Georgia Property Tax 2026: 40% Assessment, Homestead Exemptions & the New HOME Act Cap

How Georgia Property Tax Works in 2026

Georgia levies no state-level property tax — county governments, cities, and school districts each set their own millage rates and collect property tax locally. Property is assessed at 40% of fair market value statewide (not 100%, unlike many other states), and the statewide average effective rate — tax as a share of actual home value — is approximately 0.79% according to the Tax Foundation, below the U.S. average of roughly 1.0%. That average masks enormous local variation: effective rates run from well under 0.5% in some rural counties to well over 1.3% in others.

Georgia has been in the middle of major property tax reform. House Bill 581, approved by voters in a November 2024 statewide referendum, created a floating homestead exemption that caps the growth in a homesteaded property's taxable value to the rate of inflation — but let individual counties, cities, and school districts opt out by March 1, 2025. Most metro-Atlanta jurisdictions did opt out, creating a county-by-county patchwork. On May 11, 2026, Governor Brian Kemp signed the HOME Act (Senate Bill 33), which makes that inflation cap mandatory for all local governments statewide, with no opt-out, starting in 2027. This guide explains the 40% assessment ratio, the standard and floating homestead exemptions, what HB 581 and SB 33 actually change and when, how county rates compare, and a worked example for a home in Fulton County.

The 40% Assessment Ratio: Georgia's Foundation

Unlike states that assess property at or near 100% of market value, Georgia law (O.C.G.A. §48-5-7) sets the assessment ratio at 40% of fair market value for most property, including residential homesteads. This means a home appraised at $400,000 has an assessed value of $160,000, and all local millage rates are then applied to that $160,000 assessed figure, not the full $400,000 market value.

Why This Matters When Comparing Millage Rates

Because Georgia's assessed value is only 40% of market value, its nominal millage rates (expressed per $1,000 of assessed value, or in "mills") look higher in isolation than they would in a 100%-assessment state raising the same revenue. A combined millage of 30 mills in Georgia, applied to 40% assessed value, produces the same effective rate as roughly 12 mills applied to full market value. Always convert to an effective rate (or divide by 1,000 and multiply by 0.40) before comparing Georgia's millage to another state's.

County Boards of Assessors and County Boards of Equalization

Each of Georgia's 159 counties has its own county board of tax assessors responsible for appraising property annually. If a county's overall assessment ratio drifts too far from the mandated 40%, the state Department of Revenue can require adjustments. Property owners who disagree with their assessed value can appeal to their county's Board of Equalization.

Homestead Exemptions: Standard, Floating, and Senior

Georgia offers several layers of homestead exemption for owner-occupied primary residences, and understanding which apply to your county requires checking local rules.

The Standard $2,000 Homestead Exemption

Every Georgia resident who owns and occupies their home as a primary residence may claim a $2,000 exemption from county and school taxes, applied against the 40%-assessed value (not the full market value). This exemption does not apply to school taxes levied by municipalities, or to millage dedicated to paying interest on or retiring bonded debt. On a $100,000 home, this reduces the taxable base from $40,000 (40% assessed) to $38,000.

Local Homestead Exemptions Beyond the Standard

Many individual counties, cities, and school districts have enacted their own local homestead exemptions, often significantly larger than the $2,000 state minimum — some metro-Atlanta jurisdictions offer local exemptions worth many thousands of dollars, or percentage-based reductions. These are set by local ordinance or state legislation specific to that jurisdiction, so the benefit varies enormously by where you live. Check with your county tax assessor's office for what's available locally.

Floating (Senior) Exemption for 62+

Residents aged 62 or older with combined household income (including spouse) not exceeding $30,000 may qualify for a floating, inflation-protected homestead exemption at the county level: if their home's appraised value increases by more than $10,000 in a given year, the exemption grows to offset that increase, effectively freezing their taxable value's growth. Income limits and exact mechanics can vary somewhat by county, since some counties have their own locally-legislated senior exemptions with different thresholds and benefit levels — always confirm specifics with your county tax commissioner's office.

Applying

Homestead exemption applications are filed with your county tax assessor's office or tax commissioner, generally by April 1 of the tax year for which you're claiming it, and once granted, most exemptions continue automatically each year without needing to reapply — unless your eligibility changes (you sell, move, or stop using it as your primary residence).

HB 581: The 2024 Floating Homestead Exemption and the Opt-Out Patchwork

In November 2024, Georgia voters approved a statewide constitutional amendment via House Bill 581, creating a new floating homestead exemption effective for the 2025 tax year: for homesteaded property, the taxable assessed value could not grow faster than the rate of inflation, year over year, protecting homeowners from rapid tax increases driven purely by rising market values.

The Opt-Out Provision — and Who Used It

Unlike a typical statewide mandate, HB 581 as originally passed let counties, cities, and school districts opt out of implementing the inflation cap in their jurisdiction, provided they held three public hearings and passed a formal resolution by the March 1, 2025 deadline. This opt-out mechanism led to a fractured landscape: most of Georgia's major metro-Atlanta counties and school districts — including Fulton, Gwinnett, Cobb, DeKalb, and Chatham County jurisdictions among others — opted out, citing concerns about lost revenue for schools and local services, while many other counties statewide adopted the cap. Statewide, roughly 68% of school districts and 30% of counties chose to opt out.

