Transparency Issues in Nondisclosure States Affect Property Tax Assessments

In several U.S. states, private home sales where sale prices are withheld from public records may lead to discrepancies in property tax assessments. Experts indicate this practice could result in lower property taxes for some while increasing them for others, due to the lack of available transaction data.

Impact on Property Value Assessments

Typically, home sales create crucial data that help assess property values for tax purposes. However, in nondisclosure states, where privacy in transactions is prioritized, essential data become inaccessible. This lack of transparency can lead to unfair advantages, as those with access to undisclosed sales data might secure lower property tax bills.

“Property taxes are usually determined by a property’s assessed value, derived from various data points,” stated Assaf Harpaz, Assistant Professor at the University of Georgia School of Law. “In cases of off-market sales, transparency issues can disrupt assessments.”

The Role of Tax Assessors

Private listings are legal across all states, regulated by the National Association of Realtors. In most states, finalized sale prices become public record. However, about 12 states maintain confidentiality of final sales prices. This information gap creates significant discrepancies between off-market and on-market sales.

“Institutional actors might exploit the lack of public information for personal gain,” Harpaz noted. “This reduced transparency can skew assessments, often benefiting those with access to non-public market data.”

Sergio Garate, a real estate researcher at Emory University, explored these discrepancies in detail. He found that the knowledge gap resulting from private listings harms transparency and fairness.

Challenges for Tax Assessors

In nondisclosure states, tax assessors depend more on alternative data sources like prior assessments and comparable sales. Missing transaction prices and public listing history can complicate valuation, increasing error risks.

“When information layers are lacking, assessors have less market evidence. This complicates valuations, potentially leading to errors,” Garate said.

Consequences of Information Imbalance

As noted by Garate, property owners rarely challenge low assessments. This could lead to underassessment and consequently lower property tax contributions, especially problematic in nondisclosure states.

Garate’s research shows that different disclosure laws affect appraisals and mortgage performance. Nondisclosure states exhibit stronger appraisal biases and increased mortgage default risks among financially constrained borrowers.

“Information asymmetries impact transaction volumes, market participants, and bargaining power,” he added.

Case Study: New Mexico

New Mexico offers an example of the impact of nondisclosure laws. After shifting from full nondisclosure to partial disclosure in 2004, the state saw a 4% increase in annual tax revenue, suggesting previous laws had suppressed tax income due to ineffective high-value home taxation.

In conclusion, nondisclosure laws can skew tax burdens. With unavailable sale information, properties might be assessed below market value, transferring the tax load to others.