Found wrong square footage or rooms on your Georgia county record after filing? Send proof to the assessors in writing, and it goes into your open appeal.
# Wrong Square Footage on Your Georgia County Property Record?
If your Georgia county property record shows the wrong square footage, bedroom count or basement finish and your appeal is already filed, send the correction in writing to the board of tax assessors that has your appeal. Name the parcel and the pending appeal, and attach proof of the right facts.
The correction goes into that appeal as evidence for the assessors to weigh. It isn't a new appeal, and it doesn't reopen or restart the window you had for filing. The chart below lays out the path from spotting the error to a Board of Equalization hearing, if the appeal gets that far.
A correction is evidence in your pending appeal, not a new appeal. What happens next depends on the letter the assessors send back.
Check the facts that describe your home's size and quality: heated square footage, the bedroom and bathroom counts, whether the basement is finished, and any quality grade or condition rating the county shows.
Georgia's rules for county appraisal staff require them to keep a record of each building's characteristics, including "the location, size, actual use, design, construction quality, construction materials, age and observed condition." The same rule (Ga. Comp. R. & Regs. 560-11-10-.09, part of the Department of Revenue's appraisal procedures) tells staff to update that record for "new construction, new parcels, remodeling, demolition, and destruction," so the record is supposed to change when the house does.
These facts feed the value. Cobb County's Tax Assessor's Office lists size, age and condition among what it looks at, along with recent sales of similar properties and location.
The record should describe your house as it stood on January 1 of the tax year. The same rule bases appraisal staff decisions on the property's circumstances on that date, so a basement finished later in the year belongs on the next year's record.
Start with your county's online parcel record, if it has one. For everything the county used, ask the assessors in writing for the records behind your value. O.C.G.A. 48-5-306(d)(1) requires them to provide copies within ten business days, and the copying fee can't exceed 25 cents a page. The same record check is a good first step before any appeal, as our guide to lowering property taxes in Georgia explains.
Send whatever shows the right fact most plainly. Georgia's appeal statute doesn't list the proof assessors must accept, so match each wrong fact with a document an appraiser can check quickly:
Measurements and photos are the evidence Gwinnett's own appraisers collect. The county's Real Property Appraisal page says their visits "can include obtaining exterior measurements and taking photos of the property."
Send the proof now rather than saving it for a hearing. Under O.C.G.A. 48-5-311(e)(4), the assessors' decisions on "questions of factual characteristics of the property under appeal, as opposed to questions of value," are "prima-facie correct" at the Board of Equalization (the county panel that hears appeals). That means the Board starts from the county's version of your square footage and room count until you show it's wrong.
Send it in writing, by a route your county accepts, to the board of tax assessors or the person named on your notice, and keep proof that you sent it. If AppealAlly's Full Service is handling your appeal, forward the proof to us rather than the county and it goes into your case; there's nothing more to gather unless we ask.
If you're sending it yourself, include:
Keep a copy of everything, along with a mailing receipt, a note of when you used a drop box, or the sent email.
The county pages we read list contact routes, not a correction form. Gwinnett's assessor contact page says documents "may be filed by mail or by placing them in the drop box located outside the Assessors' Office at the Gwinnett Justice and Administrative Center in Lawrenceville." Fulton County's 2026 assessment announcement tells owners who believe the information on their notice is inaccurate to "contact the individual identified on the notice for assistance." Cobb's page says you "can also contact the Tax Assessor's office for help." Ask your county whether it has its own correction form, and if it doesn't, put the correction in a letter.
Expect a possible visit. The state's PT-311A appeal form says filing it "will create a review of the county's assessment" and gives notice that "an onsite inspection of the subject property by a member of the county appraisal staff may be performed." In Gwinnett, appraisers knock and introduce themselves before an exterior review, and the county says "there is no requirement for an interior inspection of your property," so for an error inside the house, your photos may be the clearest view the assessors get. Our guide to the PT-311A covers the rest of the form.
The assessors answer with a change notice if they change the value, or a no-change notice if they don't, and each one leads to a different next step.
If the assessors make changes or corrections, Georgia law requires them to notify you in writing, and one of the state's templates for that letter is the PT-306-30E. If you filed the appeal yourself and you're still dissatisfied, Georgia law sets 30 days from the date the change notice was mailed for you to tell the assessors in writing that you're continuing your appeal to the Board of Equalization. The notice prints a "Last date to file a written continuation of appeal," and that printed date governs. The template below marks where that date and the no-action line sit.
Find the printed last date to continue in writing. Agreeing needs no action, but doing nothing is not a signed agreement.
Read the new value, not only the corrected facts. A fixed square footage can still come with a value you disagree with, and a written continuance is how you keep the appeal going.
If you agree with the new value, the state's notice says "no action is required," and your bill for that year will be based on the adjusted value. Doing nothing is not a signed agreement, though, so if you filed the appeal yourself and want the new value agreed in writing, ask the assessors for an agreement signed by both sides. If you and the assessors do sign one, the appeal ends on that date. County wording varies, so read your own notice for what it asks of you.
If you chose the Board of Equalization when you filed (the BOE option on the state's PT-311A form) and the assessors make no change, their no-change notice also sends your appeal on to the Board. You don't file a second appeal.
A correction can also arrive on a separate notice. State law requires the annual assessment notice to be mailed by July 1, but a county can send later notices for corrections and mapping changes. If a later notice arrives, read it for its own printed appeal date.
Sending a correction doesn't restart your original filing window. The 45 days the law sets for filing ran from your assessment notice, and the 30 days on a change notice is a separate clock.
Confirm the dates on your county's letter.
If you filed the appeal yourself and it reaches the Board, bring the correction and its proof, and ask for the county's evidence before the hearing. The written hearing notice tells each side it may request the other's "list of witnesses, documents, or other written evidence." Georgia law requires that request not less than ten days before the hearing, and the other side must provide the information not less than seven days before it. If either side doesn't comply, the statute makes that grounds for a continuance or for excluding the evidence.
The assessors carry the burden of proving their value by a preponderance of the evidence, but on the physical facts the Board starts from the county's record, so bring the same measurements, plans and photos you sent the assessors. For the order of events from filing to a decision, see what happens after you file a Georgia property tax appeal.
Confirm the dates on your county's letter.
This article is general information drawn from public sources: O.C.G.A. 48-5-306 and 48-5-311 (Justia's reproduction of the Georgia Code), the Department of Revenue's appraisal procedures rule (Ga. Comp. R. & Regs. 560-11-10-.09), its PT-311A form and PT-306-30E notice template, and the Gwinnett, Fulton and Cobb county pages linked above, all read September 29, 2026. Georgia law sets the time limits named here (45 days to file, 30 days to continue after a change notice, ten days before a hearing to ask for evidence, and ten business days for records), but any calendar date they produce for your property is estimated, and the date printed on your own notice governs. County practice varies. It isn't legal or tax advice. Check your own dates on your notice and with your county's board of tax assessors.