Free tool
Did your assessment go up?
Type your home's assessed value last year and this year. We tell you whether the increase is above the cap your state sets, what to do if you think it is wrong, and what the homestead exemption saves.
Free, no sign-up. What you type stays on your phone.
- 44 places (among the states, D.C. and Puerto Rico) with rules read on the official source, each with its date
- Rules verified as of November 6, 2026.
- Public data from the Census Bureau
Find this year's assessed value on your assessment notice and last year's on last year's notice or bill. Type them here.
Your assessment
Let's do the math
Is your increase above the cap?
Pick your state to see its cap.
This sums up what the state's official source says; it is not legal or tax advice. Your county or city may have its own rules and dates.
The caps, state by state
The cap for your home and for other property, and whether the appeal window is the state's or each county's. Where it says "Not verified", we have not yet read the rule on the official source.
| Cap on your home | Cap on other property | Appeal window | |
|---|---|---|---|
| Alabama | 7% a year | 7% a year | One for the whole state |
| Alaska | Not verified | Not verified | One for the whole state |
| Arizona | 5% a year | 5% a year | One for the whole state |
| Arkansas | 5% a year | 10% a year | Not verified |
| California | Inflation, up to 2% | Inflation, up to 2% | One for the whole state |
| Connecticut | Not verified | Not verified | Not verified |
| Delaware | Not verified | Not verified | Not verified |
| District of Columbia | 10% a year | Not verified | One for the whole state |
| Florida | Inflation, up to 3% | 10% a year | One for the whole state |
| Georgia | Not verified | Not verified | One for the whole state |
| Hawaii | Not verified | Not verified | Set by your county or town |
| Idaho | Not verified | Not verified | One for the whole state |
| Illinois | Not verified | Not verified | Set by your county or town |
| Indiana | Not verified | Not verified | One for the whole state |
| Iowa | Not verified | Not verified | One for the whole state |
| Kansas | Not verified | Not verified | One for the whole state |
| Kentucky | Not verified | Not verified | One for the whole state |
| Louisiana | Not verified | Not verified | Not verified |
| Maryland | 10% a year | Not verified | One for the whole state |
| Minnesota | Not verified | Not verified | Set by your county or town |
| Mississippi | Not verified | Not verified | One for the whole state |
| Missouri | Not verified | Not verified | Not verified |
| Montana | Not verified | Not verified | One for the whole state |
| Nebraska | Not verified | Not verified | One for the whole state |
| Nevada | 3% on the bill | 8% on the bill | Not verified |
| New Jersey | Not verified | Not verified | One for the whole state |
| New York | Not verified | Not verified | Set by your county or town |
| North Carolina | Not verified | Not verified | Not verified |
| North Dakota | Not verified | Not verified | Not verified |
| Ohio | Not verified | Not verified | One for the whole state |
| Oklahoma | 3% a year | 5% a year | One for the whole state |
| Oregon | 3% a year | 3% a year | One for the whole state |
| Pennsylvania | Not verified | Not verified | Not verified |
| Puerto Rico | Not verified | Not verified | One for the whole state |
| Rhode Island | Not verified | Not verified | One for the whole state |
| South Carolina | Not verified | Not verified | One for the whole state |
| South Dakota | Not verified | Not verified | One for the whole state |
| Texas | 10% a year | 20% a year | One for the whole state |
| Vermont | Not verified | Not verified | Set by your county or town |
| Virginia | Not verified | Not verified | Set by your county or town |
| Washington | Not verified | Not verified | One for the whole state |
| West Virginia | Not verified | Not verified | One for the whole state |
| Wisconsin | Not verified | Not verified | Set by your county or town |
| Wyoming | Not verified | Not verified | One for the whole state |
-
Alabama
- Cap on your home
- 7% a year
- Cap on other property
- 7% a year
- Appeal window
- One for the whole state
-
Alaska
- Cap on your home
- Not verified
- Cap on other property
- Not verified
- Appeal window
- One for the whole state
-
Arizona
- Cap on your home
- 5% a year
- Cap on other property
- 5% a year
- Appeal window
- One for the whole state
-
Arkansas
- Cap on your home
- 5% a year
- Cap on other property
- 10% a year
- Appeal window
- Not verified
-
California
- Cap on your home
- Inflation, up to 2%
- Cap on other property
- Inflation, up to 2%
- Appeal window
- One for the whole state
-
Connecticut
- Cap on your home
- Not verified
- Cap on other property
- Not verified
- Appeal window
- Not verified
-
Delaware
