All Property Tax Calculators

Property tax is the largest recurring cost of homeownership in most US states, yet it is calculated in very different ways depending on where you live, your age, your veteran status, and whether the home is your primary residence or a rental. HomeTaxCalc provides nine free, purpose-built calculators so you can model your exact situation instead of guessing. Every tool works for all 50 states and 3,000+ counties, runs entirely in your browser, and never stores your inputs.

Choose Your Calculator

Select a tool below to get started

Which Calculator Should You Use?

Most homeowners only need one or two of these tools, depending on their life stage and where they live. Use the scenario guide below to jump straight to the right calculator.

• You own one primary home and want your total annual bill. Start with the Full Property Tax Calculator. Enter your assessed value, your state, and any homestead exemption to see the complete picture.
• You are 65 or older, or disabled. The Senior Tax Savings tool models the freeze and exemption your state offers, which can cut your bill substantially.
• You are a veteran or surviving spouse. The Veteran Exemption calculator applies your disability rating to your state's exemption schedule automatically.
• You qualify for more than one break. The Exemption Stack estimator layers homestead, senior, and veteran exemptions to show combined savings that no single tool captures.
• You are moving or comparing offers. The State Comparison calculator shows how your monthly payment changes when you cross a state line.
• You have a mortgage with escrow. The Monthly Escrow tool splits your payment so you know exactly how much goes to tax each month.
• You itemize federal deductions. The SALT Deduction estimator shows whether the $10,000 cap helps your return.
• You own a rental or Airbnb. The Rental Tax calculator prices the property without a homestead exemption and factors depreciation.

How Property Tax Is Calculated

Every US property tax bill follows the same three-step logic, regardless of state:

Your assessed value is set by the county assessor as a percentage of market value — the assessment ratio — which ranges from about 10% in some states to 100% in others. You then subtract any exemptions (homestead, senior, veteran) before multiplying by the local tax rate, expressed as a percentage or in mills (one mill = $1 per $1,000 of assessed value). Our calculators handle each step for your specific state so you never have to look up the formula yourself.

Why Rates Vary So Dramatically by Location

Two homes worth the same amount can owe wildly different tax bills. New Jersey, Illinois, and New Hampshire have some of the highest effective rates in the country; Hawaii, Alabama, and Wyoming are among the lowest. Within a single state, neighboring counties set their own millage through local budget votes, so your rate can change significantly just by crossing a county line. The County Map shows average rates for every county, and the By State guide explains each state's assessment rules.

Understanding Millage Rates

A "millage rate" is simply the tax per $1,000 of assessed value. A rate of 20 mills means you pay $20 for every $1,000 of taxable value, or 2.0%. County millage is usually the sum of several layers: county government, school district, city, and special districts such as fire or library. The Millage Converter unpacks those layers so you can see exactly where your dollar goes. Knowing the components also helps when you appeal: a school-bond levy, not the county rate, may be the part driving your bill up.

Property Tax and Your Federal Return

If you itemize, state and local property taxes are deductible on Schedule A — but the SALT deduction is capped at $10,000 per household ($5,000 if married filing separately). High-tax-state homeowners routinely hit that cap, which limits the federal benefit. Use the SALT Deduction estimator to see whether you gain anything on your return, and remember that rental property taxes are deducted separately on Schedule E.

Frequently Asked Questions

Are these calculators accurate?

They apply the standard property-tax formula using the rates and exemption rules for the state and county you select. They are planning tools, not official assessments — always confirm the exact figure with your county assessor before making a financial decision.

Do I need to create an account?

No. Every calculator runs in your browser and requires no login. Your inputs are not transmitted or stored.

Which calculator saves me the most time?

For a quick total bill, use the Full Property Tax Calculator. If you think you qualify for multiple breaks, go straight to the Exemption Stack estimator, which combines them in one view.

Can I use these for a rental or second home?

Yes — the Rental Tax calculator is built for investment properties, and the Full Property Tax Calculator can model a second home by setting the homestead exemption to zero.

Property Tax Calendar: Key Dates That Affect Your Bill

Tax bills do not arrive at random. Most counties follow a predictable annual cycle, and missing a date can cost you an exemption or an appeal:

• January–March: Assessors mail annual assessment notices. This is the window to review your assessed value for errors.
• February–April: Homestead and senior/veteran exemption applications are typically due. File late and you usually wait a full year.
• April–June: Formal appeal deadlines for that tax year. Many jurisdictions cut off 30–60 days after the notice.
• July–October: Tax rates (millage) are set after budgets pass; some states hold truth-in-taxation hearings you can attend.
• October–December: Bills mail and the first installment, or full payment, comes due. Late payment triggers penalties and interest.

5 Ways to Lower Your Property Tax Bill

No calculator can change your county's rate, but several levers genuinely reduce what you owe:

1. Claim every exemption you qualify for. Homestead is the big one; senior, veteran, and disability exemptions stack on top in many states. The Exemption Stack estimator shows the combined effect.
2. Appeal an over-assessment. If your assessed value exceeds recent comparable sales, a formal appeal can cut your taxable base. Gather three comparable sales and file before the deadline.
3. Watch reassessment timing. In cap states like California (Prop 13) and Michigan (Proposal A), a sale resets value to market. Budget for the jump when you buy.
4. Understand your escrow. Lenders sometimes over-collect. Comparing your real tax (from these calculators) to the escrow line can surface an overcharge.
5. Track bond and override votes. School and public-safety levies add millage even when the base rate is flat. A "low-rate" county can darken after a string of bond votes.

Glossary: Terms on Your Assessment Notice

• Assessed value — the dollar figure your assessor uses for taxation, often a fraction of market value.
• Market value — what your home would sell for today.
• Assessment ratio — assessed ÷ market value (e.g., 0.10 means assessments are 10% of market).
• Mill / millage — tax per $1,000 of assessed value; 10 mills = 1.0%.
• Effective rate — total tax as a percent of market value; the figure most useful for comparisons.
• Homestead exemption — a reduction in taxable value for your primary residence.
• Supplemental bill — a one-time bill (common in CA) covering the gap when ownership or new construction changes value mid-year.

More Frequently Asked Questions

Why does my bill differ from my neighbor's?

Different assessment dates, exemption status, and school-district levies all change the number. Two identical homes can owe different tax if one owner has a senior freeze and the other does not.

Do these tools work for condos and townhomes?

Yes. Enter the assessed value the association or county assigns; the same formula applies regardless of dwelling type.

What if my state is not listed?

All 50 states are covered. If a field is missing for your county, use the By State guide or County Map for the local rate and enter it manually.

Are results saved or shared?

No. Calculations happen in your browser; nothing is uploaded, stored, or sold.

How to Read Your Results

After you run any calculator you will see an annual total, a monthly figure, and often a breakdown by taxing authority. The annual number is what your county bills; the monthly figure is what a mortgage escrow would collect (annual ÷ 12, sometimes with a buffer). If the result looks high, check two inputs first: the assessed value (it should be a fraction of market value in most states, not the full price) and the exemption amount (many homeowners leave the homestead box unchecked and overstate their bill). Small input errors produce large swings, so always start from your official assessment notice.