Cobb County Tax Commissioner's Office
Carla Jackson, Tax Commissioner • Heather Walker, Chief Deputy • (770) 528-8600
Enter a parcel ID, property address, or owner name to generate an estimated tax bill for the 2026 tax year. Based on 2025 adopted millage rates and assessment data from the Cobb County Board of Tax Assessors.
Notice: This estimator is for county taxes only and is not available for Agricultural or other special classification properties. Certain parcels under active administrative review are not included in this estimator dataset. Assessment data is provided by the Cobb County Board of Tax Assessors. For city tax information, contact your municipal tax office. Need to estimate a new home purchase? Click here.
| Taxing Authority | 40% Assessed Value | − Less Exemption | = Net Tax Value | × Millage3 | = Calculated Tax Value | − HTRG Credit4 | = Estimated Tax |
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This tool provides an estimate for the 2026 tax year ONLY and does not constitute a legal tax bill. Property is assessed at 40% of fair market value pursuant to O.C.G.A. § 48-5-7. Estimates are based on the most recently approved millage rates and assessment data. The actual tax bill you receive may differ.
The Cobb County Tax Commissioner's Office makes every effort to publish the most accurate information possible; however, assessed values and millage rates are subject to change before being finalized for ad valorem tax purposes. No warranties, expressed or implied, are provided for the data herein, its use, or its interpretation. The Tax Commissioner's Office disclaims any responsibility or liability for any direct or indirect damages resulting from the use of this estimate.
This estimator provides data for county taxes only and is not available for Agricultural or other special classification properties. If you reside within city limits, please contact your municipal tax office for official city tax information.
1 Fair market value and 40% assessed value are provided by the Cobb County Board of Tax Assessors (O.C.G.A. § 48-5-7) and reflect the data retrieval date shown above.
2 Homestead exemption status is based on current records maintained by the Cobb County Tax Commissioner's Office and Board of Tax Assessors (O.C.G.A. § 48-5-40 et seq.). You must apply for or request removal of any homestead exemption prior to the appeal deadline indicated on your Notice of Assessment. For questions, contact the Tax Commissioner's Office at (770) 528-8600 or tax@cobbtax.gov.
3 Millage rates used are the 2025 adopted rates. Rates for 2026 may change when officially adopted. View current rates at cobbtax.gov/property/millage_rates.php.
4 The Homeowner's Tax Relief Grant (HTRG) is a credit authorized by the Governor and General Assembly of Georgia (O.C.G.A. § 48-5-2).
† Total includes School General, County General, County Fire, County CID, and County Special Services District where applicable. Does not reflect penalties, interest, delinquent balances, or fees. City taxes are not included — contact your municipal tax office.