Estimate your annual property tax across all 50 states. Tax Foundation 2026 effective rates & data-driven analysis.
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Enter your home value and state to see estimated annual and monthly tax liability.
Annual Tax
Monthly Payment
Effective Rate
How Property Taxes Are Calculated
Property taxes follow a four-step process that varies by state, county, and local jurisdiction. Understanding this formula is essential for homeowners planning their tax burden.
The Effective Tax Formula
Step-by-Step Breakdown
Step 1: Determine Assessed Value – Tax assessors estimate your property’s market value annually or after a sale. In some states (California, Florida), assessment caps limit how fast this value rises for existing owners. In others (Texas, Indiana), reassessment happens at sale. Assessed value is not always market value.
Step 2: Apply Assessment Ratio – Many states don’t tax 100% of market value. South Carolina assesses owner-occupied homes at 4%; Iowa uses a residential rollback (lower percentage for homesteads). This ratio creates the taxable value.
Step 3: Subtract Exemptions – Homestead exemptions reduce taxable value by a dollar amount or percentage. Senior, veteran, disability, and agricultural exemptions also apply in most states. Missing filing deadlines can cost thousands in forgone relief.
Step 4: Apply Millage Rate – Tax districts (county, school, special district) each levy a millage rate – expressed as mills per $1,000 of taxable value. One mill = $1 of tax per $1,000 of taxable value. Total bill = sum of all applicable district rates.
| Concept | Definition | Example (Texas) |
|---|---|---|
| Market Value | What your home is worth on the open market | $400,000 |
| Assessed Value | Value the assessor uses for tax purposes (often same as market for TX) | $400,000 |
| Homestead Exemption | Reduction available to owner-occupants | Up to $40,000 in many TX counties |
| Taxable Value | Assessed value minus exemptions | $360,000 |
| Tax Rate (Millage) | Combined levy across all taxing units | ~1.40% or 14 mills per $1,000 |
| Annual Tax Bill | Taxable value x tax rate | $5,040 |
Source: Texas Comptroller of Public Accounts, 2026
Why effective rates matter: Millage systems are not comparable across states because assessment ratios differ so widely. Illinois might have a 20-mill levy on 100% of market value, while South Carolina applies 20 mills to only 4% of market value. Effective rates (taxes paid as a % of market value) solve this by standardizing across all assessment systems.
What’s Included in Assessed Value
Tax assessors typically include the land and all permanent structures in assessed value. Improvements (renovations, additions, pools) can trigger reassessment or be valued separately depending on state law.
Included in Assessment
Land; primary dwelling; attached structures (garage, deck); major systems (HVAC, plumbing, roof); built-in appliances; pools; outbuildings used for residential purposes.
Typically Excluded
Personal property (furniture, cars); detached sheds used for storage only; solar panels (in some states); home-based business equipment (rules vary); mobile homes (often taxed under a separate system).
State-Specific Assessment Rules
Many states apply special valuation for agricultural land, forestry, and renewable energy installations. See our state profile pages for details on your property classification and whether improvements trigger immediate reassessment or are deferred to the next reappraisal cycle.
View state property tax profilesThe reassessment question: Some states reassess at every sale (Texas, Indiana); others cap annual increases for continuing owners (California’s Prop 13 caps at 2% per year). This creates large gaps between similar homes if one was purchased decades ago and another sold recently. Always ask the assessor what your taxable value will be post-closing – not what the seller paid.
Effective vs. Nominal Property Tax Rates
Effective rates and millage (statutory rates) can tell very different stories about tax burden. Understanding the distinction is critical for relocation decisions and comparative analysis.
| Effective Rate | Nominal Rate (Millage) | |
|---|---|---|
| Definition | Taxes paid / market value of home | Statutory rate applied to assessed/taxable value |
| Use Case | Cross-state comparisons and buyer planning | Local property tax bills and district budgeting |
| Comparable? | Yes – standardized across assessment systems | No – assessment ratios vary wildly by state |
| Example (TX) | 1.40% on $400k home = $5,600/yr | 14 mills x $360k taxable = $5,040/yr |
Source: Tax Foundation 2026 Property Tax by State & County
Why millage is misleading in comparisons: A state with a 30-mill rate might appear to have lower taxes than a state with a 15-mill rate, but if the first state assesses at 50% of market and the second at 100%, the effective burden is reversed. Effective rates eliminate this confusion.
Federal Tax Deduction Limits & Changes
Property taxes are deductible on federal income tax returns if you itemize, but caps apply and rules change with legislation.
SALT Deduction Cap (2026 Update)
$40,400 annual limit on combined state and local taxes (SALT) for the 2026 tax year, including property tax, sales tax, and income tax. This cap was raised from $10,000 by the One Big Beautiful Bill Act (signed July 2025). The cap is indexed at 1% annual increases through 2029, then reverts to $10,000 in 2030 unless extended by Congress.
The higher cap phases down for high earners: taxpayers with modified adjusted gross income (MAGI) above $500,500 in 2026 see the deduction reduced by 30 cents per dollar of income over that threshold, with a floor at $10,000. Owners in high-tax states (New York, New Jersey, California, Illinois) are meaningfully affected if their household MAGI exceeds the phase-down threshold.
Who Benefits Most from the 2026 Increase?
Itemizers with SALT between $10,000 and $40,400: Can now deduct the full amount instead of being capped at $10,000. This includes many middle-to-upper-income earners in high-tax states who previously lost deductions.
