How property taxes are adjusted when property sells for more than the property is assessed for on a state by state basis
When Sellers set pricing and Buyers analyze investments, they need to take a close look how a property is valued after closing, for tax purposes.
This is important because in many states’ property valuations and therefore property taxes are immediately increased when a property is sold.
The mechanism for adjusting property taxes varies dramatically across the 50 states. We have listed below some approaches to property tax valuations and their increases.
Summary of Property Tax Adjustments Across the U.S.
The core principle of property taxation is that taxes should be based on a property’s fair market value. However, states implement this principle with different rules and limitations.
1: States with Immediate Market-Value Reassessment
In many states, the final sale price in an “arms-length transaction” (a standard sale between unrelated parties) is considered the definitive proof of market value.
The Rule: The new assessed value is generally reset to the purchase price, effective for the next tax cycle.
The Impact: The new owner’s tax bill can jump substantially compared to the previous owner’s, especially if the property had not been sold for many years or if values in the area appreciated rapidly.
Examples: States like
Colorado
Properties are reassessed on a two-year cycle, and assessors use market data, including recent sales prices, to determine value.
Florida
While homesteaded residential properties have caps, commercial properties do not receive “Save Our Homes” protection and are reassessed to market value.
Minnesota
State law requires all property to be valued at its market value, with sales ratio studies used to ensure accuracy.
New Hampshire
Property tax assessment is based on the full and true market value as of the assessment date.
Texas
The market value is determined by the assessor, and recent sales are a primary factor. Property owners have the right to protest if the assessed value exceeds market value.
Washington
Assessments are based on 100% fair market value, typically on an annual or multi-year cycle, with the sale price heavily influencing the new value.
In these states, the assessor uses recent comparable sales to determine value, and the most recent sale of the subject property is the best comparable. Buyers in these states must be careful to calculate their future tax burden based on their purchase price, not the seller’s historical taxes.
2: States with Assessment Growth Caps (No Trigger on Sale)
Some states attempt to protect property Buyers from steep, sudden increases in property taxes due to market fluctuations. These states limit how much the assessed value can increase each year, regardless of the market value.
The Rule: Annual assessment increases are capped at a specific percentage (e.g., 2-5%). The sale of the property does not automatically reset the value to the sale price.
The Impact: The gap between assessed value and market value can become very large over time, but the new buyer inherits an assessment that is still tied to the capped growth of the previous owner’s assessment. The tax increase upon sale is minimized.
Examples:
States like Colorado and Oregon have property tax laws in place, put there by voters, to limit large taxable value increases for property.
Michigan implements an assessment cap tied to inflation, where commercial property assessments have a limit on how much they can increase each year. Michigan has a system where the “taxable value” is capped annually until a sale occurs, but the cap remains in place for the new owner.
3: State with “Welcome Stranger” Provisions (Caps and Trigger on Sale) for commercial properties
This category represents a hybrid approach and the most significant potential for a sharp tax increase upon sale. Only California combines assessment caps for existing owners with a mandatory full reassessment when ownership changes hands for commercial properties.
The Rule: The assessed value for long-time owners is capped at a low annual growth rate (e.g., 2%). However, an “ownership change” (a sale) triggers an immediate reassessment to the current market value (the sale price). This is informally known as a “welcome stranger” tax because the new buyer (the stranger) is “welcomed” with a much higher tax bill than their long-tenured neighbors.
The Impact: A property that sells for much more than its prior assessed value will see its tax bill skyrocket for the new owner. This often leads to wildly different tax bills for identical neighboring properties.
Example:
California is the most famous example for its landmark Proposition 13, which limits assessment increases to 2% per year but mandates a full reassessment upon change of ownership.
4: States with Percentage-Based Assessments
In some states, properties are assessed at a uniform percentage of their fair market value. The sale price still determines the market value, but the assessed value for tax purposes is a fraction of that. In the U.S., the standard approach is to assess all properties, including commercial real estate, at 100% of their fair market value. However, some states utilize a fractional assessment ratio system, where properties are assessed at a uniform percentage of their market value.
The Rule: If a property sells for $300,000 and the state has a 50% assessment ratio, the taxable assessed value is $150,000.
