Georgia’s HOME Act (Senate Bill 33), signed May 11, 2026, makes an inflation-based cap on homestead assessment growth mandatory for every city, county and school district starting with the 2027 tax year. For Atlanta buyers, that cap limits how fast a primary residence’s taxable value can rise. It does not cap millage rates, it does not cover second homes or rentals, and it does not carry a seller’s protection over to the new owner. A buyer’s budget should come from the property’s own assessment record, not the seller’s old bill.

Atlanta Property Taxes in 2027: What HB 581 and the HOME Act Mean for Buyers

Atlanta property taxes are not one decision. A single bill can carry the choices of a city, a county and a school system, and until now each of them could decide separately whether to join Georgia’s statewide homeowner protection. That is why the number on a seller’s tax bill is rarely the number a buyer ends up paying. Starting with the 2027 tax year, one piece of that puzzle changes: the opt-out ends.

This guide covers what HB 581 and the new HOME Act actually do, how Atlanta-area governments responded, and what buyers and current owners should check before the next tax cycle. It is general information, not tax advice.

What Is the HB 581 Floating Homestead Exemption?

HB 581 is the Georgia law that took effect January 1, 2025, and limits how fast the taxable assessed value of a homesteaded primary residence can grow each year, tying that growth to inflation instead of the market. Georgia voters approved it as Amendment 1 in November 2024.

Georgia calls it a floating homestead exemption. It lowers a home’s taxable assessed value by the amount the current assessment has risen above the adjusted base-year value, and that base-year value moves each year with a statewide inflation index, not with what the house could sell for. It is a cap, not a freeze: taxable value still rises, just more slowly than a hot market would push it. For the 2026 digest year, the Georgia Department of Revenue set the index at 2.7%. The state recalculates it every year, so 2.7% is not a promise about future years.

Two limits matter to buyers. The protection applies only to a homesteaded primary residence, meaning the owner lives in the home, so second homes, investment properties and commercial properties do not qualify. And it works on assessed value, not on the tax rate. A city, county or school district can still change its millage rate, so taxable value can rise slowly while the final bill climbs anyway.

What Does Georgia’s HOME Act Change in 2027?

The HOME Act (Senate Bill 33), signed by Gov. Brian Kemp on May 11, 2026, ends the local opt-out. Beginning with the 2027 tax year, every city, county, consolidated government and school district in Georgia must apply the inflation-based cap to homesteaded primary residences.

During HB 581’s rollout, taxing authorities had until March 1, 2025 to opt out, and many metro Atlanta governments and school systems did. That left homeowners with a patchwork where the same state law protected one part of a bill and not another. From 2027, the patchwork on the value side goes away.

One timing detail deserves attention. Summaries of the Georgia Department of Revenue’s 2026 legislative update indicate that homeowners who become covered for the first time in 2027 start from their 2026 assessed value, which makes this year’s assessment more important than a typical year’s. Homeowners whose protection already began in 2025 have a base year tied to when they personally first qualified, not to one date that applies to everyone.

Which Atlanta-Area Governments Opted Out of HB 581?

Each taxing authority made its own decision in early 2025, which is why “Fulton opted out” is too blunt to be useful. Fulton County’s government and Fulton County Schools are separate authorities, and they chose differently.

The City of Atlanta kept its own protection: the base freeze exemption Atlanta voters approved in 2019 through HB 820, which limits annual growth in a homestead’s taxable assessment to 2.6% over its lowest base-year value. City officials said the local rule offered more predictable growth than the state’s inflation-linked approach, and for 2026 the 2.6% cap sits just under the state’s 2.7% index. That cap applies only to the city’s portion of the bill.

Atlanta’s chief financial officer told a 2025 public hearing that schools make up about half of a typical City of Atlanta residential bill, with the city and county at roughly a quarter each. That split is why each authority’s decision matters.

How the City of Atlanta’s local freeze works alongside the mandatory state cap from 2027 is worth confirming with the Fulton County Board of Assessors for a specific address.

Why Doesn’t a Seller’s Tax Bill Predict a Buyer’s?

Because a homestead exemption belongs to the owner, not to the house. It stays with the seller, except in a narrow situation where a surviving spouse continues living in the home.

A seller who bought in 2015 may carry years of protection built into the assessed value. A buyer does not inherit it at closing. Georgia law generally treats the price of a recent arm’s-length sale as the maximum fair market value the county can use for the following tax year, so the purchase price matters, but the assessor still goes through its own process to set the value. There is no instant reset at the closing table.

A buyer has to file their own homestead exemption, which establishes their own base year. The owner must own and occupy the home as of January 1, and in Fulton and DeKalb the application is due April 1. New construction and major additions work a little differently: even with a homestead exemption in place, they can add new assessed value to the base.

Before getting attached to a house, buyers can run four checks:

• Pull the current assessment record, not just the listing sheet
• Confirm who owns and occupies the property as of January 1, because that date governs eligibility
• Separate the bill by city, county, school system and any special district that applies
• Build an estimate from the home being bought and the buyer’s own situation, not the seller’s old bill

What Should Atlanta Homeowners Check on an Assessment Notice?