High-income earners (MAGI over $500,500): Benefit partially; the phase-down reduces the deduction, but it does not fall below $10,000 even at very high income levels.
Standard deduction users: Receive no SALT deduction benefit; the standard deduction (~$14,600 single, ~$29,200 married filing jointly in 2026) is often simpler for middle-income households than itemizing.
Renters: Do not pay property tax directly; landlords may factor tax costs into rent.
Investors: Can deduct property taxes on rental and investment property (Schedule E) without regard to any SALT cap, provided the property is held for business or investment purposes.
For 2026, compare the standard deduction to your itemized deductions (property tax + state income + sales taxes, up to the $40,400 cap). A tax professional can model both scenarios to see which saves more given your specific income and state taxes.
States with Highest & Lowest Property Tax Rates
Effective property tax rates vary dramatically across the country, driven by state law, assessment practices, exemption policies, and reliance on property tax for school funding.
| Rank | State (Highest) | Effective Rate | Annual Tax on $300k Home |
|---|---|---|---|
| 1 | Illinois | 1.88% | $5,640 |
| 1 | New Jersey | 1.88% | $5,640 |
| 3 | Connecticut | 1.54% | $4,620 |
| 4 | Vermont | 1.51% | $4,530 |
| 5 | New Hampshire | 1.50% | $4,500 |
Source: Tax Foundation 2026 Property Tax by State and County; Census ACS 2024
| Rank | State (Lowest) | Effective Rate | Annual Tax on $300k Home |
|---|---|---|---|
| 51 | Hawaii | 0.29% | $870 |
| 50 | Alabama | 0.37% | $1,110 |
| 48 | Arizona | 0.48% | $1,440 |
| 48 | Utah | 0.48% | $1,440 |
| 47 | South Carolina | 0.49% | $1,470 |
Source: Tax Foundation 2026 Property Tax by State and County; Census ACS 2024
Major Corridors: TX vs. CA, NY vs. FL
California (0.70%) vs. Texas (1.40%): Texas appears twice as expensive on the statewide average, but California Prop 13 assessment caps can make long-held homes pay far below the average, while recent buyers pay closer to market-value rates. Prop 13 reset sales at market, so a property bought in 2024 may pay roughly the 0.70% effective on its purchase price, while one held since 1980 might pay 0.30%. Always pull the parcel record and ask the assessor for post-sale taxable value.
New York (1.30%) vs. Florida (0.78%): Florida’s homestead assessment caps mean new buyers’ bills often increase sharply post-purchase. New York has no comparable cap, so values rise more predictably. Both states have strong homestead programs, but mechanics differ.
Illinois (1.88%) vs. Indiana (0.76%): A popular Midwest relocation corridor. Annual bill difference on a $400,000 home: ~$4,480 in Illinois vs. ~$3,040 in Indiana – about $1,440/year savings by crossing the state line. This gap attracts Illinois retirees and remote workers to Indiana suburbs.
Compare Your State in Detail
Each of our state property tax profiles includes effective rates, county-by-county breakdowns, major exemptions, assessment caps, and recent legislative changes. Start with your state to see local variations and exemption strategies.
Browse all state property tax profilesCalculator Methodology & Disclaimers
Data Sources
This calculator uses Tax Foundation 2026 Property Taxes by State and County effective rates, based on U.S. Census Bureau American Community Survey 2024 owner-occupied housing data. These are the most current standardized benchmarks available for cross-state comparison.
What This Calculator Does
- Provides a planning estimate based on statewide effective rates
- Accounts for homestead exemptions (if entered)
- Calculates annual and monthly tax liability
- Shows effective rate applied to your home value
What This Calculator Does NOT Account For
- County and local variations: Effective rates are statewide averages; your specific county may be higher or lower
- Assessment caps and Prop 13-style limits: Owned homes may pay far less than estimated if caps apply
- Sale-triggered reassessment: Buying a home often resets taxable value to market; ask the assessor
- Special districts and MUDs: School district levies, water districts, and special taxing units add on top of county rates
- Senior, veteran, or disability exemptions: Additional relief may apply if you qualify
- Agricultural or commercial classifications: Different assessment ratios and exemptions
- Tax appeals and protests: Your actual bill depends on assessed value; overvaluations can be challenged
How to Get an Accurate Estimate
1. Find your county assessor. Every county has an appraisal district (Texas), assessor’s office, or property appraiser. Search “[Your County] Assessor” or visit your county government website.
2. Pull the parcel record. Most assessor sites allow free searches by address or parcel number. This shows current assessed value, exemptions, taxing entities, and recent history.
3. Ask for post-sale valuation. Before closing, call the assessor with the purchase price. They can tell you (estimate or actual) what your taxable value will be after purchase, factoring in assessment caps or reassessment rules.
4. Verify exemptions. Confirm you qualify for homestead, senior, veteran, or other exemptions – and check filing deadlines. Missing a deadline can cost years of savings.
5. Review the tax bill. Get the most recent annual tax statement. Divide total tax by home value to calculate your local effective rate.
Related Tools
State Property Tax Profiles – Detailed guides to each state’s assessment rules, exemptions, and tax planning strategies.
Mortgage Calculator with Property Taxes – Integrate property tax estimates into your monthly mortgage + insurance + tax (PITI) calculation.
Total Cost of Homeownership Calculator – Factor in property tax, insurance, HOA fees, and maintenance.
