How to find your property tax bill, amount, and assessment

Last updated 2026-07-09

What exactly is a property tax and what makes up the bill?

Property tax is an annual charge that local governments put on real estate you own. It is not one flat percentage. Your bill is the product of two moving parts: your assessed value (what your local assessor says the property is worth for tax purposes) and the mill rate set by taxing bodies like school districts, city councils, and special districts.

Here is the math. If your home has an assessed value of $300,000 and your combined rate is 20 mills ($20 per $1,000 of assessed value), your gross bill is $6,000 before exemptions. Many states also apply an assessment ratio, meaning they tax only a fraction of market value. Cook County, Illinois assesses residential property at 10% of fair market value, so a $300,000 home carries an assessed value near $30,000 before the state equalizer gets applied ^[1].

Three things control what you pay: the market value estimate, the ratio that converts it to assessed value, and the combined rate from every overlapping district. All three can be checked. All three can be wrong.

Where can I find my property tax bill online?

Start with your county assessor's website, or in many states the county treasurer's or auditor's site. The assessor sets value. The treasurer collects the money. Sometimes they are the same office. Sometimes they are not. Either way, both are public record and both are free.

The fastest path:

1. Search Google for "[your county name] property tax lookup" or "[your county name] assessor parcel search." 2. Click the official .gov domain that appears (a county or city government site). 3. Enter your street address or, if you have it, your parcel identification number (also called APN, PIN, or parcel number). 4. Your record shows assessed value, taxable value, exemptions on file, and in most counties the current and prior year tax amounts.

Own property in a big metro? The direct portals are already documented here on TaxFightBack. See our guides for Los Angeles County property tax, Cook County tax assessor tax bill, Maricopa property tax, and San Diego property tax.

Rural counties that never built a portal still keep the same information at the county clerk's office, by phone or in person. The National Association of Counties keeps a county finder at naco.org that links to every U.S. county's official site ^[2].

One caution. Third-party sites like Zillow, Realtor.com, and various property-record aggregators pull assessor data but often lag six to twelve months, and sometimes they show the wrong parcel. Verify on the official county site before you act on any number.

How do I find my property tax using my address?

Every county assessor portal with an address search works about the same way. Type your street number and street name. Skip the city and zip at first, because formatting differences trip up the search. If the portal returns multiple results, pick the one with your full parcel address.

Here is what you see once you land on your parcel record:

Field on the record	What it means
Parcel / APN / PIN	Your unique property ID; save this number
Market value / appraised value	The assessor's estimate of what your property is worth
Assessed value	Market value times the local assessment ratio
Taxable value	Assessed value minus any exemptions (homestead, senior, etc.)
Mill rate / tax rate	Rate applied per $1,000 or $100 of taxable value
Current year tax due	The gross bill before payments
Payment status	Whether the bill has been paid

See a homestead exemption listed? Good. It means you applied at some point and the county recognizes you as an owner-occupant. If you own the home, live in it, and see no exemption, you are probably leaving money on the table. Apply now.

Some states split the work. Texas separates the Central Appraisal District (value) from the county tax office (payment). You look up your value at the appraisal district site, then the actual bill at the tax office. The Bexar County tax assessor guide walks through exactly how that works for San Antonio-area homeowners.

How do I find my property tax bill if I never received one in the mail?

Missed the paper bill? More common than you think, and it does not excuse a late payment. The legal obligation runs with the owner, not the envelope.

The online portal is always the most current source. Log in and check whether a bill has posted for the current tax year. If none shows yet, check the prior year's due dates to estimate when the current one will land.

If your mortgage servicer pays taxes through escrow, you may never get a paper bill at all. The servicer receives it and pays on your behalf. Look up your parcel anyway to confirm the payment posted. Do this every year. Servicer errors happen, and the county will lien your property no matter whose fault the missed payment was.

If the online search turns up nothing, call the assessor or treasurer directly. Give them your address and ask for your parcel number. From there you can verify amounts, due dates, and payment history. For Illinois homeowners, the Cook County tax assessor tax bill page explains the two-installment system.

In most states, unpaid property taxes start accruing interest and penalties after the first due date, often 1% to 2% per month ^[3]. Some states allow a tax lien sale within one to two years of delinquency. This is not the moment to procrastinate.

How do I find my property tax assessment (and check if it is accurate)?

Your tax bill and your assessment are two different documents. The assessment notice, sometimes called a Notice of Value or Notice of Assessment, is what the assessor mails when they change your property's value. The bill comes later and applies the rate to that value.

To find your current assessment:

1. Pull your parcel record on the county assessor portal (same steps as finding your bill). 2. Note the "appraised value" or "market value" field for the current assessment year. 3. Compare it to recent sales of similar homes within roughly half a mile. You can pull sales from Zillow, Redfin, or the assessor's own comparable sales tool.

