Property Tax Calculator
Calculate property tax with our free Property tax Calculator. Compare rates, see projections, and make informed financial decisions.
Property Tax Calculator
Calculator
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Formula: Property Tax = (Home Value - Exemptions) x Tax Rate
Worked example — Annual Tax: $3,900 | Monthly: $325 | Effective Rate: 1.114%
Formula
Property Tax = (Home Value - Exemptions) x Tax Rate
The assessed value of your property, minus any applicable exemptions, is multiplied by the local tax rate. Tax rates are set by local jurisdictions and typically expressed as a percentage or mill rate (per $1,000 of value). Your total tax may combine rates from county, city, school district, and special districts.
Worked Examples
Example 1: Standard Property Tax Calculation
Problem:A home valued at $350,000 with a tax rate of 1.2% and a $25,000 homestead exemption.
Solution:Taxable Value = $350,000 - $25,000 = $325,000 Annual Tax = $325,000 x 1.2% = $3,900 Monthly Tax = $3,900 / 12 = $325 Effective Rate = $3,900 / $350,000 = 1.114%
Result:Annual Tax: $3,900 | Monthly: $325 | Effective Rate: 1.114%
Example 2: High-Tax State Example
Problem:A $400,000 home in New Jersey with a 2.47% average tax rate and no exemptions.
Solution:Taxable Value = $400,000 Annual Tax = $400,000 x 2.47% = $9,880 Monthly Tax = $9,880 / 12 = $823 National average tax on same home = $400,000 x 1.1% = $4,400
Result:Annual Tax: $9,880 | Monthly: $823 | $5,480 above national average
Frequently Asked Questions
How are property taxes calculated?
Property taxes are calculated by multiplying your property's assessed value (minus any exemptions) by the local tax rate. The formula is: Property Tax = (Assessed Value - Exemptions) x Tax Rate. Tax rates are set by local governments (county, city, school district) and expressed as a percentage, mill rate (per $1,000 of value), or per $100 of assessed value. Assessed value may differ from market value — many jurisdictions assess at a fraction of market value. Tax rates and assessments are updated periodically, typically every 1-5 years.
What is a mill rate?
A mill rate is a way of expressing property tax rates where one mill equals $1 of tax per $1,000 of assessed property value. For example, a mill rate of 20 means $20 in taxes per $1,000 of value. To convert a mill rate to a percentage, divide by 10 (20 mills = 2.0%). To calculate tax: Assessed Value x Mill Rate / 1,000. Mill rates are commonly used in New England and some other regions. Your total mill rate is usually a combination of several rates from different taxing authorities (county, city, school, special districts).
What property tax exemptions are available?
Common exemptions include: Homestead Exemption (reduces taxable value for primary residences, typically $25,000-$50,000), Senior Citizen Exemption (additional reductions for homeowners over 65), Veteran/Disabled Veteran Exemption (partial to full exemption for qualifying veterans), Disability Exemption, Agricultural Exemption (for farmland), and various state-specific programs. Some states freeze assessed values for seniors. Exemptions vary widely by state and locality — check with your county assessor's office for available exemptions in your area.
Which states have the highest and lowest property taxes?
Highest effective property tax rates: New Jersey (2.47%), Illinois (2.27%), New Hampshire (2.18%), Connecticut (2.14%), and Texas (1.80%). Lowest rates: Hawaii (0.28%), Alabama (0.41%), Colorado (0.51%), Louisiana (0.55%), and South Carolina (0.57%). However, low property tax states often have higher income or sales taxes to compensate. Total tax burden should be considered, not just property taxes. Some states like Texas have high property taxes but no state income tax.
Can I appeal my property tax assessment?
Yes, property tax assessments can be appealed. Common grounds include: your assessed value exceeds market value, your assessment is higher than comparable properties, there are errors in the property description (wrong square footage, bedroom count, etc.), or the assessment increased dramatically without justification. The appeal process typically involves: 1) Reviewing your assessment notice, 2) Gathering comparable sales data, 3) Filing a formal appeal with the local board of review (usually within 30-90 days of notice), 4) Presenting your case at a hearing. Success rates vary but are often 30-40% for well-prepared appeals.
What is the difference between market value, assessed value and taxable value?
Market value is what the property would sell for. Assessed value is what the assessor records, which in many jurisdictions is market value multiplied by a fixed assessment ratio rather than the full amount. Taxable value is the assessed value after exemptions and any statutory caps are removed, and it is the figure the rate is actually applied to. Comparing bills across jurisdictions using only the rate is misleading, because the same rate on a different assessment basis produces a very different bill.
How do escrow accounts collect property tax alongside my mortgage payment?
Rather than facing one or two large bills, many borrowers pay roughly one twelfth of the estimated annual tax each month into an escrow or impound account, and the servicer pays the taxing authority when the bill falls due. When the assessment or the levy changes, the servicer re-analyses the account and adjusts the monthly amount, sometimes adding a catch-up for a shortfall. A tax increase therefore reaches your budget as a jump in the whole mortgage payment.
What is an effective property tax rate and why does it differ from the posted rate?
The effective rate is the tax actually paid divided by the property's market value. It sits below the posted nominal rate whenever the assessment ratio is less than 100 percent, whenever exemptions reduce taxable value, or whenever assessments lag a rising market. It is the fairest basis for comparing one jurisdiction with another, because it collapses rate, assessment practice and exemptions into a single number that maps onto real cash out of pocket.
Why can my bill rise even though the mill rate went down?
Most local jurisdictions set a budget first and then derive the rate needed to raise it from the total assessed value in the district. When property values rise sharply, the same budget requires a lower rate, yet an individual owner whose assessment rose faster than the district average still pays more. Reassessment timing amplifies this. Compare the change in your own assessed value against the district-wide change before concluding that the rate cut should have helped you.
How do assessment caps and reassessment cycles change what I owe over time?
Some jurisdictions reassess annually while others do so on a multi-year cycle, and many limit how fast an individual assessment can rise. Under a cycle, several years of market appreciation can land in one bill. Under a cap, a long-held property can carry a taxable value well below market until a sale or major improvement triggers a reset, which is why a new owner's bill can exceed the seller's substantially. Rules vary widely, so verify local practice.
References
Reviewed for accuracy by Sahil, Senior Finance & Tax Editor · Editorial policy
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