Property Tax Estimator 🏛️
The bill that arrives every year, whether you're ready or not.
Many municipalities assess at less than full market value.
About This Calculator
How It Works
Property tax is calculated by multiplying your home's assessed value by the local mill rate — the number of tax dollars collected per $1,000 of assessed value. This calculator takes your home value and either a known mill rate or an effective tax rate percentage, and converts it into an annual tax bill and a monthly equivalent for budgeting purposes. The monthly number is the one to add to your mortgage payment when calculating true housing costs.
The Formula
Annual property tax = assessed_value × (mill_rate / 1000). Mill rate = tax dollars collected per $1,000 of assessed value.
When to Use This
Use this before buying a home to understand the full annual carrying cost — not just the mortgage. Property tax is often the second-largest housing expense after the mortgage itself, and it varies wildly by location. Two identical homes in different municipalities can have tax bills that differ by thousands of dollars per year. Running these numbers is essential for realistic budget comparisons between properties or neighborhoods.
Limitations
This calculator uses the purchase price as a proxy for assessed value, but municipalities often assess properties at a different value than market price — sometimes lower, sometimes higher, depending on when the last assessment was done. Mill rates also change annually as municipal budgets shift. For an accurate tax estimate on a specific property, look up the property on your local municipality's tax database, or ask your real estate agent for the current tax bill.
Example
A $400,000 home at a 1.2% effective tax rate = $4,800/year = $400/month to budget. Factor this into your mortgage math.
Did You Know?
Property tax rates in the US range from 0.27% (Hawaii) to 2.49% (New Jersey). Same home value, wildly different tax bills. Location really is everything.
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Property Tax Is Just One of the Ongoing Costs — Here's the Full Picture
You've just estimated your annual property tax bill. It's probably higher than you expected — property tax is one of those ongoing homeownership costs that doesn't get nearly enough attention during the buying process, alongside home insurance, maintenance reserves, and utility costs.
First-time buyers who focus only on the mortgage payment often find themselves surprised by the true monthly cost of homeownership once property taxes, insurance, and maintenance are factored in. The best time to understand all of this is before you sign — not after.
Our pick: Nolo's Essential Guide to Buying Your First Home by Ilona Bray J.D. & Ann O'Connell
Published by Nolo — the most trusted name in plain-English legal and financial guides for over 50 years — this book covers the complete picture of what it actually costs to own a home beyond the purchase price: property taxes, homeowner's insurance, HOA fees, maintenance reserves, and the legal aspects of the purchase process itself. Written by attorneys in genuinely accessible language. 4.6 stars, paperback, under $25. Particularly useful for anyone who has just discovered that property taxes in their area are higher than they budgeted for.
If you've just seen your property tax estimate and realized there's more to budget for than you thought — this guide covers all of it in one place.
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