- Cap on your home
- Not verified
- Cap on other property
- Not verified
- Appeal window
- Not verified
-
District of Columbia
- Cap on your home
- 10% a year
- Cap on other property
- Not verified
- Appeal window
- One for the whole state
-
Florida
- Cap on your home
- Inflation, up to 3%
- Cap on other property
- 10% a year
- Appeal window
- One for the whole state
-
Georgia
- Cap on your home
- Not verified
- Cap on other property
- Not verified
- Appeal window
- One for the whole state
-
Hawaii
- Cap on your home
- Not verified
- Cap on other property
- Not verified
- Appeal window
- Set by your county or town
-
Idaho
- Cap on your home
- Not verified
- Cap on other property
- Not verified
- Appeal window
- One for the whole state
-
Illinois
- Cap on your home
- Not verified
- Cap on other property
- Not verified
- Appeal window
- Set by your county or town
-
Indiana
- Cap on your home
- Not verified
- Cap on other property
- Not verified
- Appeal window
- One for the whole state
-
Iowa
- Cap on your home
- Not verified
- Cap on other property
- Not verified
- Appeal window
- One for the whole state
-
Kansas
- Cap on your home
- Not verified
- Cap on other property
- Not verified
- Appeal window
- One for the whole state
-
Kentucky
- Cap on your home
- Not verified
- Cap on other property
- Not verified
- Appeal window
- One for the whole state
-
Louisiana
- Cap on your home
- Not verified
- Cap on other property
- Not verified
- Appeal window
- Not verified
-
Maryland
- Cap on your home
- 10% a year
- Cap on other property
- Not verified
- Appeal window
- One for the whole state
-
Minnesota
- Cap on your home
- Not verified
- Cap on other property
- Not verified
- Appeal window
- Set by your county or town
-
Mississippi
- Cap on your home
- Not verified
- Cap on other property
- Not verified
- Appeal window
- One for the whole state
-
Missouri
- Cap on your home
- Not verified
- Cap on other property
- Not verified
- Appeal window
- Not verified
-
Montana
- Cap on your home
- Not verified
- Cap on other property
- Not verified
- Appeal window
- One for the whole state
-
Nebraska
- Cap on your home
- Not verified
- Cap on other property
- Not verified
- Appeal window
- One for the whole state
-
Nevada
- Cap on your home
- 3% on the bill
- Cap on other property
- 8% on the bill
- Appeal window
- Not verified
-
New Jersey
- Cap on your home
- Not verified
- Cap on other property
- Not verified
- Appeal window
- One for the whole state
-
New York
- Cap on your home
- Not verified
- Cap on other property
- Not verified
- Appeal window
- Set by your county or town
-
North Carolina
- Cap on your home
- Not verified
- Cap on other property
- Not verified
- Appeal window
- Not verified
-
North Dakota
- Cap on your home
- Not verified
- Cap on other property
- Not verified
- Appeal window
- Not verified
-
Ohio
- Cap on your home
- Not verified
- Cap on other property
- Not verified
- Appeal window
- One for the whole state
-
Oklahoma
- Cap on your home
- 3% a year
- Cap on other property
- 5% a year
- Appeal window
- One for the whole state
-
Oregon
- Cap on your home
- 3% a year
- Cap on other property
- 3% a year
- Appeal window
- One for the whole state
-
Pennsylvania
- Cap on your home
- Not verified
- Cap on other property
- Not verified
- Appeal window
- Not verified
-
Puerto Rico
- Cap on your home
- Not verified
- Cap on other property
- Not verified
- Appeal window
- One for the whole state
-
Rhode Island
- Cap on your home
- Not verified
- Cap on other property
- Not verified
- Appeal window
- One for the whole state
-
South Carolina
- Cap on your home
- Not verified
- Cap on other property
- Not verified
- Appeal window
- One for the whole state
-
South Dakota
- Cap on your home
- Not verified
- Cap on other property
- Not verified
- Appeal window
- One for the whole state
-
Texas
- Cap on your home
- 10% a year
- Cap on other property
- 20% a year
- Appeal window
- One for the whole state
-
Vermont
- Cap on your home
- Not verified
- Cap on other property
- Not verified
- Appeal window
- Set by your county or town
-
Virginia
- Cap on your home
- Not verified
- Cap on other property
- Not verified
- Appeal window
- Set by your county or town
-
Washington
- Cap on your home
- Not verified
- Cap on other property
- Not verified
- Appeal window
- One for the whole state
-
West Virginia
- Cap on your home
- Not verified
- Cap on other property
- Not verified
- Appeal window
- One for the whole state
-
Wisconsin
- Cap on your home
- Not verified
- Cap on other property
- Not verified
- Appeal window
- Set by your county or town
-
Wyoming
- Cap on your home
- Not verified
- Cap on other property
- Not verified
- Appeal window
- One for the whole state
Source: each state's law or its tax department's official page. Each state's property-tax page shows the exact text and the date.
