Fulton County Property Tax Appeal Deadline: Your 45-Day Window

Of all the things that determine whether you can lower your Fulton County property taxes this year, the most decisive is also the simplest: the date. The appeal process is forgiving in a lot of ways — you don't need a lawyer, you don't need all your evidence up front — but it is completely unforgiving about the deadline.

Here's exactly how the 45-day window works, why it trips people up, and what to do if the clock is already running.

The rule: 45 days from your notice date

Under Georgia law, once the county mails your Annual Notice of Assessment, you have 45 days from the date printed on that notice to file an appeal. That date — not the postmark you remember, not the day it arrived, not the day you finally opened it — is the start of the clock.

This is the evergreen rule worth memorizing: 45 days from the date on your notice. Everything else (the mid-June mailing, the late-July deadline) is just this year's version of that same rule.

This year's dates as an example

Fulton County typically mails notices in mid-June. In 2026, notices went out around June 16, which puts the appeal deadline at roughly July 31. Those specific dates shift a little year to year, so treat them as an illustration, not gospel — but the shape is the same every summer: notice in June, deadline in late July.

Why so many people miss it

The deadline is short and the timing is cruel. Notices land in the middle of summer — graduations, vacations, camp pickups — and an envelope from the tax assessor is easy to set aside. By the time it gets real attention, two or three of the 45 days are often already gone, and sometimes the whole window has closed.

The other trap is assuming you have to wait until your evidence is perfect before filing. You don't. The appeal itself is a relatively simple act; the evidence can be developed after it's filed. The deadline is for filing, not for finishing your case.

What happens if you miss it

If the 45 days pass without an appeal, you generally lose the right to challenge that year's value. The assessment stands, your tax bill is calculated on it, and your next chance comes the following year when a new notice is issued. There's no partial credit for a strong case filed late.

That's also why missing the deadline is so costly in Georgia specifically. Because of the 299(c) freeze, a win doesn't just lower one year — it can lock a reduced value for three. Miss the window and you don't just lose this year's savings; you lose the three-year head start a win would have given you.

What to do right now

1. Find your notice and read the date. Count 45 days forward. That's your wall.
2. Check whether you're over-assessed. Compare your FMV to recent nearby sales, or to what you recently paid for the home.
3. If you have a case, file before the deadline. You can keep building evidence after.
4. If you're not sure, get a fast read. That's exactly what our free check is for — it pulls your real number and tells you, honestly, whether it's worth filing.

After you file: the timeline ahead

Filing on time gets you in the door; it doesn't end the process. The Board of Assessors reviews your appeal and may revise the value. If it's not resolved on paper, you get a hearing before the Board of Equalization. The whole thing usually takes a few months from filing to resolution. The full walkthrough is in our step-by-step Fulton County appeal guide.

The honest bottom line

The deadline is the one part of this process with no flexibility, so it's the one part worth acting on immediately. You don't need to have your case fully built — you need to know whether you have one, and you need to file before the 45 days run out. Check your number, and if it's genuinely too high, don't let the calendar make the decision for you.