How the Real Property Tax Is Computed
The amount of DC property tax due is determined by dividing the assessed value of the property by $100, then multiplying that amount by the rate for the class associated with the property.
For example, assume your property is classified as Class 1, which means your tax rate is $0.85, and your house is assessed at $100,000. To determine the tax, divide $100,000 by 100. That amount is $1,000. Then multiply $0.85 by $1,000. Your annual tax is $850 (before the homestead deduction, senior citizen deduction, and/or trash credits).
If your property is classified as Class 2, and your property is assessed at a total value of $3 million or less, then your tax rate is $1.65. If your property is, again, assessed at $100,000, divide $100,000 by 100. That amount is $1,000. Then multiply $1.65 by $1,000. Your annual tax is $1,650.
If your Class 2 property is assessed at $3.5 million, however, your tax is computed by a split rate of $1.65 for $3 million of the property assessment and $1.85 for the balance ($500,000): Divide $3 million by 100. That amount is $30,000. Multiply $1.65 by $30,000. That result is $49,500, which is the tax on $3 million of the total assessment. The balance of the your total assessment, $500,000, is divided by 100. That amount is $5,000. Multiply $1.85 by $5,000. That result is $9,250. Your total annual tax is the sum of the tax on $3 million ($49,500) and the tax on the balance of $500,000 ($9,250), which totals $58,750.