Cobb County tax records are public and free to search online through the Cobb County Tax Commissioner’s qPublic portal, where you can pull up any parcel by owner name, street address, or parcel number and see the assessed value, millage rates, exemptions, and whether the bill is paid or past due.
Searching the Records Online
The qPublic platform is the main search tool. Three search methods work: owner name, street address, or parcel number. The parcel number is the most reliable because the Cobb County Board of Tax Assessors assigns a unique one to every tract of land. You’ll find yours on a prior tax bill or on your recorded deed.
Run the search, click your result, and the detail page opens with the current year’s bill, prior payment history, and assessment information. A PDF of the bill is available to download if you need proof of payment for a lender or agency. Cobb County also runs a separate GIS-based property search from its main county website that pairs tax information with map data, useful if you only know a street address or want to see neighboring parcels.
What the Record Actually Shows
A Cobb County tax record has a few core pieces, and reading them in order helps the rest make sense.
The fair market value is the Board of Tax Assessors’ estimate of what the property would sell for in an open-market transaction. Georgia law sets the assessed value at exactly 40% of that fair market value, and the assessed value is the figure your tax is actually calculated from.1Department of Revenue. Property Tax Valuation
Below the value, the record lists the millage rates charged by each taxing authority covering the property. Rates vary by district. The 2025 combined county rate for unincorporated Cobb County (District 9) was 30.13 mills; properties inside the Cumberland Special Services District paid 32.58 mills; properties in a Community Improvement District could land above 35 mills.2Cobb County Tax Commissioner. 2025 Millage Rates School taxes are assessed separately and add on top. Each authority gets its own line so you can see where the money goes.
Finally, the record shows any exemptions applied and the current payment status. A homestead exemption reduces the taxable value shown on the bill. An outstanding balance appears with any penalties and interest already accrued.
Paying the Bill
Cobb County accepts property tax payments through several channels.3Cobb County Tax Commissioner. Property Overview
- Online through the county’s payment portal using e-check, Visa, Mastercard, Discover, American Express, or PayPal. E-check carries no convenience fee; card payments do.
- By mail, with a check or money order payable to the Cobb County Tax Commissioner at P.O. Box 100127, Marietta, GA 30061. Payments must be postmarked by October 15, and the county does not accept metered or kiosk postmarks as proof of timely mailing.
- In person at the Property Tax Division at 736 Whitlock Ave. in Marietta, the East Cobb Office at 4400 Lower Roswell Rd. in Marietta, or the South Cobb Government Service Center at 4700 Austell Rd. in Austell.
- By phone through the automated system at 1-866-PAY-COBB (1-866-729-2622), with processing fees depending on payment method.
If you want a physical copy of the record rather than making a payment, the Property Tax Division at 736 Whitlock Ave. handles those requests in person, and you can also submit a written request by mail to the same P.O. Box.4Cobb County Georgia. Tax Commissioners Office Expect nominal per-page fees for printed copies.
Deadlines and Late Penalties
Bills go out by August 15 and are due October 15. There is no grace period. A payment made after October 15 is late and triggers an immediate 5% penalty on the unpaid amount, plus interest that accrues monthly.3Cobb County Tax Commissioner. Property Overview
Georgia law escalates the penalty the longer the balance sits. After the initial 5%, another 5% is imposed every 120 days on any remaining balance, with total penalties capped at 20% of the original tax. Interest keeps running on top the whole time.5FindLaw. Georgia Code Title 48 Revenue and Taxation 48-2-44
Exemptions on the Record
Homestead exemptions reduce the taxable value of your primary residence and show up on the record as a reduction before the tax is calculated. The application deadline is April 1. Missing it waives the exemption for that entire tax year with no exceptions.6Cobb County, GA. Application for Cobb County Homestead Exemption Once approved, it renews automatically as long as you still own and live in the home.
Cobb offers several additional exemptions worth checking against your record.7Cobb County Tax Commissioner. Exemptions – Property Taxes If you turn 62 by January 1 of the tax year, you can claim an exemption from school general and school bond taxes with proof of age. At 65, a $4,000 exemption on state, county bond, and fire district taxes becomes available if your annual net income (including a spouse’s) does not exceed $10,000, with Social Security and retirement income excluded from that calculation. A $22,000 disability exemption applies on all tax categories except the state portion for owners who are permanently disabled and unable to work, with a $12,000 net income cap (disability benefits excluded) and a doctor’s certificate required.
Every exemption requires that you own the home and use it as your primary residence as of January 1 of the tax year. If you rent the property out or move, you’re expected to notify the Tax Commissioner’s Office.
Appealing the Assessment
If the record shows a value you think is too high, you have 45 days from the date the assessment notice was mailed to appeal.8FindLaw. Georgia Code Title 48 Revenue and Taxation 48-5-311 That window is firm. An appeal filed on day 46 is rejected no matter how strong the case.
Use form PT-311A and submit it directly to the Cobb County Board of Tax Assessors, not to the Georgia Department of Revenue.9Georgia Department of Revenue. PT-311A Appeal of Assessment Form The form asks you to pick a method of appeal. If the local board has adopted a policy for electronic submissions, email may be an option; otherwise, mail or hand-deliver.
Evidence carries the appeal. Recent comparable sales in your neighborhood, a private appraisal, or documentation of damage affecting value all help. Disagreement without supporting data rarely moves the number. While the appeal is pending, you still owe the tax by October 15; if the appeal lowers the assessment, the county issues a refund for the overpayment.
What Happens if the Record Shows Delinquency
Unpaid taxes still owed after October 15 are subject to levy and eventual tax sale. Cobb County does not sell tax liens. It sells the property itself at public auction.10Cobb County Tax Commissioner. Tax Sales
If a property is sold at tax sale, Georgia law gives the owner 12 months from the sale date to redeem it, or any time after the sale until the purchaser forecloses the redemption right.11Justia Law. Georgia Code 48-4-40 – Persons Entitled to Redeem Land Redemption means repaying the full amount the buyer paid at the sale, plus any taxes the buyer paid afterward, plus a 20% premium if you redeem within the first year, with an additional 10% premium for each year or partial year after that.12Justia Law. Georgia Code 48-4-42 – Amount Payable for Redemption After the first 12 months, the purchaser can serve certified-mail notice to permanently cut off redemption rights, leaving only a short window to act before the property is lost.