How does Kennesaw's property tax system create this gap?

Describing a specific gap in Kennesaw's property tax system assumes data this site has not verified, so the more useful answer is how the system actually works: Cobb County assesses fair market value, bills tax on 40 percent of fair market value, and applies a millage rate the county, city and school district each set. Any real difference between two similar homes usually traces back to one having an outdated or unappealed assessment. Ask Joel to compare your specific assessment against recent comparable sales to check for exactly that.