How Often Are Property Taxes Assessed? Reassessment Cycles by State
TL;DR
Reassessment frequency varies wildly by state. Some states reassess every year. Others do it every 2, 3, 4, 5, or even 10 years. A handful of states leave it up to individual counties with no statewide mandate. The frequency matters because longer gaps between reassessments mean your assessed value could be far off from your home's actual market value, in either direction. Knowing your cycle helps you plan for potential tax increases and understand when to appeal.
Why Reassessment Frequency Matters
Your assessed value is a snapshot of your home's worth at a specific point in time. If that snapshot is 5 years old and your market has been rising 8% per year, there's a massive gap between your assessed value and current reality. When the reassessment finally hits, you could see your assessed value jump 40% or more in a single year.
On the flip side, if your home's value dropped and you're still being taxed on an outdated higher value, you're overpaying every year until the next reassessment catches up. Knowing when your next reassessment is coming lets you prepare, budget, and decide whether to file an appeal.
Reassessment Cycles by State
Here's how frequently each state reassesses property values. Keep in mind that even within states, some counties may operate on slightly different schedules.
| Reassessment Frequency | States |
|---|---|
| Every year | Alaska, California, Colorado, Connecticut, Florida, Georgia, Hawaii, Idaho, Iowa, Kansas, Kentucky, Maryland, Michigan, Montana, Nebraska, New Mexico, North Dakota, Oklahoma, Oregon, South Dakota, Utah, Washington, Wisconsin, Wyoming |
| Every 2 years | Arizona, Indiana, Minnesota, Mississippi, West Virginia |
| Every 3 years | Delaware, Illinois, Massachusetts, New Hampshire, Rhode Island, South Carolina, Vermont |
| Every 4 years | Maine, Missouri, Ohio, Tennessee, Virginia |
| Every 5 years | Arkansas, Louisiana, New York |
| Every 6-10 years | Alabama (every 4-6 years varies by county), North Carolina (every 4-8 years) |
| Varies by county | Nevada, New Jersey, Pennsylvania, Texas |
Note: "Every year" doesn't always mean a full reassessment. Some states update values annually using market trending factors rather than conducting a complete reappraisal. A full reappraisal with physical inspections might happen on a longer cycle within the annual update process.
What "Reassessment" Actually Means
There's a difference between a statistical update and a full reassessment:
Statistical Updates (Trending)
Many jurisdictions that "reassess annually" are actually applying percentage adjustments to existing values based on market trends. If homes in your area sold for 5% more this year than last, the assessor might increase all values in your neighborhood by 5%. This is quick and inexpensive but can miss property-specific changes.
Full Reappraisal
A full reappraisal involves reviewing each property's characteristics, comparing recent sales, and potentially inspecting properties. This is more accurate but much more expensive and time-consuming. Counties might do a full reappraisal every 4-6 years while using statistical updates in between.
Physical Inspection Cycles
Some states require assessors to physically inspect every property within a certain timeframe. New York, for example, doesn't mandate a statewide reassessment cycle, but many municipalities reassess every 5 years. Some towns in New York haven't done a full reassessment in decades, leading to enormous inequities.
How Assessment Caps Interact With Reassessment Cycles
Several states cap how much your assessed value can increase each year, regardless of market changes:
| State | Annual Cap | Notes |
|---|---|---|
| California | 2% | Reset to market value on sale (Prop 13) |
| Florida | 3% | Homesteaded properties only (Save Our Homes) |
| Michigan | 5% or CPI | Reset to market value on sale |
| Oregon | 3% | Based on 1995 values (Measure 50) |
| Texas | 10% | Homesteaded properties (was 10%, check for 2026 changes) |
| Arkansas | 5% | Homesteaded properties |
| New Mexico | 3% | Residential properties |
In cap states, annual reassessments happen, but the increase is limited. The practical effect is that longtime homeowners pay taxes on a value well below market value. When the property sells, the cap resets and the new owner gets hit with the full current market value.
What Triggers a Reassessment Outside the Regular Cycle
Even between scheduled reassessments, certain events can trigger a revaluation of your specific property:
- Sale of the property: In many states, a sale triggers reassessment to the purchase price or current market value.
- New construction: Building an addition, new structure, or major renovation prompts a reassessment of the improvement.
- Building permits: Pulling a permit flags your property for review.
- Change of use: Converting a single-family home to a rental, or residential to commercial, often triggers a reassessment.
- Subdivision or combination of parcels: Splitting or merging lots requires new valuations.
- Loss of exemption: If you lose a homestead or other exemption, the effective taxable value changes even if the assessed value doesn't.
States That Don't Mandate Reassessment
Some states leave reassessment schedules to individual counties or municipalities, which can create significant problems:
New Jersey
New Jersey has no statewide reassessment mandate. Some municipalities haven't done a full reassessment in 20+ years. Between reassessments, the county uses equalization ratios to adjust, but individual property inequities persist. This means two identical homes on the same street can have vastly different assessed values.
