Property Tax Calculator — Annual & Monthly Estimate for All 50 States 2026
Your tax bill arrived and the number doesn’t match what you expected. Or you’re buying a home and the listing says “property taxes: $4,200/year” — but you’re not sure if that’s based on the current assessed value or whether your exemptions are already factored in. This property tax calculator shows your estimated annual and monthly tax with your state’s average rate pre-loaded — plus fields for assessment ratio, mill rate, and exemptions that most calculators skip entirely.
A property tax calculator estimates your annual real estate tax by multiplying your home’s assessed value by your local tax rate, then subtracting exemptions. Enter your state to load the average rate automatically, or type your exact county rate for a more precise estimate.
Property Tax Calculator
Annual & monthly tax · Escrow · Mill rate · All 50 US states avg rates — 2026
Enter property value and tax rate to estimate your property taxes
How Property Tax Is Calculated — The Formula Most Calculators Don’t Explain
Market Value vs Assessed Value — The Confusion Point
Every property tax calculation starts with one number: your assessed value. This is not the same as your home’s market value — and the difference can be dramatic depending on your state.
Assessment ratio is the percentage of market value that your local government uses to calculate your tax. Most states assess at 100% of market value — meaning if your home is worth $350,000, your assessed value is $350,000. But some states use fractional assessment:
| State | Assessment Ratio | On $350,000 Home — Assessed At |
|---|---|---|
| Wyoming | 9.5% | $33,250 |
| Louisiana | 10% (residential) | $35,000 |
| South Carolina | 4% (primary) | $14,000 |
| Arkansas | 20% | $70,000 |
| Colorado | 6.76% (residential) | $23,660 |
| Most states | 100% | $350,000 |
This is why comparing property tax rates across states using the headline rate alone is misleading. Wyoming’s high mill rate applies to a 9.5% assessment — the effective tax as a percentage of actual home value is much lower than it looks.
The calculator’s Assessment Ratio field defaults to 100% — correct for most states. Change it only if your state or county uses a fractional assessment system.
The Property Tax Formula
Assessed Value = Market Value × Assessment Ratio
Taxable Value = Assessed Value − Exemptions
Property Tax = Taxable Value × Tax Rate (as decimal)
Or using mills:
Property Tax = Taxable Value × (Mill Rate ÷ 1,000)
Example — $350,000 home, 1.2% tax rate, $25,000 homestead exemption:
- Assessed value: $350,000 × 100% = $350,000
- Taxable value: $350,000 − $25,000 = $325,000
- Annual tax: $325,000 × 0.012 = $3,900
- Monthly escrow: $3,900 ÷ 12 = $325/month
What Is a Mill Rate?
A mill is one-thousandth of a dollar in tax per dollar of assessed value. One mill = $1 in tax per $1,000 of assessed value.
Conversion: 1% tax rate = 10 mills. A 1.2% tax rate equals 12 mills.
Most homeowners see their property tax expressed as a percentage on their annual bill. But some states and counties — particularly in the Northeast and Midwest — publish tax rates in mills. The calculator auto-converts between the two: enter either the percentage or the mill rate and the other field updates automatically.
Practical example:
- Mill rate of 25 mills = 2.5% tax rate
- On $200,000 assessed value: $200,000 × 0.025 = $5,000/year
Your local mill rate is typically the sum of several levies: county tax, municipal tax, school district tax, and any special district charges. Your combined mill rate appears on your property tax bill.
How to Use This Property Tax Calculator
Step 1 — Select Your State
The dropdown loads your state’s average effective property tax rate automatically. This gives you a starting point — the actual rate for your specific county and municipality may be higher or lower than the state average.
For the most accurate property tax calculator estimate by your exact location: search “[your county name] property tax rate” or look up your rate by zip code on your county assessor’s website. Enter that specific rate in the Tax Rate field to override the state average.
Step 2 — Enter Property Value and Assessment Ratio
Enter your home’s market value (current estimated market price, not what you paid). The calculator applies the assessment ratio to determine your assessed value — the taxable base.
Leave the Assessment Ratio at 100% unless your state uses fractional assessment. If you’re unsure, check with your county assessor or look up your state’s standard assessment ratio.