If the assessor's market value looks higher than what similar homes actually sold for, that is your signal to appeal. The standard in most states is simple. You show comparable sales that support a lower value, and the assessor defends their number.

Do this accuracy check right now: look at the property characteristics on file. Square footage, bedrooms and bathrooms, lot size, and construction year are all listed on your parcel record. Errors here are common, and each one inflates your bill. A 2022 study in the Quarterly Journal of Economics found assessment errors that benefit the taxing authority land harder in lower-income and minority neighborhoods, but no property type is immune ^[4].

For Georgia homeowners, county-specific records and appeal windows are documented in our Gwinnett County tax assessor and Bibb County tax assessor guides.

What is the difference between assessed value, appraised value, and taxable value?

These three terms appear on almost every property record, and almost every homeowner muddles them. Here is the clean version.

Appraised value (also called market value or fair market value) is the assessor's estimate of what your home would sell for between a willing buyer and a willing seller. This is the starting point.

Assessed value is appraised value times an assessment ratio. In states with a ratio below 100%, only a fraction of market value gets hit by the tax rate. In California under Proposition 13, assessed value is the purchase price plus up to 2% a year rather than current market value, which is why longtime owners often pay far less than recent buyers ^[5]. In other states the ratio is 100% and assessed value equals appraised value.

Taxable value is assessed value minus exemptions. A homestead exemption might cut assessed value by $25,000, $50,000, or more depending on the state. Senior, veteran, and disability exemptions cut it further.

Your tax rate applies only to taxable value. That is the reason appealing your assessed value and claiming every exemption you qualify for are both worth the effort. They attack the same bill from two directions.

How do I find my property tax rate?

Your mill rate is set by local taxing districts, not the assessor. The combined rate usually appears on the tax bill itself, often labeled "total rate" or "composite rate" in mills or as a percentage.

If it is not on your bill, the county auditor typically publishes an annual rate table. Search "[county name] property tax rate schedule [year]" and look for a PDF on the official site.

The combined rate stacks levies from every overlapping government: the county, the municipality, school districts, community college districts, fire districts, and sometimes special districts for libraries, parks, or transit. This is why two homes on opposite sides of a city limit or school boundary can carry very different bills at the same assessed value.

The Lincoln Institute of Land Policy and the Minnesota Center for Fiscal Excellence publish an annual "50-State Property Tax Comparison Study" that shows effective tax rates by state and metro area ^[6]. It is a fast sanity check on whether your rate is normal for where you live.

How do I look up property taxes for a home I am thinking about buying?

Same county assessor portal, same parcel search. Type the address of the home you are considering, and you get the seller's current assessed value, exemptions in place, and last paid bill.

Here is the catch. The bill you see may reflect exemptions the current owner gets and you will not. A senior freeze, or a long-term owner's low assessed value under a state cap (California Prop 13, Florida Save Our Homes), resets when you buy. Ask the listing agent what the taxes will be after reassessment, and run the math yourself using the county's published rate.

Texas reassesses at close of sale. Florida caps annual increases at 3% for homesteaded properties, but the cap disappears on transfer. New York City co-ops and condos can see steep reassessments after a sale. These are not hypotheticals. They produce real sticker shock in the first year of ownership.

For county-level guidance on what to expect after you close, the St. Louis County personal property tax and Lake County property tax guides show how reassessment works in those jurisdictions.

Where can I find the best property tax appeal experts?

The honest answer: you usually do not need one. Most counties built the appeal process so a homeowner can file without an attorney or consultant, and the evidence you need (comparable sales, your parcel record, a measurement of your home) is public.

There are cases where paid help earns its keep:

• Commercial properties with income-approach valuations
• Very high-value homes where a 5% cut is worth tens of thousands a year
• Counties where the appeal requires a formal hearing before a Board of Equalization or state tax court

If you do hire someone, you have three basic options.

Property tax consultants. Non-attorneys who specialize in appeals. Most work on contingency and keep 30% to 50% of your first-year savings. Sounds painless. It adds up. A firm that wins a $1,500 reduction keeps $450 to $750 of it, and often every year they stay on retainer.

Property tax attorneys. Worth it if your appeal goes to state tax court or a formal hearing that requires legal representation. Hourly rates run roughly $200 to $400, though some take contingency deals.

DIY with a structured kit. For a straightforward overassessment on a residential property, a clean appeal built on three to five solid comparable sales wins more often than most homeowners expect. The TaxFightBack appeal kit shows you how to build that file, and you keep 100% of the savings.