Show contents
How is it calculated?
We read each rule on the state's official source; you only type the two values.
The formula
Increase = this year's value − last year's value. Cap = last year's value × (1 + the percentage your state sets). If this year's value is above that limit, the increase is above the cap.
Example with the numbers for the United States
How many states have each kind of cap verified in our records:
- A fixed percentage a year
- 8 states
- Inflation, with a ceiling
- 2 states
- A limit on the bill, not the value
- 1 state
Computed from the page's data when it was built; in the tool you replace every number with your own.
What moves the result?
Six things that change the number more than anything else.
-
The assessed value
It is the value the county gives your home to tax it. It can differ from the sale price.
-
The protest deadline
It is usually short and starts when the notice is mailed. Write down the date on the envelope.
-
Your state's law
Each state decides whether there is a cap, how much and for which property. What applies in one state does not in another.
-
The homestead exemption
If the home is your main residence, many states lower its value or its tax. You almost always have to apply.
-
Your evidence
Photos of the home's condition, sales of similar homes and errors on the record (square feet, rooms, baths) help in a protest.
-
Your county
The county or town assesses the home and takes the protest. Each has its own form and office.
The official numbers behind the tool
Official data the tool uses, so you can compare.
Property tax in the most populous counties of the United States
| Place | Effective rate | Typical tax per year | Typical value |
|---|---|---|---|
| Los Angeles County (CA) | 0.68% | $5,675 | $834,200 |
| Cook County (IL) | 1.91% | $6,191 | $324,500 |
| Harris County (TX) | 1.62% | $4,489 | $276,600 |
| Maricopa County (AZ) | 0.44% | $1,983 | $452,800 |
| San Diego County (CA) | 0.68% | $5,774 | $854,700 |
| Orange County (CA) | 0.66% | $6,330 | $962,600 |
| Miami-Dade County (FL) | 0.81% | $3,744 | $463,000 |
| Kings County (NY) | 0.71% | $6,382 | $905,000 |
- Los Angeles County (CA) 0.68%$5,675
- Cook County (IL) 1.91%$6,191
- Harris County (TX) 1.62%$4,489
- Maricopa County (AZ) 0.44%$1,983
- San Diego County (CA) 0.68%$5,774
- Orange County (CA) 0.66%$6,330
- Miami-Dade County (FL) 0.81%$3,744
- Kings County (NY) 0.71%$6,382
Source: American Community Survey (Average 2020–2024)
Homes, incomes and taxes in the most populous states
| State | Typical value | Typical household income | Effective rate |
|---|---|---|---|
| California | $734,700 | $99,122 | 0.7% |
| Texas | $283,800 | $78,476 | 1.49% |
| Florida | $359,000 | $74,568 | 0.76% |
| New York | $423,800 | $85,974 | 1.55% |
| Pennsylvania | $254,500 | $77,971 | 1.3% |
| Illinois | $263,300 | $83,390 | 2.01% |
| Ohio | $214,800 | $71,389 | 1.31% |
| Georgia | $303,300 | $77,353 | 0.77% |
- California $734,700$99,122
- Texas $283,800$78,476
- Florida $359,000$74,568
- New York $423,800$85,974
- Pennsylvania $254,500$77,971
- Illinois $263,300$83,390
- Ohio $214,800$71,389
- Georgia $303,300$77,353
Source: American Community Survey (Average 2020–2024)
— means the source publishes no value.
Want your county's numbers?
Type your county or ZIP code: the tool loads its numbers and keeps them in your browser for the other tools.
Frequently asked questions
What is an assessment cap?
It is a limit some states set on how much the value you are taxed on can rise each year. For example, your main home's value may not rise more than a set percentage a year. Today we have the cap verified for 11 states.
My increase is above the cap. What do I do?
Check your notice: sometimes the increase comes from a new improvement, a change of owner or a lost exemption. If you think it is a mistake, protest within your state's deadline. The tool gives you the steps, the source and a list to print.
What does "not verified" mean?
That we have not yet read that rule on that state's official source, or that the date to check it again has passed. It does not mean the state has no such rule.
Do you keep my data?
No. What you type stays in this browser and you can erase it with "Start over". The list and the calendar are made right here; nothing is sent anywhere. This is not legal or tax advice.
