A buyer comparing Johns Creek to Alpharetta this fall will run into the same headline eventually: Johns Creek has the lowest municipal millage rate of any city in Fulton County. City officials have said so for years, and the numbers back it up. The instinct that follows is obvious. Lower city rate, lower total tax bill, case closed.
That instinct is wrong, or at least incomplete, and the reason why says more about how Georgia property taxes actually work than any single city's press release does.
The Number Johns Creek Keeps Winning
Johns Creek's municipal millage rate sat at 3.492 mills for 2025, described by the city as the lowest in Johns Creek's history and the lowest of any city in Fulton County. Going into this summer's budget cycle, the city proposed holding that same 3.492 rate for 2026, and still had to advertise a 5.91% tax increase and hold public hearings in July, because rising assessments meant even an unchanged rate would collect more from homeowners than the prior year. That distinction, a flat rate that still raises your bill, is going to matter again in a minute.
For comparison, Alpharetta's city rate has been 5.75 mills since 2009. Same story there: the total rate wasn't moving for the 2026 tax year, but the city advertised a 6.5% increase to the maintenance and operations portion this summer because reassessments pushed property values up faster than the rate rolled back.
Two cities, two different rates, and both proving the same point before we even get to the part that actually matters.
What Actually Shows Up on the Bill
A Fulton County property tax bill isn't set by one government. It's a stack, and each layer is controlled by a different body with its own budget cycle and its own vote.
| Taxing authority | 2025-26 rate | Who sets it |
|---|---|---|
| Fulton County general fund | 8.87 mills | Fulton County Board of Commissioners |
| Fulton County Schools | 17.08 mills | Fulton County Board of Education |
| City of Johns Creek | 3.492 mills | Johns Creek City Council |
| City of Alpharetta | 5.75 mills | Alpharetta City Council |
Run the math on a $600,000 home, assessed in Georgia at 40% of fair market value, so $240,000 in taxable value before exemptions. The county and school portions are identical no matter which of these two cities you choose: 8.87 plus 17.08 mills works out to about $6,228 a year. That's the shared base. Only the last layer changes. Johns Creek's 3.492 mills adds roughly $838. Alpharetta's 5.75 mills adds about $1,380. The gap between the two cities comes out to around $542 a year, and every dollar of it sits in the smallest slice of the stack. On the Johns Creek bill, the city's own rate accounts for less than 12% of the total. On Alpharetta's, it's just over 18%.
Johns Creek's rate advantage is real. It's also a fight over the layer that matters least.
The Governing Body Most Buyers Have Never Heard Of
The layer that matters most is Fulton County Schools, and it's set by a Board of Education, not by either city council a buyer is comparing.
The district had held its rate at 17.08 mills for two years running heading into this year's budget cycle. Fulton County Schools Superintendent Mike Looney recommended a 5.85% increase for the 2026-27 budget ahead of the Board of Education's August 20, 2026 meeting, a move that would take the rate to 18.08 mills. The reasoning cited: rising health care and retirement system contribution costs, inflation, and lost revenue from new senior homestead exemptions. Whatever the board ultimately adopted, the mechanism is the point. That single decision touches every homeowner in Fulton County identically, whether the address is in Johns Creek, Alpharetta, Roswell, or anywhere else the district serves. A one-mill move there is worth about $240 a year on that same $600,000 home, which is nearly half of the entire rate gap between Johns Creek's and Alpharetta's city halls, decided by a body neither city controls.
Alpharetta's Version of the Same Lesson
Alpharetta's own numbers make the point again from a different angle. The city rate hasn't moved since 2009, seventeen years of the same 5.75 mills. And yet Alpharetta still held public hearings this summer because the bill was going up anyway. Georgia law requires cities to calculate a rollback rate, the rate that would raise the same revenue as last year absent reassessments. When a city's actual rate comes in above that rollback number, even without changing the mill rate itself, the law treats it as an increase and requires public notice. Alpharetta's situation is the flat-rate version of the same story Johns Creek went through with its own reassessment-driven increase: the headline rate stayed put while the bill moved regardless.
Fulton County's general fund tells a steadier version of the same tale. The county has held its rate at 8.87 mills for five consecutive years, 2022 through 2026, according to the county's own budget approvals. Even a flat, stable rate at the county level doesn't override what the school district and the city each decide to do with theirs.
What This Means If You're Comparing Cities
None of this means Johns Creek's rate is meaningless or that municipal tax policy doesn't matter to a household budget. It means the comparison most buyers are making, city rate versus city rate, is a comparison of the smallest and most changeable piece of the bill, not the whole picture.
If you're weighing homes across Fulton County cities, three numbers matter more than the one in the press release:
- The current combined rate for the specific parcel, not just the city's advertised rate, since special districts and community improvement districts can add to what a ZIP code actually owes
- Which school district serves that address, since the school portion is typically the largest line item on the bill and moves on its own budget calendar
- Whether a rate increase is coming from the rate itself or from a rollback calculation triggered by reassessment, since either one changes what lands in your mailbox even when the headline number looks unchanged
For buyers looking beyond Fulton County entirely, Cherokee County offers a useful contrast. Woodstock's city council adopted a historic rate cut for its fiscal year 2026 budget, the cycle that ran from July 2025 through June 2026, bringing its total municipal rate to 5.565 mills, the lowest the city had seen in more than three decades. That's a genuinely different tax structure than Fulton's, built around a different county commission and a different school board with their own rates and their own senior exemptions. Comparing a Fulton city to a Cherokee city is comparing two entirely separate stacks. Comparing two Fulton cities to each other, as Johns Creek and Alpharetta buyers often do, is comparing two nearly identical stacks with different labels on the smallest shelf.
FAQ
Does this mean the city rate doesn't matter at all? It matters, just proportionally less than the marketing around it suggests. On a typical Fulton County home, the city's own rate is usually somewhere between one-tenth and one-fifth of the total bill. Worth knowing, not worth basing a decision on by itself.
How do I find the actual combined rate for a specific home? The Fulton County Tax Commissioner's office and the annual Notice of Assessment mailed to every property owner will show the layered breakdown for that exact parcel, including any special district or bond levies that don't show up in a city's general press release.
Property tax comparisons are one small piece of a much larger conversation about what a home in North Fulton actually costs to own over time, and it's the kind of detail that's easy to miss when you're comparing listings on price alone. If you're weighing Johns Creek against Alpharetta, Roswell, or a Cherokee County alternative and want the full picture before you write an offer, the Dawn Camarda Group can walk through the real numbers with you. Book a complimentary market consultation and we'll help you compare what these homes actually cost, not just what they list for.