To find a legitimate consultant or attorney, the Institute for Professionals in Taxation and your state bar association keep searchable directories ^[11]. Ask any candidate how many residential appeals they filed in your county last year and what share won a reduction. Good ones know those numbers cold.

Avoid one thing: firms that flood social media with guarantees of big reductions. No reduction is guaranteed for anyone. An honest professional tells you that on the first call.

What deadlines do I need to know after I find my property tax?

Two separate deadlines run your property tax calendar, and confusing them costs money.

The payment deadline is set by your county or state, typically once or twice a year. Miss it and you owe penalties and interest. Most states charge 1% to 2% per month on unpaid balances, and some record unpaid bills as public liens within 30 to 90 days of delinquency ^[3].

The appeal deadline is different and almost always much shorter. Most states give you 30 to 90 days from the date the assessment notice is mailed. Texas requires your protest by May 31 or 30 days after the notice was delivered, whichever is later, under Tax Code Section 41.44 ^[7]. Miss the appeal window and you cannot challenge that year's value, no matter how wrong it is.

Here is a simplified table of appeal windows for several major states. Confirm the current date with your local assessor, because statutes change.

State	Typical appeal deadline
California	60 days from Assessment Notice (varies by county)
Texas	May 31 or 30 days from notice, whichever is later
Illinois (Cook County)	30 days from publication of the assessment roll
Florida	25 days from TRIM notice (typically mailed mid-August)
Georgia	45 days from assessment notice
New York	Varies by jurisdiction; often March 1 (Nassau) or May 1 (NY State)
Arizona	60 days from notice of value

The payment deadline and the appeal deadline are completely independent. Pay your bill on time even while your appeal is pending. Win, and you get a refund or credit. Skip the payment while you wait, and you rack up penalties no appeal can erase.

How do I know if my property tax is too high and worth appealing?

Pull three to five sales of comparable homes that closed in the last six to twelve months, within roughly half a mile, with similar size, age, and condition. This is the exact evidence you would bring to an appeal. Running it first tells you whether you have a case at all.

If the assessor's market value sits more than 5% to 10% above what comparable homes actually sold for, you have a reasonable appeal. Below that margin, your time and transaction costs may outweigh the savings.

A second quick check is your effective tax rate against market value. Divide your total annual bill by your home's current market value, then compare to the county average. The Lincoln Institute study publishes these rates by metro area for benchmarking ^[6]. Paying materially above average? Something may be off in your assessment, or you may be missing exemptions.

Common errors that inflate bills and are easy to fix:

• Square footage recorded higher than actual (measure and document)
• Extra bathrooms or a finished basement the property does not have
• Wrong construction year (older home assessed as newer)
• Missing or lapsed homestead exemption
• Comparable sales the assessor leaned on that are not actually comparable

The Bibb County tax assessor guide shows how to pull comparables in that Georgia county, and the same method works almost everywhere.

Frequently asked questions

How do I find my property tax bill online?

Go to your county assessor's or treasurer's official website (it ends in .gov) and use the parcel or address search. Enter your street address, select your parcel, and look for the current year tax bill or tax summary. Amount due, due dates, and payment status are all there. Not sure which office handles billing? NACo's county finder at naco.org links to every U.S. county's site.

How do I find my property tax using my parcel number?

Your parcel number (also called APN, PIN, or parcel ID) sits on your deed, your prior tax bill, or your mortgage closing paperwork. Enter it directly in the county assessor's parcel search and it pulls your exact record without address-formatting problems. Once you have the number saved, every future lookup takes about 30 seconds.

How do I find out how much property tax I paid last year?

Your county assessor or treasurer portal shows payment history, usually two to five years back. Log in, search your parcel, and open the "payment history" or "tax history" tab. Your mortgage servicer's year-end statement (Form 1098) also reports property taxes paid through escrow, and you can request a full history from the servicer directly.

Where can I find my property tax assessment notice?

Assessment notices are mailed by your county assessor when they update your property's value, usually once a year or every few years depending on the state. Missed the paper notice? The current assessed value is always on the assessor's online parcel record. Some counties also email notices if you opt in through your account on their portal.

Can I look up property taxes for an address I don't own?

Yes. Property tax records are public in all 50 states. Enter any address in the county assessor's parcel search. This helps buyers researching a home's tax history and homeowners checking what neighbors pay to judge whether their own assessment is fair. No login or ownership proof required.

What if my property tax amount seems wrong or way too high?

Check two things: the assessed value and the property characteristics on file. If the assessed value is above recent comparable sales, you likely have grounds to appeal. If the record shows wrong square footage, extra rooms, or other errors, those corrections can cut your bill even faster. Most counties let you file an informal correction request before a formal appeal.

