To calculate the tax bill for your home, let’s assume you have a house with a taxable value of $100,000 located in the City of Durham. The City/County combined current tax rate for 2019-2020 in the corporate limits of Durham City is $1.2439 per hundred dollars of assessed value. To calculate the tax bill, multiply the assessed value by the tax rate $1.2439 per hundred dollars of assessed value: $100,000 (Assessed Value) x .012439 (Tax Rate) = $1,243.90 (Tax Bill) taxes for the 2019-20 fiscal year.