Please accept the disclaimer at the bottom of the page before entering the Tax Estimator page ESTIMATES ONLY! The taxes calculated here are estimates only and are based on 2009 millage rates for unincorporated Cobb County. Actual tax will depend on specific circumstances, such as whether or not the property is within a city, has Homestead Exemption, or other exemptions. Further research should be done to determine exact amount of tax. By viewing information on this website, I acknowledge that I understand and agree to these terms. NOTE! Since the Governor's Tax Relief Grant is subject to annual appropriations by the Georgia General Assembly and since the 2009 legislature passed and the Governor signed HB 143 effectively tying the funding for this grant to state budget performance, we are now excluding the grant from the Tax Estimator Calculation.