Taxes in Johns Creek
Johns Creek's tax picture combines Georgia's statewide flat income tax with Fulton County's property tax structure -- itself a genuine source disagreement on the exact effective rate -- and Fulton County's 2026 opt-out from the state's new homestead-exemption assessment cap, a decision shared with Georgia's four other largest counties.
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Learn moreGeorgia's flat state income tax and Fulton/Johns Creek combined sales tax
Georgia's state personal income tax is a single flat rate, now 4.99% for tax year 2026 under HB 463. The combined sales tax rate in Johns Creek is 7.75% (4.0% state plus 3.75% Fulton County local rate, itself split into a 3.0% county rate and a 0.75% special-district rate) -- notably, Johns Creek itself levies no additional city-level sales tax on top of the county rate, per 2026 aggregator data. This 7.75% rate sits at the lower end of Fulton County's own internal range, which runs up to 8.90% in some jurisdictions with additional local taxes.
Fulton County's effective property tax rate -- a real disagreement, only partially resolved
Sources disagreed on Fulton County's effective property tax rate even within this pass: one source cites a median effective rate of 1.05%, while another cites 0.88% (with homeowners paying roughly $4,033/year on a $458,800 home value at that lower rate). This gap was not resolved to one figure -- the base record left this field null pending verification, and this pass's research confirms that caution was warranted, since the two most-cited figures found genuinely disagree by roughly 20%. Fulton County's own general-fund millage rate has held steady at 8.87 mills for five consecutive years (2022-2026), but the total bill on any parcel also includes school and city millage layers, and can range roughly $4,670 (unincorporated areas) to over $6,100 (City of Atlanta) on a $400,000 home depending on jurisdiction -- Johns Creek's own combined rate was not independently isolated from this range this pass.
Fulton County's 2026 opt-out from the statewide HB 581 assessment cap
Georgia's HB 581 floating homestead exemption, effective 2025, caps annual taxable-value growth on homesteaded property at the inflation rate statewide -- but allows local taxing authorities to opt out year-by-year through 2026-2029. Both Fulton County and the City of Atlanta opted out for 2026, a decision Johns Creek (as a Fulton County municipality) shares, alongside DeKalb, Gwinnett, Cobb, and Chatham counties -- Georgia's five largest by population. Roughly two-thirds of Georgia counties by count, representing nearly 83% of the state's population, saw at least one relevant taxing authority opt out for 2026. An existing, separate CPI-based homestead freeze does still apply for previously qualifying Fulton County homeowners under longer-standing rules distinct from HB 581 itself.
A 2027 statutory change will eventually override the opt-out
Georgia's 2026 HOME Act (Senate Bill 33) makes the HB 581 inflation-rate assessment cap MANDATORY for all counties, cities, and school districts starting in 2027, ending the local opt-out option statewide -- meaning Fulton County's (and by extension Johns Creek's) current opt-out status is a temporary policy choice, not a permanent one, and property-tax growth rules will converge with the statewide standard from 2027 onward pending any further legislative change.
New senior homestead exemptions for 2026, and Georgia's retirement income exclusion
The City of Johns Creek has publicized new senior homestead exemption options available starting for 2026, with eligible homeowners 65 and over (and 70 and over for certain exemptions) potentially qualifying for significant reductions in school property taxes specifically -- confirm current eligibility and filing details directly with the city and Fulton County Board of Assessors. Separately, Georgia residents 65+ can exclude up to $65,000 per person of qualifying retirement income from state income tax, with a $35,000 exclusion for ages 62-64, and Georgia does not tax Social Security at all. See retiring for the fuller picture.
Key takeaways
- Georgia's flat state income tax is 4.99% for 2026 (HB 463); the combined sales tax rate in Johns Creek is 7.75% (4.0% state + 3.75% Fulton County, with no additional Johns Creek city sales tax).
- Fulton County's effective property tax rate is genuinely disputed even within this pass: 1.05% by one source versus 0.88% by another (roughly $4,033/year on a $458,800 home at the lower rate) -- left unresolved rather than forced to one figure, consistent with the base record's own caution.
- Fulton County (school system and, per this pass, general government in many cases) opted OUT of the statewide HB 581 homestead-exemption assessment cap for 2026, a decision shared with DeKalb, Gwinnett, Cobb, and Chatham -- Georgia's five largest counties -- meaning Johns Creek homeowners aren't currently covered by that inflation-rate cap, though a separate longer-standing CPI freeze applies for some existing homeowners.
- A 2027 state law (SB 33 / HOME Act) will make the assessment cap mandatory statewide regardless of local opt-outs, so Fulton County's/Johns Creek's current exception is temporary.
- New Johns Creek senior homestead exemptions apply starting 2026 for qualifying homeowners 65+/70+; Georgia's statewide $65,000-per-person (65+) retirement income exclusion and full Social Security tax exemption also apply here -- see taxes and retiring.
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