Cobb County, GA: homestead & property-tax exemptions
How to claim property-tax exemptions in Cobb County (Marietta area): who qualifies, the deadline, where to file, documents, re-filing and appeals.
Exemptions available
- Cobb County Basic Homestead: $10,000 in the county general and county school general tax categories. [1]
- Cobb County $22,000 Disability: $22,000 in all tax categories except state. You must be disabled on or before January 1 with annual net income (including your spouse's, excluding disability income) no more than $12,000 for the prior year. [1]
- State Senior Age 65: $4,000 in the state, county bond, and fire district categories. Age 65 by January 1, with a $10,000 income limit. [1]
- State Veteran's Disability and State Surviving Spouse exemptions are also listed. [1]
Statewide exemption details: Georgia guide.
Who qualifies
- You must own and occupy the property as your primary residence on January 1, and all applicants' names must appear on the deed. [1]
Deadline
- Submit before the appeal deadline listed on your Notice of Assessment. Late applications waive the exemption for that year. [1]
Where and how to file
- Complete the online application, applying only for exemptions you qualify for. [1]
Documents needed
- Proof of residency: a Georgia driver's license with the property address, and vehicle registration showing taxes paid in Cobb County. [1]
- $22,000 disability exemption: proof of income and a doctor's certificate stating you are disabled, unable to be gainfully employed, and likely to remain so. [1]
Do you need to re-file?
- You must notify the office if you move or sell, begin renting the property, or your eligibility changes. [1]
Appeal deadline
- Georgia rule: written appeal to the Board of Tax Assessors within 45 days of the assessment notice (Form PT-311A). [2]
Not verified yet
- Whether Cobb renews approved exemptions automatically (the page tells you to notify on changes but we didn't find an explicit renewal statement).
- City exemptions for residents of Cobb cities.
Population: 787,538 (July 1, 2024 estimate) [3]
Other Georgia counties
Sources
- Cobb County Tax Commissioner: Exemptions Last checked 2026-10-21
- Georgia Dept. of Revenue: PT-311A Appeal of Assessment Form Last checked 2026-10-21
- U.S. Census Bureau, county population estimates 2020-2024 (co-est2024-alldata.csv) Last checked 2026-10-21