Methodology and sources (the Census Bureau)
- Every cap, exemption and deadline comes from the state's law or its tax department's official page, copied word for word, with the link and the date we read it.
- We say a state has no cap only when the official source says so. If we have not verified it, we say so: "not verified", and we do not guess.
- The exemption's saving is an estimate: we use the county's effective rate (typical tax ÷ typical value, from the Census), not the rate on your bill.
Data
- American Community Survey (Average 2020–2024)
Program rules
- Alabama: revenue.alabama.gov · Verified on November 6, 2026
- Alaska: akleg.gov · Verified on November 6, 2026
- Arizona: azdor.gov · Verified on November 5, 2026
- Arkansas: dfa.arkansas.gov · Verified on November 6, 2026
- California: boe.ca.gov · Verified on November 5, 2026
- Connecticut: portal.ct.gov · Verified on November 6, 2026
- Delaware: finance.delaware.gov · Verified on November 6, 2026
- District of Columbia: code.dccouncil.gov · Verified on November 6, 2026
- Florida: floridarevenue.com · Verified on November 5, 2026
- Georgia: dor.georgia.gov · Verified on November 6, 2026
- Hawaii: budget.hawaii.gov · Verified on November 6, 2026
- Idaho: tax.idaho.gov, bta.idaho.gov, legislature.idaho.gov · Verified on November 6, 2026
- Illinois: tax.illinois.gov · Verified on November 5, 2026
- Indiana: in.gov, forms.in.gov · Verified on November 6, 2026
- Iowa: revenue.iowa.gov, legis.iowa.gov · Verified on November 6, 2026
- Kansas: ksrevenue.gov, ksrevisor.gov · Verified on November 6, 2026
- Kentucky: revenue.ky.gov · Verified on November 6, 2026
- Louisiana: legis.la.gov · Verified on November 6, 2026
- Maryland: dat.maryland.gov · Verified on November 6, 2026
- Minnesota: revenue.state.mn.us, revisor.mn.gov · Verified on November 6, 2026
- Mississippi: dor.ms.gov · Verified on November 6, 2026
- Missouri: dor.mo.gov · Verified on November 6, 2026
- Montana: revenue.mt.gov, mca.legmt.gov · Verified on November 6, 2026
- Nebraska: revenue.nebraska.gov, nebraskalegislature.gov · Verified on November 6, 2026
- Nevada: tax.nv.gov · Verified on November 5, 2026
- New Jersey: nj.gov · Verified on November 5, 2026
- New York: tax.ny.gov · Verified on November 5, 2026
- North Carolina: ncdor.gov, ncleg.gov · Verified on November 6, 2026
- North Dakota: tax.nd.gov · Verified on November 6, 2026
- Ohio: codes.ohio.gov · Verified on November 6, 2026
- Oklahoma: oklahoma.gov · Verified on November 6, 2026
- Oregon: oregon.gov, oregonlegislature.gov · Verified on November 6, 2026
- Pennsylvania: pa.gov · Verified on November 6, 2026
- Puerto Rico: bvirtualogp.pr.gov · Verified on November 5, 2026
- Rhode Island: webserver.rilegislature.gov · Verified on November 6, 2026
- South Carolina: scstatehouse.gov, dor.sc.gov · Verified on November 6, 2026
- South Dakota: dor.sd.gov · Verified on November 6, 2026
- Texas: comptroller.texas.gov · Verified on November 5, 2026
- Vermont: tax.vermont.gov, legislature.vermont.gov · Verified on November 6, 2026
- Virginia: law.lis.virginia.gov · Verified on November 6, 2026
- Washington: dor.wa.gov · Verified on November 6, 2026
- West Virginia: code.wvlegislature.gov · Verified on November 6, 2026
- Wisconsin: revenue.wi.gov · Verified on November 6, 2026
- Wyoming: wyo-prop-div.wyo.gov, ptd.wyo.gov · Verified on November 6, 2026
What comes next?
With your home's value at hand, figure your tax at your county's rate or check your monthly payment.
Want someone to go over it with you? A HUD-approved counselor does it for free or at low cost. Find a counselor
More tools
Guides to read next
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- Property tax explained: how it is calculated and paid Who charges property tax, how it is calculated, how it is paid through escrow, which exemptions and appeals exist and what part is deductible.
- Adding a family member to your deed: gift tax and risks If you put a family member on your home's deed: the gift tax and Form 709, the tax basis, your mortgage, Medicaid and other risks to weigh first.
- Behind on property taxes: what happens and what to do What happens if you do not pay your property tax: penalties, interest, a lien, tax certificate or home sales, and how to catch up with your county.