax Social Security -- real, state-level provisions applying the same in Alpharetta as anywhere else in Georgia.
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