Property tax caps by state fall into three basic categories: assessment caps that limit how fast your home’s taxable value can grow, rate or bill caps that limit what you pay as a percentage of value, and levy limits that restrict how much total revenue a local government can collect from all property owners combined. Some states stack two or three of these together. A few impose none. Which type applies to you determines whether the protection follows your house, your tax bill, or your city’s budget, and each type has its own triggers that can weaken or eliminate the benefit.
Assessment Caps on Taxable Value Growth
Assessment caps separate your home’s taxable value from its market price. Even when neighborhood values spike, the government can only raise your taxable value by a fixed percentage each year. Because your tax bill is calculated from that base number, controlling the base is the most direct form of protection for an individual homeowner.
California’s Proposition 13 is the best-known example. Under Article XIII A of the state constitution, taxable value can increase no more than 2% per year, regardless of what the market does.1Justia. California Constitution Article XIII A – Tax Limitation – Section 2 The cap stays in place as long as you own the property. When the home sells or changes ownership, the assessor resets taxable value to the purchase price and the 2% clock starts again.2California Legislative Information. California Constitution CONS Article XIII A – Tax Limitation Longtime owners in fast-appreciating markets can end up paying taxes on a fraction of their home’s actual worth.
Florida limits annual assessment increases on homestead properties to the lesser of 3% or the change in the Consumer Price Index. Like California, the cap resets to full market value after a sale or other ownership change.3The Florida Legislature. Florida Code 193.155 – Homestead Assessments Florida caps non-homestead properties at 10% annual growth, though that protection also disappears after a qualifying improvement or ownership change.
Arizona limits increases in its “limited property value” to 5% per year under Proposition 117, which amended the state constitution and took effect in 2015.4Arizona Department of Revenue. Limited Property Value Oregon’s Measure 50 caps annual assessed value growth at 3%, with exceptions for new construction and major improvements worth more than $10,000 in a single year or $25,000 over five years.5Oregon State Legislature. The New Property Tax System
Texas caps homestead assessment increases at 10% per year. In 2023, the state added a 20% annual cap for non-homestead commercial and residential properties valued at $5 million or less. Michigan’s Proposal A limits annual assessment growth to the lesser of 5% or the rate of inflation, with a full reset to market value on sale.
Rate and Bill Caps
Some states cap the tax rate itself or put a hard ceiling on your total tax as a percentage of property value. These protections restrict what taxing authorities can charge per dollar of value rather than the value itself.
Indiana’s approach is straightforward. A 2010 constitutional amendment caps total property tax liability at three tiers:
- Homesteads at 1% of gross assessed value
- Other residential and agricultural property at 2% of gross assessed value
- Commercial and other real property at 3% of gross assessed value
When the combined tax bills from all local taxing districts exceed these percentages, the taxpayer receives a credit that reduces the bill to the cap. It does not matter how many districts levy taxes on a parcel. The total cannot exceed the constitutional ceiling.
Nevada applies its cap directly to the tax bill rather than the rate. An owner-occupied primary residence cannot see its property tax bill increase by more than 3% from the prior year. Other properties, including rentals, commercial buildings, and vacant land, face an 8% cap on annual tax bill growth. New construction receives no cap in its first year but picks up the protection the following year.
Michigan also uses statutory rate limits under the Property Tax Limitation Act, which restricts the total millage that all local taxing entities combined can levy against a property. Increases beyond the statutory ceiling require voter approval.6Michigan Legislature. Michigan Compiled Laws 211.201 – Property Tax Limitation Act
Levy Limits on Total Revenue
Levy limits focus on the total revenue a jurisdiction can collect from all property owners combined, not on individual bills. Even if values rise sharply across a city or county, the government cannot pocket the windfall. It has to stay within a growth formula, usually pegged to inflation or a flat percentage.
Massachusetts Proposition 2½ caps total property taxes in any city or town at 2.5% of the community’s full assessed value, and separately limits the annual growth in a municipality’s total tax levy to 2.5% over the prior year’s amount.7General Court of Massachusetts. Massachusetts General Laws Part I, Title IX, Chapter 59, Section 21C The dual cap means a community cannot exceed the ceiling even if it has room under one provision, if the other binds first.
New York’s property tax cap limits a local government’s annual levy increase to the lesser of 2% or the rate of inflation, with adjustments for new construction and other changes to the tax base.8New York State Senate. General Municipal Code 3-C – Limit Upon Real Property Tax Levies by Local Governments Illinois restricts levy growth through its Property Tax Extension Limitation Law, which caps annual increases at the Consumer Price Index or 5%, whichever is lower.9Illinois Department of Revenue. Property Tax Extension Limitation Law Changes
Washington limits individual taxing districts to 1% annual levy growth. Colorado’s Taxpayer Bill of Rights (TABOR) ties allowable revenue growth to inflation plus a measure of community growth: enrollment changes for school districts and net new construction value for cities, counties, and special districts. Collections above the TABOR limit must be refunded, and the mill levy must be reduced to prevent future overcharges.
Rollback Rates
Several states use a mechanism called a rollback rate (sometimes called a “no-new-revenue rate” or “effective rate”) to prevent local governments from collecting a revenue windfall during reassessment years. When a countywide reappraisal pushes assessed values higher, the rollback rate automatically reduces the tax rate so the jurisdiction collects roughly the same total revenue as the year before, excluding new construction. Local officials can exceed the rollback rate, but doing so typically triggers public notice requirements, mandatory hearings, or voter approval, depending on the state. Texas, Georgia, and South Carolina all use versions of this approach. A rising market does not automatically translate into a bigger government budget without an affirmative decision to raise taxes.