Step 3 — Tax Rate and Mill Rate
The state average loads automatically when you select a state. You can override this with your specific local rate. Enter either the percentage or the mill rate — the calculator converts automatically.
Where to find your exact rate:
- Your most recent property tax bill
- Your county assessor or treasurer’s website
- Your county’s tax collector office
Rates are set by multiple taxing authorities (county, city, school district, special districts) and combined into a single total rate on your bill.
Step 4 — Enter Exemptions
What Is a Homestead Exemption?
A homestead exemption reduces the taxable value of your primary residence. It is one of the most commonly missed tax savings — and one of the most variable across states.
Examples of homestead exemptions:
| State | Homestead Exemption |
|---|---|
| Florida | Up to $50,000 on primary residence |
| Texas | $100,000 off assessed value |
| California | $7,000 assessed value reduction |
| Georgia | $2,000 assessed value reduction |
| Illinois | $10,000 assessed value reduction |
| New York | Varies by county — often $30,000–$50,000 |
Enter the dollar amount your exemption reduces your assessed value — not a percentage. Your county assessor’s office or your previous tax bill will show your exemption amount.
Senior and Veteran Exemptions
Many states offer additional exemptions for homeowners 65+ and qualified veterans:
Senior exemptions: Income-based or age-based reductions in assessed value or tax rate. In Florida, a “Senior Homestead Exemption” adds up to $50,000 for long-term residents over 65 meeting income requirements. In New Jersey, seniors can qualify for the “Senior Freeze” program that caps assessment increases.
Veteran exemptions: Disabled veterans often receive significant exemptions. In Texas, a 100% disabled veteran pays zero property taxes. In California, disabled veterans receive a $196,262 exemption on assessed value (2026 figure). In Florida, total and permanent disability qualifies for full exemption.
Enter the total dollar reduction from these exemptions in the Senior/Veteran field.
Other Exemptions
Some jurisdictions offer additional exemptions: agricultural use exemptions, historical preservation exemptions, green energy exemptions, and disability exemptions outside the veteran category. Enter any additional exemption amounts in the Other field.
Understanding Your Results
Annual Property Tax
Your estimated annual tax bill, calculated as:
(Assessed Value − All Exemptions) × Tax Rate = Annual Tax
This is the amount your county will bill you each year, typically in one or two installments depending on your state.
Monthly Escrow Amount
Your annual tax divided by 12. If your mortgage has an escrow account — which most lenders require when you put less than 20% down — your lender collects this amount monthly alongside your mortgage payment and pays the county on your behalf.
If you pay your taxes directly (no escrow), this is the monthly amount you should set aside to avoid being caught short when the tax bill arrives.
How Property Tax Fits Into Your Total Monthly Housing Cost
Property tax is part of your full PITI payment — Principal, Interest, Taxes, Insurance. Most buyers focus on the mortgage payment and underestimate the tax component. On a $400,000 home in New Jersey at a 2.23% effective rate, property taxes add $743/month to your housing cost — more than many car payments.
Use our Mortgage Calculator to see your full monthly housing cost with property tax, insurance, PMI, and HOA combined.
Next step: Once you have your property tax estimate, enter it into the Mortgage Calculator to see your complete monthly PITI payment — or use the Affordability Calculator to check how local tax rates affect how much home you can actually afford in your target area.
Property Tax Rates by State — 2026 Overview
Property tax rates vary more than almost any other housing cost. The difference between the highest and lowest states is over 2 percentage points of effective tax rate — meaning a $400,000 home can cost anywhere from $448/year (Hawaii) to $8,920/year (New Jersey) in annual property tax. Use this property tax calculator with your specific state rate to see how your location compares.
