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Cobb County Property Tax Appeal Guide 2026
6 min read
Cobb’s mix of established suburbs and redevelopment pockets means comparable selection matters. Your goal is to show assessors better market evidence than the mass model used for your notice.
Deadlines and filing
Watch the date on your notice—usually about 45 days to file PT-311A with the office your letter specifies. Keep proof of mailing or delivery.
Marietta-area comps
Stay inside your school cluster and price band when possible. Pair resales with similar vintage; new construction comps rarely help unless your home matches that product.
BOE preparation
Judges of value respond to maps, adjustments, and photos of deferred maintenance. Summarize why each comp is more like your home than the county’s implied comparables.
Run a Cobb savings check and export evidence you can take to a hearing.