The assessment notice is not a tax bill. It is the county’s estimate of a property’s fair market value and assessed value, and the final bill can still change once each taxing authority sets its rate. It deserves more than the ten seconds most owners give it.

Georgia gives owners 45 days from the date on the notice to file a written appeal, and a missed window means no appeal for that year. Timing matters in 2026: Fulton County mailed notices in mid-June, putting most deadlines around July 31, and DeKalb County’s notices carried a July 13 deadline. For most owners, the 2026 window has closed. The next one opens with the 2027 notice, and because the cap compounds from a base year, an accurate value is worth the effort. The date printed on the notice controls.

Other checks worth making:

• Confirm the homestead exemption is still on file and tied to the correct address, especially after a refinance or a deed change
• Compare the assessed value with real comparable sales nearby, not with how much the increase feels
• Remember that major additions and renovations can add new assessed value to the base

One more number to clear up. Georgia did raise its homestead exemption from $21,500 to $50,000 this year, but that change (HB 1024, effective July 1, 2026) applies to bankruptcy and estate law, protecting home equity from creditors. It is not a $50,000 property tax exemption.

Does Property Tax Change When to Buy in Atlanta?

Not as neatly as the headlines suggest. Buying before the end of 2026 does not automatically lock a purchase price in as a permanent 2027 baseline. For a newly qualifying homeowner the baseline generally comes from the prior tax year’s assessed value, and the outcome depends on when the home was bought, when the owner moved in and when the exemption was filed.

Buying inside the City of Atlanta gives access to the local 2.6% protection over time, but that is only the city’s portion. County and school rates still differ by address, so a city address does not guarantee a lower total bill than a suburban one. Comparing Fulton and DeKalb means comparing the current rate for each authority, not last year’s example.

The payment side of the decision moved this week. Freddie Mac’s 30-year fixed average reached 7.28% on October 1, 2026, up from 7.03% a week earlier and the highest since November 2023. Inventory is still above last year’s level, up 9.1% in July by Homes.com’s count and 3% in August by Georgia MLS’s, while Georgia MLS shows pending sales down 28.9% year over year. Valerie Gonzalez’s read is that sellers who list in the fall tend to be more serious about closing, which gives a prepared buyer room to work.

From Valerie Gonzalez, Vesta Consulting Group

“The seller’s bill reflects the seller’s history with the property, and it doesn’t tell you what your bill will look like. Your purchase price matters quite a bit, but there isn’t an instant reset at the closing table.

I wouldn’t panic when you see your assessment notice, but I also wouldn’t ignore it. Spending a few extra minutes with it can save you a much bigger problem later.

If you’re deciding whether to buy now or wait, I’d rather you make that decision with the right numbers in front of you than sit on the sidelines because the headlines are confusing.”

Watch the Full Video

Valerie walks through each layer of the bill, the assessment reset trap, and what to check before making an offer. She also points to a companion video on the projects reshaping Atlanta’s core.

Frequently Asked Questions

What is HB 581 in Georgia? HB 581 is a 2024 Georgia law, approved by voters as Amendment 1, that created a statewide floating homestead exemption effective January 1, 2025. It limits growth in the taxable assessed value of a homesteaded primary residence to the rate of inflation. It is a cap, not a freeze.

What is Georgia’s HOME Act and when does it start? The HOME Act (Senate Bill 33) was signed by Gov. Kemp on May 11, 2026. Starting with the 2027 tax year, it makes the inflation-based homestead cap mandatory for every city, county, consolidated government and school district, ending the opt-out HB 581 allowed.

Did Atlanta or Fulton County opt out of HB 581? It depends on the authority. The City of Atlanta, Atlanta Public Schools and Fulton County Schools opted out in early 2025. The Fulton County government opted in. The City of Atlanta kept its own base freeze exemption, which caps annual growth in taxable assessment at 2.6%.

Does the HOME Act cap my property tax bill? No. It caps growth in a homestead’s taxable assessed value. A city, county or school district can still raise its millage rate, so a bill can rise even when the taxable value does not. It also applies only to a primary residence, not to second homes or rentals.

Does a seller’s homestead exemption transfer to the buyer? No. A homestead exemption stays with the owner who filed it, except in a narrow situation involving a surviving spouse. A buyer must own and occupy the home as of January 1 and file their own application by April 1.

How long do I have to appeal my Atlanta property tax assessment? Georgia gives owners 45 days from the date printed on the assessment notice. In 2026, most Fulton County deadlines fell around July 31 and DeKalb County’s was July 13, so the window has closed for most owners this year.

Is Georgia’s homestead exemption now $50,000? Only for bankruptcy. HB 1024 raised the bankruptcy homestead exemption from $21,500 to $50,000 for an individual effective July 1, 2026. It protects home equity from creditors and does not reduce property taxes.

Should I buy a home before the end of 2026 for the property tax cap? Buying in 2026 does not automatically lock your purchase price in as a permanent baseline. Your starting point generally depends on the prior year’s assessed value, when you closed, when you moved in and when you filed your exemption.

Find Out Which Taxing Authorities Apply to an Address

Which city, county, school system and special district tax a specific address, and whether the seller’s protection will transfer (it generally will not), is the kind of detail our team works through with buyers before an offer is written. Confirm any figures with the county tax assessor for the property in question.

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