Property Tax
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Understanding property taxes.

Property tax is an annual tax levied by your local government based on the assessed value of your home. It funds essential public services like schools, roads, fire departments, and law enforcement. Understanding how property tax works helps you budget for homeownership and avoid surprises at closing and beyond.

How property tax works

Your county or municipality sets a tax rate (sometimes called a mill rate) and multiplies it by your property's assessed value to determine your annual tax bill. The formula is straightforward: annual tax = assessed value x tax rate. If your home is assessed at $400,000 and your local rate is 1.1%, you owe $4,400 per year. Most homeowners with a mortgage pay property tax monthly through an escrow account managed by their lender.

Assessed value vs. market value

Your property's assessed value is not always the same as its market value. Many counties assess property at a fraction of market value — for example, at 80% or 90%. Some states reassess annually, while others only reassess when a property changes hands or at set intervals. Understanding the difference between assessed and market value is critical because it directly impacts your tax bill. If you believe your assessment is too high, you have the right to appeal. Knowing your loan-to-value ratio also helps you understand your overall financial position.

Homestead and other exemptions

Most states offer a homestead exemption that reduces the taxable value of your primary residence. Florida offers a $50,000 exemption, Texas offers $100,000 for school district taxes, and many other states have their own programs. Additional exemptions may be available for seniors, veterans, disabled individuals, and low-income homeowners. You typically need to apply with your county assessor and prove the property is your primary residence. These exemptions can save hundreds or thousands of dollars per year.

How to appeal your property tax assessment

If you believe your home is over-assessed, you can file a formal appeal. Start by reviewing your assessment notice for factual errors — wrong square footage, lot size, number of bedrooms, or property features. Then gather comparable sales data from recently sold homes in your area that support a lower value. File your appeal before the deadline (usually 30-90 days after the notice) with your county assessor or board of equalization. Many homeowners successfully reduce their assessed value by 5-15%, saving hundreds annually. First-time home buyers should pay close attention to the assessed value when purchasing.

Why property taxes vary so much by state

Property tax rates vary dramatically across the United States because they are set at the local level — by counties, municipalities, and school districts. States without income tax (like Texas and New Hampshire) tend to rely more heavily on property taxes to fund public services. States with high income taxes (like Hawaii) often have very low property tax rates. Within a single state, rates can vary significantly from county to county based on local budgets and property values.

What do property taxes pay for?

Property taxes are the primary funding source for local government services. Your tax dollars fund public schools (typically the largest portion — 40-60% of the total bill), police and fire departments, road maintenance and infrastructure, parks and recreation, libraries, water and sewer systems, and local government operations. The exact allocation varies by municipality, but understanding where the money goes helps contextualize why rates differ so much between locations.

How property taxes are calculated: step by step

The actual calculation involves several steps that most homeowners don't see:

1. Market value determination: Your county assessor estimates your home's fair market value based on comparable sales, property condition, and local factors.
2. Assessment ratio applied: Many jurisdictions tax only a percentage of market value. If your home is worth $400,000 and the assessment ratio is 85%, your assessed value is $340,000.
3. Exemptions subtracted: Homestead, senior, veteran, or disability exemptions reduce the taxable value further.
4. Millage rate applied: The local tax rate (often expressed in "mills" — 1 mill = $1 per $1,000 of taxable value) is applied to your taxable value.
5. Special assessments added: Additional levies for specific projects (road improvements, water infrastructure) may be added separately.

Property tax and your mortgage payment

Most mortgage lenders collect property taxes as part of your monthly payment through an escrow account. Your lender holds 1/12 of the annual tax bill each month, then pays the county on your behalf when taxes are due. This is why your total monthly mortgage payment includes principal, interest, taxes, and insurance (PITI). If your property is reassessed at a higher value, your escrow payment increases — even if your mortgage rate is fixed. Understanding closing costs also helps, as prepaid property taxes are a common closing expense.

Can I deduct property taxes on my federal return?

Yes — if you itemize deductions. The Tax Cuts and Jobs Act capped the state and local tax (SALT) deduction at $10,000 per year ($5,000 for married filing separately). This includes state income tax (or sales tax) plus property taxes combined. For homeowners in high-tax states like New Jersey, New York, or California, this cap means you may not be able to deduct the full amount. See our capital gains tax calculator for related tax considerations when selling.

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Everything you need to understand property taxes and homeownership costs.

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