Cobb County Georgia BOE Hearing Guide (2026)

Cobb BOE hearing guide for Marietta, Vinings, and Kennesaw: 45-day PT-311A at assessor.cobbcounty.gov, 40% assessment, submarket comps.

FAQ

What is the Cobb County property tax appeal deadline?

Generally 45 days from the date on your Annual Notice of Assessment. Cobb prints parcel-specific windows; file PT-311A or complete the online appeal at assessor.cobbcounty.gov before that window closes.

Where do I file a Cobb County assessment appeal?

With the Cobb County Board of Tax Assessors—not cobbtax.org (Tax Commissioner). File online at assessor.cobbcounty.gov (Approve and submit; keep the second confirmation email), mail P.O. Box 649, Marietta, GA 30061-0649, or hand-deliver 736 Whitlock Avenue, Suite 200.

Should I mix Vinings townhome comps with east Cobb single-family sales?

Usually no. Cobb submarkets and building types are different buyer pools. Match city, product type, and phase unless you can document a clear adjustment.

Does Protestly appear at Cobb BOE hearings?

No. Protestly builds a print-ready comparable sales packet for $29.99 that you can attach to PT-311A and present yourself.