Property Tax Guide 2026
Property tax is an annual tax levied by local governments — counties, cities, school districts, and special districts — on the value of real estate you own. It's typically the largest source of local government revenue, funding schools, fire departments, roads, and other public services. Understanding how it's calculated can help you budget accurately and potentially reduce your bill.
How Property Tax Is Calculated
Property tax involves three key variables:
- Market Value — What your property would sell for in an arm's-length transaction, as determined by your local assessor.
- Assessment Ratio — The percentage of market value that's used as the taxable base. Some states assess at 100% of market value; others use 60%, 80%, or other ratios.
- Mill Rate — The tax rate expressed in mills (one mill = $1 per $1,000 of assessed value). A 20-mill rate equals 2% of assessed value.
Formula: Annual Tax = (Market Value × Assessment Ratio − Exemptions) × Mill Rate ÷ 1,000
Example: Home worth $400,000. Assessment ratio: 80%. Mill rate: 20. No exemptions.
Assessed value = $400,000 × 80% = $320,000
Annual tax = $320,000 × 20 ÷ 1,000 = $6,400
Average Property Tax Rates by State (2026)
| State | Avg. Effective Rate | Median Annual Tax |
|---|---|---|
| New Jersey | 2.23% | ~$9,300 |
| Illinois | 2.08% | ~$5,600 |
| Connecticut | 2.06% | ~$6,200 |
| New Hampshire | 1.89% | ~$6,100 |
| Vermont | 1.83% | ~$5,100 |
| Texas | 1.68% | ~$4,100 |
| New York | 1.62% | ~$5,800 |
| California | 0.76% | ~$4,800 |
| Hawaii | 0.32% | ~$2,100 |
| Alabama | 0.41% | ~$700 |
Property Tax Exemptions
Most jurisdictions offer exemptions that reduce your taxable assessed value:
- Homestead exemption: The most common. Reduces assessed value for your primary residence, typically $25,000–$100,000. Florida offers a $50,000 homestead exemption.
- Senior citizen exemption: Many states offer reductions for homeowners above a certain age (usually 65+), often income-tested.
- Disability exemption: Available for disabled veterans and civilians in most states.
- Veterans exemption: Many jurisdictions exempt or reduce property taxes for veterans, especially those with service-related disabilities.
- Agricultural exemption: Land actively used for farming may qualify for lower agricultural assessment rates.
Property Tax Assessment Process
Your local assessor (or assessment office) determines the market value of your property, typically through:
- Mass appraisal: Computer-assisted mass appraisal (CAMA) using sales data from comparable properties, property characteristics, and statistical models.
- Physical inspection: Periodic on-site inspections to update property records for improvements or deterioration.
- Market sales: Actual sale prices in your area drive assessed values through comparable sales analysis.
Reassessments happen on different schedules: annually in some states, every 2–5 years in others. Significant market movements between assessments can mean your property's market value and assessed value diverge substantially.
How to Appeal Your Property Tax Assessment
If you believe your assessment is too high — meaning your property is overvalued relative to what it would actually sell for — you can appeal:
- Review your assessment notice: Check the details for errors (wrong square footage, bedroom count, lot size).
- Research comparable sales: Find 3–5 recent sales of similar properties in your area. If they sold for less than your assessed value, you have grounds to appeal.
- File the appeal: Submit to your local assessor's office or assessment review board within the deadline (typically 30–90 days after receiving your assessment).
- Present evidence: Bring comps, photos, your own appraisal, or documentation of needed repairs that affect value.
- Escalate if needed: If the local board denies your appeal, most states allow you to escalate to a state board or tax court.
Studies suggest that 20–40% of properties are over-assessed, and the majority of homeowners who appeal successfully reduce their assessment. The process is free and typically takes a few hours of preparation.
Property Tax and Your Mortgage
If you have a mortgage, your lender likely collects property taxes via an escrow account as part of your monthly payment. Each month you pay roughly 1/12 of your annual property tax (plus homeowners insurance) into escrow. When taxes are due (often twice a year), your lender pays from escrow. Check your annual escrow statement for accuracy — assessment increases mean your monthly payment will rise at the next annual escrow review.