The following states utilize such a system, where the assessed value (the value used to calculate taxes) is a set percentage of the actual market value for commercial properties:
Alabama
Commercial property is generally assessed at 20% of its market value.
Arkansas
Commercial property is generally assessed at 20% of its market value.
Mississippi
Properties are assessed at a uniform percentage of true value, with commercial properties typically assessed at 15%.
South Carolina
Commercial real estate is assessed at an assessment ratio of 6% of fair market value.
In these states, the sale price still determines the market value, but the taxable assessed value will be the specified percentage of that price.
Example:
For example, a commercial property in South Carolina selling for $1 million would have a taxable assessed value of $60,000 (6% of $1 million).
It’s important to differentiate these fractional assessment states from those that have assessment caps (like California’s 2% annual limit), which restrict the growth of the value rather than the percentage of market value used for the base assessment.
The Impact: The tax adjustment follows the market sale price proportionally.
5: No change of property taxes on sale of property
The Rule:
New Jersey and Pennsylvania have no adjustment to the market value of the property for taxes when a property is sold. They assess the marketplace either on a scheduled basis (New Jersey) or on a basis mandated by the counties. In other words, a buyer usually has a couple of years to prepare for a market assessment increase.
Conclusion
The adjustment of property taxes when a property sells for more than its assessed value is a localized and state-dependent process.
While the general principle across the U.S. is to eventually tax property based on its market value, the rules governing the timing and extent of that adjustment create vastly different financial outcomes for property investors.
Buyers should always investigate the specific local and state laws to accurately forecast their future property tax burden, especially if the seller has owned the property for a long time and has a low basis and low tax rate. When that happens a buyer will have a significant increase in their property taxes, which will make them and their existing and future tenants very unhappy. Especially when buying an investment property with gross leases in place where you cannot pass through tax increases, it could reduce your return on investment significantly.
Note: Research accomplished with Google and other search engines. This article was written with assistance from Google Gemini.
Clifford A. Hockley is Principal Broker at SVN | Bluestone, as well as the managing member of Cliff Hockley Real Estate Consulting, LLC. As a Certified Property Manager & Designated Managing Broker, Cliff has 41 years of experience in the brokerage and management of Real Estate companies. Bluestone and Hockley Real Estate Services manages condominium associations, multi-family, and commercial properties in the greater Portland area. He was focused on running the company and involved with investment property brokerage. He worked with financial institutions, governmental agencies, private investors, and not for profit organizations. He also has vast knowledge in budgeting, organizational management, and building structures. His previous experience includes over five years in accounting, production supervision for a manufacturing company, and work for state agencies in California.
Cliff grew Bluestone and Hockley Real Estate Services into a 100 employee company that managed over 2 billion dollars of real estate assets before he sold the company in 2021. He also supervised a sales team of over 15 real estate brokers for over 35 years. His monthly newsletter, QuickFacts has over 2,300 subscribers. He has been involved in numerous real estate transactions that include industrial, retail, office, and multifamily properties. Cliff has also written a book called “Successful Real Estate Investing; Invest Wisely, Avoid Costly Mistakes and Make Money” published by Morgan James Publishing in 2019.
Cliff has successfully coached real estate investors and CEOs located throughout the United States since 2015. He has acted as a sounding board to help untangle knotty issues that need an experienced outside opinion. He guides leaders who find it is “lonely at the top” and need an experienced hand to help set a strategic direction, sort out operational problems and want to talk through challenging business decisions.
He has served as an adjunct professor at Portland State University from 2028 – 2021, teaching classes in: Intro to Real Estate, Basic Real Estate Finance, Property Management as well as Real Estate Investment Fundamentals. He has instructed hundreds of students and believes that substantial preparation and active student engagement are crucial for learning and appreciating the field of real estate. Students appreciate his candor and real-world experience.
Among his many civic activities, Cliff served on the Board of Directors for the Portland Chapter of the Institute of Real Estate Management (IREM) and the Rental Housing Alliance of Oregon. In 2014 he was recognized by IREM as board member of the year, and in 2015 he earned an achievement award in brokerage from SVN International. In the years 2000 & 2003, he was recognized by IREM as Certified Property Manager of the Year.