Pennsylvania
Pennsylvania is notorious for infrequent reassessments. Some counties haven't reassessed since the 1990s or earlier. Allegheny County (Pittsburgh) reassessed in 2012 after a 10+ year gap. This means assessments are based on decades-old values, creating huge inequities.
New York
While New York technically allows annual reassessment, many municipalities avoid it due to the cost and political backlash. Some towns are using assessed values based on data that's 10-20 years old.
How Reassessment Affects Your Tax Bill
A reassessment doesn't automatically mean higher taxes. Here's why:
When all properties in a jurisdiction are reassessed, the total assessed value changes. If overall values went up 20%, the taxing authority can (and in some states must) reduce the tax rate so that total revenue stays roughly the same. This is called "revenue-neutral" rate adjustment.
In practice, your individual bill changes based on how your home's value changed relative to the average. If your home went up 20% and the average went up 20%, your bill stays about the same. If your home went up 30% while the average went up 20%, your bill goes up because you're now a bigger slice of the total pie.
That said, many jurisdictions use reassessments as an opportunity to increase revenue, so total tax collections often do rise after a reassessment.
Preparing for a Reassessment
If a reassessment is coming to your area, here's how to prepare:
- Review your property data. Check the assessor's records for your home before the reassessment. Correct any errors in square footage, room count, or property features now.
- Document any condition issues. If your home has problems that reduce its value (foundation issues, needed repairs, environmental concerns), document them with photos and estimates.
- Track comparable sales. Start saving data on what similar homes in your area are selling for. This becomes your ammunition for an appeal if the new value comes in too high.
- Know your deadlines. Once you receive the new assessment notice, you'll have a limited window to appeal. Mark the deadline on your calendar as soon as you know the reassessment is happening.
- Budget for changes. If your area has been appreciating rapidly, expect an increase. Run the numbers using a property tax calculator so the new bill doesn't catch you off guard.
Frequently Asked Questions
Can I request a reassessment of my property?
Most states don't allow homeowners to request a reassessment. However, you can file a property tax appeal, which effectively accomplishes the same thing by challenging your current assessed value. Some states do have provisions for requesting a review if you can show your assessment is significantly off.
Does my assessed value automatically go up every year?
Not necessarily. In years between reassessments, your assessed value typically stays the same unless triggered by a sale, new construction, or other event. In states with annual reassessments, values can go up or down based on market conditions. Assessment caps limit annual increases in some states.
Why hasn't my property been reassessed in years?
Some states don't mandate regular reassessments, and some jurisdictions avoid them because they're expensive and politically unpopular (voters don't like higher tax bills). If your area hasn't been reassessed recently, your assessment may be significantly out of date.
Will a reassessment always raise my taxes?
No. If your home's value increased less than the average for your area, your taxes could actually decrease after a reassessment. Also, many states require "truth in taxation" or revenue-neutral rate adjustments that lower the rate when values increase, keeping total revenue roughly the same.
What's the difference between reassessment and equalization?
Reassessment is the process of revaluing individual properties. Equalization is a process where a state or county applies a factor to bring assessment levels in line across different jurisdictions. For example, if County A assesses at 90% of market value and County B at 80%, the state might apply equalization factors so state-level calculations are fair.
Does a reassessment mean someone will come to my house?
Not always. Many reassessments are done using sales data, aerial photography, and computer models without physical inspections. Some states require periodic physical inspections (every 5-6 years), but the assessor may only note exterior conditions. Interior inspections are rare and usually require your permission.
How do I find out when the next reassessment is in my area?
Contact your county assessor's office. They can tell you when the last reassessment was done and when the next one is scheduled. This information is also sometimes available on the assessor's website or through local government announcements.
Can I appeal during a reassessment year?
Yes, and reassessment years are often the most important time to appeal. When values change, the window to challenge the new number is typically 30-90 days after you receive your assessment notice. Don't wait for the tax bill; the appeal deadline is tied to the assessment notice.
Does selling my house trigger a reassessment in every state?
No. Sale-triggered reassessment is common in states like California, Michigan, and Florida, but many states reassess on a fixed schedule regardless of sales. In non-trigger states, a sale is just one data point the assessor may use during the next regular reassessment.
What happens if the assessor never inspects my property?
If the assessor hasn't inspected your property, they're relying on whatever data they have on file, which may be outdated or inaccurate. This can work for or against you. If your records show an improvement that was never made, or miss deterioration that's occurred, the assessment will be wrong. Review your property record card to catch these issues.
Reassessment Coming? Be Prepared.
A reassessment can mean a big jump in your tax bill, especially if your area hasn't been reassessed in years. PropertyTaxFight helps you understand your new assessment, compare it to the market, and fight back if the number is too high. Don't wait until after the deadline to act.