Georgia Homestead Exemption & the HB 581 Floating Cap

If you own the home you live in and you're not claiming a homestead exemption, you are almost certainly leaving money on the table — quietly, every single year. It's the most basic property tax break Georgia offers, and it's the first thing we check. In 2025, the rules got a meaningful upgrade with HB 581's new floating cap. This guide explains both: the exemption you should already have, and the cap that may now sit on top of it.

We'll keep it plain, and we'll be clear about where the answer is "it depends on your jurisdiction" — because with HB 581, in a lot of places, it genuinely does.

What a homestead exemption actually does

In Georgia, your assessed value is 40% of your home's fair market value (FMV), and your tax bill is calculated against that assessed value. A homestead exemption removes a portion of that taxable value before the millage rate is applied — so you're taxed on less.

The catch is in the name: it only applies to your homestead — the home you own and occupy as your primary residence as of January 1 of the tax year. A second home, a rental, or an investment property doesn't qualify. And in most places, the exemption isn't automatic: you have to apply for it once, usually with your county, and it then carries forward year to year as long as you live there.

The kinds of homestead exemptions

Georgia has a baseline statewide homestead exemption, and counties, cities, and school districts often stack additional local exemptions on top. The exact menu varies by where you live, but the common categories are:

• Standard homestead exemption — the basic break available to owner-occupants on their primary residence.
• Senior and age-based exemptions — many jurisdictions offer larger exemptions once you reach a certain age, sometimes with an income test. These can be substantial, so it's worth checking when you (or a parent) hit the qualifying age.
• Disability and veteran exemptions — additional relief for qualifying disabled homeowners and disabled veterans, and certain surviving spouses.
• Local floating exemptions — some places, including the City of Milton, have a longstanding local floating exemption that limits how fast a homestead's taxable value can rise. (More on "floating" below.)

Because the local stack differs so much, the practical move is to look up what your specific county and city offer, then make sure you've claimed everything you qualify for.

What HB 581 changed: the statewide floating cap

HB 581 introduced a statewide floating homestead exemption for Georgia. The idea behind a "floating" exemption is simple: instead of being a fixed dollar amount, the exemption grows as your value grows, so it absorbs increases and limits how fast your taxable value can climb.

Under HB 581, growth in a homestead's taxable value is generally tied to inflation, measured by the Consumer Price Index (CPI). In a hot market where home values jump 15% or 20% in a year, the cap is meant to keep the taxable portion from rising that fast — it can only move with inflation. Over time, in a rising market, that gap can save homesteaded owners real money.

The big catch: opt-outs and "check your county"

Here's where we have to be careful, because the honest answer is "it depends on where you live." HB 581's floating cap was not forced on every jurisdiction. Counties, cities, and school systems were given a window — through early 2025 — to opt out of the statewide floating exemption. Some opted out; others kept it.

That means whether the HB 581 cap applies to your bill depends on the specific decisions your county, your city, and your school district each made. We won't guess at a particular jurisdiction's choice here, because getting it wrong would be worse than useless. The reliable path is to check your county (and city and school district) directly for their HB 581 status.

How the exemption and an appeal fit together

It's worth being precise about how these pieces stack, because they're easy to confuse:

• The fair market value (FMV) is the county's estimate of what your home is worth. An appeal targets this number. If it's too high, that flows straight into a too-high bill.
• The assessed value is 40% of the FMV — the base your taxes are figured on.
• A homestead exemption reduces the taxable value before millage is applied.
• A floating cap (local or HB 581) limits how fast that taxable value grows year to year.

So a homeowner can have a perfectly good exemption and floating cap and still be over-assessed, because the FMV itself was set too high. That's exactly the gap an appeal closes. Win the appeal and you reset the FMV — and in Georgia, a successful appeal also triggers a multi-year freeze on the value, which we cover in our guide to the 3-year property tax freeze.

What to do right now

1. Confirm your homestead exemption is on file. If you're an owner-occupant and it isn't, file for it. New owners especially — you don't inherit it from the seller.
2. Check what local exemptions you qualify for (senior, disability, veteran, local floating) and claim them.
3. Look up HB 581 status for your county, city, and school district so you know whether the statewide floating cap applies to you.
4. Look at the FMV itself. Exemptions and caps don't fix an inflated fair market value — only an appeal does. If your number looks too high, check it before the deadline.

If you live in North Fulton, our Milton property tax appeal guide walks through the local floating exemption and how fast values have climbed in 30004.