Highest Property Tax States (Effective Rate)
| State | Effective Rate | Annual Tax on $400K Home |
|---|---|---|
| New Jersey | 2.23% | $8,920 |
| Illinois | 2.08% | $8,320 |
| Connecticut | 1.79% | $7,160 |
| New Hampshire | 1.77% | $7,080 |
| Texas | 1.68% | $6,720 |
| Vermont | 1.59% | $6,360 |
| Wisconsin | 1.51% | $6,040 |
| Nebraska | 1.47% | $5,880 |
Lowest Property Tax States (Effective Rate)
| State | Effective Rate | Annual Tax on $400K Home |
|---|---|---|
| Hawaii | 0.28% | $1,120 |
| Alabama | 0.37% | $1,480 |
| Colorado | 0.49% | $1,960 |
| Nevada | 0.49% | $1,960 |
| Utah | 0.52% | $2,080 |
| South Carolina | 0.53% | $2,120 |
| Wyoming | 0.55% | $2,200 |
| West Virginia | 0.57% | $2,280 |
Texas note: Texas has no state income tax — and funds schools and local government primarily through property taxes. The 1.68% effective rate is significantly higher than states with income taxes. A buyer moving from California (0.76%) to Texas gains no income tax but faces property taxes more than twice as high.
California note: Proposition 13 caps property tax increases at 2% per year for existing owners. This means a home purchased in 1985 for $100,000 may have a very low assessed value — while a neighboring identical home purchased in 2023 for $900,000 has a much higher bill. New buyers in California pay based on their purchase price.
Escrow — How Property Taxes Are Collected Monthly
Most homeowners with a mortgage pay their property taxes through an escrow account managed by their lender. Here’s how it works:
Monthly collection: Your lender adds 1/12th of your estimated annual property tax to your monthly mortgage payment. The funds accumulate in the escrow account.
Annual payment: When your tax bill comes due — typically once or twice a year depending on your state — your lender pays the county directly from your escrow balance.
Escrow cushion: Lenders typically maintain a 2-month cushion in your escrow account to cover unexpected rate increases. This is why your escrow balance never drops to zero.
Annual escrow analysis: Every year your lender recalculates your escrow payment based on current tax and insurance costs. If taxes increased, your monthly payment goes up. If they decreased, you may receive a refund.
If you don’t have escrow: Some homeowners — typically those who own their home outright or have a loan-to-value below 80% — pay property taxes directly. Payment schedules vary by state: Florida bills twice a year, California twice a year (November and February), Texas once a year (due January 31), New York quarterly or semi-annually depending on the county.
Why Property Taxes Change Over Time
Reassessment Cycles
Your assessed value doesn’t update every year in most jurisdictions. Many counties reassess properties every 1–5 years. When reassessment happens, your assessed value jumps to reflect current market conditions — and so does your tax bill.
California’s Proposition 13 is the famous exception: assessments are locked at purchase price and can only increase 2% annually, regardless of market appreciation. This creates enormous disparities between long-term owners and recent buyers.
Mill Rate Changes
Even if your assessed value stays flat, your tax bill can rise if local governments increase their mill rates. School bond measures, infrastructure levies, and service expansions all add to your total mill rate — and therefore your tax bill.
How to Appeal Your Assessment
If you believe your assessed value is higher than your home’s market value, you have the right to appeal. Most counties have a formal appeal process:
- Request your property’s assessment card from the assessor’s office
- Gather comparable sales data for similar homes in your area
- File a formal appeal before your county’s deadline (typically 30–90 days after assessment notices are mailed)
- Present your evidence at an informal hearing with the assessor or a formal appeal board
Successful appeals can reduce your tax bill for multiple years. If your county assessed your $400,000 home at $450,000, a successful appeal to $400,000 saves the full tax rate on $50,000 of assessed value — often $600–$1,000 per year.
Commercial Property Tax
Commercial properties are assessed and taxed differently from residential properties in most jurisdictions. Key differences:
Higher assessment ratios: Many states apply higher assessment ratios to commercial properties than residential. Where residential homes might be assessed at 10% of market value (South Carolina residential), commercial properties in the same county might be assessed at 40%.
Higher effective rates: Many cities set higher mill rates for commercial properties than for owner-occupied residential. Chicago’s commercial rate is substantially higher than its residential rate.
Income approach to valuation: Commercial properties are often assessed based on their income-generating potential rather than comparable sales — making assessments more complex and disputes more common.
For a commercial property estimate, use the calculator with your state’s commercial assessment ratio (which differs from residential in many states) and your county’s commercial mill rate.
Frequently Asked Questions
How is property tax calculated?
