Cobb County property tax calculator 2026
This calculator provides an estimated property tax for Cobb County based on taxable value and a combined local millage rate. Property taxes in Cobb County are ad valorem and depend on assessed value and the millage rates adopted by multiple local jurisdictions.
Estimates only. Results may differ from official tax bills, pay stubs, or filed returns.
Many U.S. counties use multiple local taxing authorities (county, city, school district, special districts). Enter your combined local millage rate as shown on your annual property tax notice.
Estimated property tax
See our research on states with the highest property taxes
Enter the market value to see the estimated annual property tax.
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How it works
Property in Cobb County is valued at fair market value by the county Board of Tax Assessors. For taxation, Georgia applies a uniform assessment ratio, producing a taxable assessed value before exemptions. Local governments adopt millage rates, and the combined local millage rate is applied to the taxable assessed value to estimate the annual property tax.
Examples
If a property has a market value and the applicable assessment ratio is applied, the resulting assessed value is then multiplied by the combined local millage rate. Because millage can include county, school, city, and special district components, the estimated result depends on the rate entered.
Limitations and important notes
The figures shown here represent a non-official estimate derived from user-entered data. Actual property tax bills may differ due to jurisdiction-specific millage rates, voter-approved levies, special districts, and eligibility-based exemptions such as homestead provisions. Parcel-specific assessments, exemptions, and taxing districts applied by the local assessor in Cobb County, Georgia may affect the final property tax amount and are not fully reflected in this estimate.
FAQs
How is property tax calculated in Cobb County?
Tax is based on assessed value derived from market value and multiplied by a combined local millage rate adopted by local jurisdictions.
What is a millage rate?
A millage rate represents the tax per $1,000 of assessed value and is set by local taxing authorities.
Are exemptions included in this estimate?
Exemptions vary by eligibility and are not automatically applied in this estimate.
Will this match my actual tax bill?
No. This calculator provides an estimate, and the actual tax bill may differ based on local rates and exemptions.
Calculations are simplified and for guidance only. Always double-check results and current rules with official sources or a qualified professional before making financial decisions.