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 loads instantly in the page, so you'll see the tax change as you type, and nothing you enter is saved or sent anywhere.

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 your inputs stay private. 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.

Take the home's taxable value and multiply it by the local rate. Start with the assessed value your county sets, apply the assessment ratio if only part of the value is taxed, subtract any exemption you qualify for, then multiply by the rate. Say a home is assessed at $350,000, taxed on 80 percent of that with a $25,000 exemption at a 1.2 percent rate: the taxable value is $255,000, so the yearly tax works out to about $3,060. The calculator does that math the second you type your own numbers in.

Work out the yearly tax first, then divide by twelve. The yearly figure is your taxable value times the rate, and one twelfth of that is the monthly amount, which is usually what your mortgage servicer collects into escrow each month. A $300,000 home taxed at 1 percent owes $3,000 a year, so $250 a month. This tool shows the monthly number right next to the yearly one, so you don't have to divide it yourself.