States Without Property Tax Caps
A small number of states impose no assessment limits, rate limits, or levy limits. Maine previously had a levy limit through its property tax stabilization program, but that program was repealed. Tennessee has no statutory property tax cap at all. In these states, local governments have relatively unchecked authority to raise property taxes, and individual assessment appeals and homestead exemptions become the primary tools available to taxpayers. Without an automatic backstop, staying informed about local budget hearings and reassessment cycles matters more.
What Resets or Bypasses Your Cap
Assessment caps only protect you as long as nothing triggers a reassessment to full market value. The most common trigger is a sale. In nearly every state with an assessment cap, when a property changes hands, the taxable value snaps to the current purchase price or market value. A home assessed at $250,000 under a long-running cap might reset to $500,000 for the new buyer, dramatically increasing the tax bill overnight. This is the main reason buyers in capped states sometimes face much higher taxes than the previous owner paid on the same property.
Major renovations and additions are the other common trigger. Adding a bedroom, finishing a basement, or building a detached accessory dwelling unit qualifies as a taxable improvement in most states, and appraisal districts identify these changes through building permits and aerial imagery. In Oregon, improvements valued above $10,000 in a single year allow the assessor to add that new value on top of the capped assessed value.5Oregon State Legislature. The New Property Tax System In Florida, a non-homestead improvement that increases value by at least 25% removes the 10% cap entirely for that year. Routine maintenance generally does not trigger a reassessment; replacing a roof, repainting, or swapping out appliances for similar-quality ones is typically treated as preserving existing value.
Carrying Your Cap to a New Home
One drawback of assessment caps is the lock-in effect. Homeowners accumulate large savings over time, but selling the home means losing those savings and starting over at market value. A few states have addressed this by allowing portability, the ability to carry your accumulated tax benefit to a new primary residence.
Florida’s portability provision is the most developed. If you sell your homesteaded property and buy a new one, you can transfer up to $500,000 of the difference between your assessed and market values to the new home. You have three years after abandoning the old homestead to establish a new one, and you apply for portability by March 1 of that year.10Miami-Dade County Property Appraiser. Portability Divorced spouses splitting a jointly owned homestead can divide the benefit by filing a designation form. If you miss the portability deadline but later qualify for homestead, you can still apply, though you will not receive refunds for the years you missed.
California passed Proposition 19 in 2020, allowing homeowners 55 and older, severely disabled individuals, and wildfire victims to transfer their existing Proposition 13 tax base to a replacement home anywhere in the state. Georgia’s county-level homestead exemptions sometimes allow a value freeze to carry forward, though the rules vary by county. Most other states with assessment caps do not offer portability, so a move within the same state resets the clock entirely.
Homestead Status Unlocks the Strongest Protections
The strongest property tax protections, particularly assessment caps and lower rate ceilings, are almost always reserved for owner-occupied primary residences. Investment properties, vacation homes, and commercial real estate typically receive weaker protections or none at all. Indiana’s 1% cap applies only to homesteads; rental properties face a 2% cap, and commercial properties 3%. Florida’s homestead cap is 3% or CPI, while non-homestead properties face the more generous 10% ceiling.
To receive homestead protections, you generally have to file an application with your local assessor’s office. There is typically no fee. The application deadline varies by state but commonly falls between January and March of the tax year. In most states, you must own and occupy the property as of a specific date, often January 1. Ohio, for example, requires the applicant to own and occupy the home as their principal residence as of January 1 of the application year.11Ohio Department of Taxation. Real Property Tax – Homestead Means Testing
Failing to file costs real money. The homestead exemption is not automatic in most states, and every year that passes without the application is a year of higher taxes you cannot recover. If you move out and convert the property to a rental without notifying the assessor, you risk back taxes, penalties, and loss of the cap benefit. Assessors in many jurisdictions actively audit homestead rolls, and the consequences of a false or outdated filing can be steep.
When Local Governments Can Legally Exceed the Cap
Every state with a property tax cap includes some mechanism for exceeding it, because emergencies and essential infrastructure sometimes cost more than the formula allows. The override process varies in difficulty, and how it works in your state tells you how durable your cap really is.
New York requires a 60% supermajority vote of the local governing body to override the property tax cap for a given fiscal year.12Office of the New York State Comptroller. Property Tax Cap Reporting for Local Governments The override applies only to one year’s budget, not permanently. Illinois requires taxing districts to pass a voter referendum to increase collections beyond the extension limitation, with four specific referendum types available depending on the purpose of the increase.9Illinois Department of Revenue. Property Tax Extension Limitation Law Changes Massachusetts allows overrides through a ballot question, and the override becomes a permanent addition to the levy base unless structured as a one-time “debt exclusion.”
Many states also require “truth in taxation” public notice before a local government can adopt a tax rate or levy above the prior year’s level. These laws typically mandate newspaper publication and public hearings, giving residents a window to object. Wisconsin allows municipalities to adjust their levy limit upward for unreimbursed emergency expenses, such as costs from a natural disaster that insurance and federal aid do not cover.13Wisconsin Department of Revenue. County and Municipal Levy Limits Caps provide a default ceiling, not an absolute one. Attending local budget hearings is the most reliable way to know when an override is being proposed and what it would cost you.