Property Tax Calculator

You enter your home value and the tax rate, and it works out the yearly and monthly tax. If your county taxes only part of the value, you can set an assessment ratio, and if you qualify for an exemption you can subtract that too. It then applies the rate to the taxable amount and splits the result into a monthly figure. Everything runs in your browser, so you'll see the tax change as you type, and nothing you enter leaves your device.

Property tax is your taxable value times the tax rate. The county sets an assessed value, sometimes the full market value and sometimes a fraction of it, subtracts any exemptions, then multiplies by the local rate. So a $400,000 home taxed at 1.1 percent of full value owes about $4,400 a year, which is roughly $367 a month. The calculator runs that the moment you type the value and rate, and it'll show the monthly amount alongside.

It's the share of your market value that actually gets taxed. Some places tax the full value, so the ratio is 100 percent, while others assess homes at, say, 80 or even 40 percent of what they'd sell for. A lower ratio means a smaller taxable base and a smaller bill at the same rate. If you're not sure of yours, check your assessment notice or your county assessor, and leave it at 100 percent if your area taxes the full value.

Across the US it's roughly 1.1 percent of a home's value a year, but it swings a lot by state and county. Some low-tax states sit near 0.3 to 0.5 percent, while a few high-tax areas top 2 percent, and rates can differ between neighboring towns. Because of that spread, don't lean on a national average for your own bill. Pull your exact rate, often called a millage rate, from your tax bill or your county website and enter it here.

A mill is one dollar of tax per $1,000 of value, so a millage rate is just the property tax rate written a different way. To turn mills into a percent, divide by 10, so 11 mills is 1.1 percent. If your bill lists the rate in mills, convert it before you type it in here, or simply enter the percent if that's what your statement shows. Either way you're applying the same rate to the same taxable value.

Yes, it's completely free, with no sign-up, and it runs right in your browser, so nothing you enter leaves your device. Type your home value and rate, add an assessment ratio or exemption if they apply, and read the yearly and monthly tax in a tap. Bookmark it for budgeting a home purchase or checking a tax bill, and treat the result as an estimate, since your county has the final say.