| Average Effective Property Tax Rate (US) | ~0.99% (Lincoln Institute of Land Policy, 2023) |
| Highest Effective Rate (State) | New Jersey (~2.2%) (Tax Foundation, 2023) |
| Lowest Effective Rate (State) | Hawaii (~0.29%) (Tax Foundation, 2023) |
| Governing Authority | County / Municipal / School District |
| Payment Frequency | Typically annual or semi-annual |
| Federal Deduction Cap (SALT) | $10,000 per household (IRS, Tax Cuts and Jobs Act 2017) |
How Property Taxes Work
Property taxes are levied by local governments — counties, municipalities, and school districts — and are the primary source of funding for public schools, fire departments, road maintenance, and other community services. Unlike federal income taxes, property taxes are administered almost entirely at the state and local level, which means rates, assessment methods, and exemptions vary significantly from one jurisdiction to another.
The tax you owe is calculated by multiplying your property's assessed value by the applicable mill rate (also called the tax rate). A mill represents $1 of tax per $1,000 of assessed value. For example, a home assessed at $300,000 in a jurisdiction with a 20-mill rate would owe $6,000 per year in property taxes.
| Average Effective Property Tax Rate (US) | ~0.99% (Lincoln Institute of Land Policy, 2023) |
| Highest Effective Rate (State) | New Jersey (~2.2%) (Tax Foundation, 2023) |
| Lowest Effective Rate (State) | Hawaii (~0.29%) (Tax Foundation, 2023) |
| Governing Authority | County / Municipal / School District |
| Payment Frequency | Typically annual or semi-annual |
| Federal Deduction Cap (SALT) | $10,000 per household (IRS, Tax Cuts and Jobs Act 2017) |
Assessments are not always equal to market value. Many jurisdictions assess at a fixed percentage of market value — called the assessment ratio — which can range from as low as 10% in some states to 100% in others. Always check your local assessor's methodology before assuming your assessed value reflects what your home would sell for.
For a broader view of what owning a home costs beyond the mortgage, see the real costs of homeownership.
Assessments, Appeals, and Exemptions
Your local assessor's office is responsible for estimating the value of your property, typically on an annual or multi-year cycle. Assessors use sales comparisons, income approaches (for rental properties), and cost methods to arrive at a value. If you believe your assessment is inaccurate, you generally have the right to appeal — most jurisdictions offer a formal review process with defined deadlines, often within 30–90 days of receiving your assessment notice.
Assessed Value
The dollar value assigned to your property by the local assessor's office for tax purposes. It may differ from market value depending on the jurisdiction's assessment ratio.
Mill Rate
The tax rate expressed as dollars per $1,000 of assessed value. A 15-mill rate equals $15 of tax for every $1,000 of assessed value.
Homestead Exemption
A reduction in assessed value available to homeowners who occupy a property as their primary residence. The amount and eligibility rules vary by state.
Assessment Ratio
The percentage of a property's market value used to calculate its assessed value. For example, a 70% ratio applied to a $400,000 home yields a $280,000 assessed value.
SALT Deduction
State and Local Tax deduction — allows qualifying US taxpayers to deduct property taxes (along with state income or sales taxes) on federal returns, currently capped at $10,000 per household.
Tax Levy
The total amount of property tax revenue a local government needs to raise. The levy is divided across all taxable properties to determine individual bills.
Appealing successfully usually requires evidence: recent comparable sales in your neighborhood, an independent appraisal, or documentation of property condition issues. The appeal process is generally free to initiate at the local level, though some homeowners engage a property tax consultant who works on a contingency basis.
Exemptions can meaningfully reduce your tax burden. Common exemptions in the US include:
- Homestead exemption: Reduces assessed value for a primary residence. Available in most states.
- Senior citizen exemption: Income- or age-based reductions available in many states.
- Veteran exemption: Partial or full exemptions for qualifying veterans and surviving spouses.
- Disability exemption: Available in most states for homeowners with qualifying disabilities.
- Agricultural exemption: Lower assessment for land in active farming use.
Exemptions are not automatic in most states — you must apply through your local assessor or tax authority. Missing the filing deadline often means waiting another full year. If you're budgeting for homeownership overall, the household budgeting guide for US families covers how to account for property taxes alongside other recurring costs.
$3,785
Median Annual US Property Tax Bill
According to the US Census Bureau's American Community Survey, based on owner-occupied housing units.
~65%
Share of Local School Funding from Property Taxes
The Education Commission of the States estimates property taxes fund the majority of local K–12 education expenditures nationwide.
This article is for general informational purposes only and does not constitute tax, legal, or financial advice. Consult a licensed tax professional or your local assessor's office for guidance specific to your situation.