How do I find the property tax rate for my area?

Your combined mill rate should appear on your annual tax bill. If not, search your county auditor's website for the current tax rate schedule, usually a PDF published each fall. The rate is the sum of levies from every overlapping district: county, city, school, and any special districts. The Lincoln Institute of Land Policy publishes effective rates by metro area for comparison.

Where can I find the best property tax appeal experts near me?

The Institute for Professionals in Taxation at ipt.org and your state bar association both keep searchable directories of property tax consultants and attorneys. For residential appeals, ask any candidate how many county-level appeals they filed last year and their reduction rate. Many homeowners, though, win residential appeals without a professional using comparable sales and the county's own data.

Do I still owe my property tax if I am appealing the assessment?

Yes. Filing an appeal does not pause your payment. Pay the bill by the due date to avoid penalties and interest. If your appeal wins and lowers your assessed value, the county issues a refund or applies a credit to your next bill. Most states are clear here: you pay first, then collect the difference.

How often is property tax reassessed?

It varies widely. Some states reassess annually (Texas, Georgia). Others run a cycle of two to six years (Illinois reassesses townships every three years). California reassesses only when a property transfers or undergoes new construction. Check your state law or your assessor's FAQ page to know when your next reassessment is due, because that is when your value and your bill can jump.

What exemptions can reduce my property tax bill?

The homestead exemption for owner-occupants is the most common and cuts taxable value by $25,000 to $50,000 in many states. Senior, disability, and veteran exemptions cut it further or freeze the value entirely. Most states do not apply these automatically; you have to apply. Check your parcel record to confirm which exemptions are currently on file.

How do I find my property tax if I just bought a home?

Search the new county assessor's portal using your street address. Your closing disclosure also lists property taxes pro-rated at settlement. Be careful: if the prior owner had a senior freeze or a long-term ownership cap, your assessed value may reset sharply at your first reassessment after purchase, and your bill can rise well above what the seller paid.

Is there a federal database to look up property taxes?

No. Property tax is entirely local; there is no federal registry. The IRS collects information about deductible property taxes on Schedule A of Form 1040, but it hosts no lookup tool. Every search starts at the county or parish level. The National Association of Counties at naco.org can point you to the right county office if you are unsure where to begin.

What is the deadline to appeal my property tax assessment?

Deadlines vary by state and sometimes by county. Texas gives you until May 31 or 30 days from your notice, whichever is later. Florida gives 25 days from the August TRIM notice. Georgia gives 45 days. California gives 60 days. These windows are hard stops: miss one and you cannot appeal that year's value. Check your assessment notice for the exact date printed on the form.

Sources

1. Illinois Department of Revenue, Property Tax information: Cook County assesses residential property at 10% of market value; most Illinois counties outside Cook use 33.33% of fair cash value, with a state equalizer applied afterward.
2. National Association of Counties (NACo), County Explorer directory: NACo maintains a directory linking to every U.S. county's official government website.
3. National Consumer Law Center, home equity and tax lien resources: Most states charge 1% to 2% per month interest and penalties on unpaid property tax balances; some states allow tax lien sales within one to two years of delinquency.
4. Avenancio-Leon & Howard, 'The Assessment Gap: Racial Inequalities in Property Taxation,' Quarterly Journal of Economics (2022): Assessment errors that benefit the taxing authority are more prevalent in lower-income and minority neighborhoods, but overassessment affects all property types.
5. California State Board of Equalization, Proposition 13 information: Under California Proposition 13, assessed value is set at purchase price and limited to increases of no more than 2% per year; value resets to market value on transfer.
6. Lincoln Institute of Land Policy, '50-State Property Tax Comparison Study': The annual study compares effective residential property tax rates by state and major metro area, providing benchmarks for homeowners.
7. Texas Comptroller of Public Accounts, Property Tax, Tax Code Section 41.44: Texas Tax Code Section 41.44 requires a protest notice by May 31 or 30 days after the appraisal notice was delivered, whichever is later.
8. Florida Department of Revenue, Property Tax Oversight: Florida's Truth in Millage (TRIM) notices are mailed in mid-August and property owners have 25 days from the mailing date to petition the Value Adjustment Board.
9. Georgia Department of Revenue, Property Tax Division: Georgia property owners have 45 days from the date of the assessment notice to file an appeal with the county board of tax assessors.
10. IRS, Topic No. 503, Deductible Taxes: The IRS allows deduction of state and local real property taxes actually paid if you itemize; the SALT deduction is capped at $10,000 per return under current law.
11. Institute for Professionals in Taxation (IPT): IPT maintains a searchable directory of property tax professionals including consultants and attorneys who specialize in assessment appeals.