What This Meant for Homeowners in 2025–2026

If you lived in a county or school district that opted out, your homesteaded property's assessed value was not protected by the inflation cap and could rise with market value as usual (subject only to the standard $2,000 exemption and any local exemptions). If your jurisdiction opted in, your taxable assessed value growth was limited to the inflation rate for that period. This created genuinely different property tax experiences for homeowners with identical homes, depending purely on which side of a county or school district line they lived on.

SB 33 (HOME Act): The Mandatory Statewide Cap Starting 2027

On the final day of Georgia's 2026 legislative session, lawmakers repurposed Senate Bill 33 — originally a hemp regulation bill — to carry a comprehensive property tax reform package known as the Homeownership Opportunity and Market Equalization (HOME) Act. Governor Brian Kemp signed it into law on May 11, 2026.

The Key Change: No More Opt-Out

Unlike HB 581's optional inflation cap, the HOME Act makes the assessment-growth cap mandatory for every county, city, and school district in Georgia, with no ability to opt out — closing the patchwork that HB 581 created. Homestead assessment increases will be capped at the rate of inflation statewide, beginning in 2027.

A New Local Funding Mechanism: LHOST

To help offset the revenue local governments and school districts lose from the mandatory cap, SB 33 creates a new Local Homestead Option Sales Tax (LHOST), which allows local governments to ask voters to approve a local sales tax specifically dedicated to funding homestead exemptions and reducing property tax bills — shifting some of the local revenue base from property tax toward sales tax, at local option.

Legislative Controversy

The bill's path was unusual and drew criticism: because SB 33 originated as a Senate bill carrying what critics characterized as a revenue-raising/reallocating measure, some legislators — including Rep. Scott Holcomb (D-Atlanta) — argued it violated the Georgia Constitution's requirement that revenue bills originate in the House. Governor Kemp signed the bill despite this objection, and as of mid-2026 no court has invalidated it, though the legal question has not been definitively resolved.

What Homeowners Should Expect

For tax years through 2026, your homestead's protection against rapid assessment growth still depends on whether your specific county, city, and school district opted into HB 581's cap. Starting with the 2027 tax year, the HOME Act's mandatory cap applies everywhere in Georgia regardless of prior local opt-out decisions — meaning even homeowners in Fulton, Gwinnett, Cobb, DeKalb, and other jurisdictions that opted out under HB 581 will gain inflation-cap protection going forward.

County Millage Rates and Effective Rates Compared

Because each of Georgia's 159 counties, along with overlapping cities and school districts, sets its own millage independently, effective rates vary substantially statewide. The figures below combine county, school, and (where applicable) city millage into an approximate effective rate, compiled from secondary property-data aggregators rather than a single official statewide per-county ranking.

Approximate Effective Property Tax Rates — Major Georgia Counties (2026)

Why Fulton County's Rate Looks Moderate Despite High Home Values

Fulton County's General Fund millage has held at 8.87 mills for several consecutive years, but the total bill for a typical homeowner combines county, school, and (if inside a city) municipal millage — often totaling somewhere in the range of 30–35 combined mills applied to the 40%-assessed value. Because assessed value is only 40% of market value, this combined nominal millage still produces a moderate effective rate relative to full market value.

Statewide Spread

Beyond the major metro counties, Georgia's statewide effective-rate range is wide — some rural counties (Fannin County among the lowest, at roughly 0.33%) sit far below counties with higher local spending needs or lower average home values relative to service costs (Dougherty County among the higher, above 1.3%). All of these will move toward more uniform inflation-cap protection once SB 33's mandatory cap takes effect in 2027, though the underlying millage rate variation between jurisdictions will remain.

Worked Example: $400,000 Home in Fulton County (Atlanta)

This example uses Fulton County's approximate 2026 combined millage and the standard homestead exemption to show how Georgia's 40% assessment ratio changes the math compared to a 100%-assessment state.

Step 1: Apply the 40% Assessment Ratio

$400,000 fair market value × 40% = $160,000 assessed value

Step 2: Apply the Standard Homestead Exemption

$160,000 − $2,000 standard exemption = $158,000 taxable value (before any additional local exemptions this specific homeowner may also qualify for)

Step 3: Apply an Approximate Combined Millage

Using an illustrative combined county + school + applicable city millage of approximately 32 mills (3.2%) for a Fulton County property (actual combined millage varies by specific city/school district within the county — confirm with your tax commissioner):

$158,000 × 3.2% ≈ $5,056 per year

Comparing to Fulton's Reported Effective Rate

Fulton County's reported approximate effective rate of ~1.10% applied directly to the $400,000 market value gives $400,000 × 1.10% ≈ $4,400/year — in the same general range as the mills-based calculation above, with the gap explained by the specific local exemptions and city/school millage mix for any individual property. Both are legitimate approximations; your actual bill depends on your parcel's specific assessed value, applicable local exemptions, and the exact combined millage for your city and school district within Fulton County.

The HOME Act's Future Effect

Because Fulton County opted out of HB 581's inflation cap through 2026, this homeowner's assessed value could rise with market appreciation each year through 2026 (subject only to the standard exemption). Starting with the 2027 tax year, the mandatory HOME Act cap will limit how much further that assessed value can grow annually, regardless of market appreciation, unless the property changes ownership.