Property tax = Assessed Value × Tax Rate (as a decimal). Assessed value is your home’s market value multiplied by your state’s assessment ratio (most states: 100%). Subtract any exemptions from assessed value before applying the rate. The calculator applies this formula automatically using your state’s average rate with the option to enter your exact local rate.
What is a mill rate and how does it relate to my tax rate?
A mill is one-thousandth of a dollar in tax per dollar of assessed value. One mill = $1 per $1,000 of assessed value. The relationship: 1% tax rate = 10 mills. A 1.5% tax rate = 15 mills. The calculator accepts either format and converts automatically — enter whichever appears on your tax bill.
Why is my assessed value different from my home’s market value?
Because your state or county uses an assessment ratio less than 100%. Wyoming assesses residential property at 9.5% of market value. South Carolina assesses primary residences at 4%. Colorado’s residential assessment ratio for 2024–2025 is 6.76%. The calculator’s Assessment Ratio field accounts for this — enter your state’s ratio or leave at 100% if your state assesses at full market value.
What exemptions reduce my property tax?
The most common are homestead exemptions (for primary residence owners), senior exemptions (typically age 65+, often income-tested), and veteran/disabled veteran exemptions. Texas offers a $100,000 homestead exemption. Florida offers up to $50,000. Some states offer 100% exemption for totally and permanently disabled veterans. Check your county assessor’s website for the specific exemptions available in your area.
How does my mortgage escrow collect property taxes?
Your lender divides your annual estimated property tax by 12 and adds this amount to your monthly mortgage payment. The funds accumulate in a dedicated escrow account. When your tax bill arrives, your lender pays it directly. Each year your lender recalculates the required escrow payment based on current tax and insurance costs. If taxes increased, your monthly payment adjusts accordingly.
Can my property taxes go up even if my home value didn’t change?
Yes. Property taxes can increase if your local government raises the mill rate — for school funding, infrastructure bonds, or service expansions — even if your assessed value stays flat. In states with frequent reassessment cycles, a previously stable assessment can also jump when the next full assessment occurs.
What is the most tax-efficient state for property owners?
Hawaii has the lowest effective property tax rate at 0.28% — a $400,000 home costs approximately $1,120/year. Alabama (0.37%), Colorado (0.49%), and Nevada (0.49%) also rank among the lowest. However, low property tax states often offset this with higher income taxes, sales taxes, or lower public services. The full tax burden comparison requires considering all taxes — not just property tax.
Related Calculators
Property tax is one component of your total monthly housing cost. Our Mortgage Calculator combines principal, interest, property tax, insurance, PMI, and HOA into a single monthly payment — showing the true cost of homeownership before you make an offer.
To understand how much home you can afford accounting for your local property tax rate, the Affordability Calculator lets you enter ownership costs including annual property tax as part of your budget calculation.
If you’re buying a home and want to estimate all the cash you’ll need at closing — beyond just the down payment — the Closing Costs Calculator covers lender fees, title costs, prepaid taxes, and insurance. For homeowners considering borrowing against their equity, the HELOC Calculator shows your available credit line based on home value and remaining mortgage balance.
Data source
Property tax rates in this calculator are based on effective tax rates — actual taxes paid as a percentage of market value — sourced from the U.S. Census Bureau American Community Survey (ACS) 5-year estimates (2020–2024), as analysed by the Tax Foundation’s “Property Taxes by State” dataset (2024). Effective rates are used throughout rather than nominal millage rates, because assessment ratios (ranging from 4% in Louisiana to 100% in Washington State) make nominal rates meaningless for cross-state comparison.
State-specific rules (Proposition 13 assessment caps in California, Proposal A in Michigan, Save Our Homes in Florida, HB 920 in Ohio, Texas 10% homestead cap) are sourced from each state’s Department of Revenue or county appraisal district documentation, verified April 2026.
SALT deduction data: The One Big Beautiful Bill Act (OBBBA, signed July 4, 2025) raised the federal SALT deduction cap to $40,400 (single/MFJ) effective tax year 2026, per IRS Revenue Procedure 2025-32. Property taxes may be deductible up to this cap when itemising federal deductions.
Results are estimates. Actual liability depends on your county’s specific millage rate, assessment ratio, applicable exemptions, and local special district levies. Contact your county assessor’s office for the authoritative figure.