By Cecilia Hyun, Esq. Taxpayers usually appeal property tax assessments by proving a market value different from the assessor’s finding, but they should not overlook constitutional guarantees of uniform and equal taxation. As an ad valorem tax, real property taxes are charged on the value of the underlying real estate, usually measured as fair market value. In many states, taxpayers can demonstrate their property’s market value with a recent, arm’s-length sale price or by independent appraisal evidence. Two potential concerns emerge for taxpayers in an assessment appeal centered on market value: the declining reliability of data in volatile and rapidly changing markets, and the trailing nature of market data used by assessors. Those data issues can skew the mass appraisal techniques tax assessors often use, including comparisons to sales of similar properties, when assessing real property. Volatility, rapid change Commercial property data can lose relevancy with surprising speed in a volatile market. For example, office properties continue to bear the consequences of increased remote work and occupants’ shrinking footprints since the pandemic. Many office properties with mortgages maturing in 2023 have lost half or more of their previously underwritten asset values. Badge swipes tracked by Kastle Systems show an average …
