In Wisconsin, what is the frequency of property reassessment required by law?

In Wisconsin, the law requires that property reassessment be conducted every five years. This timeframe ensures that property values reflect current market conditions and economic circumstances, while also providing a balance between maintaining accurate tax assessments and managing administrative resources effectively.

Reassessing properties every five years allows for the assessment roll to be reviewed on a reasonable schedule, ensuring that assessments remain fair and equitable over time. This also helps to avoid the burden of frequent reassessments that might overwhelm property owners and local governments.

Other options, such as annual or biennial assessments, would lead to increased administrative work and costs, impacting the efficiency of the assessment process. Reassessing properties whenever they are sold, while practical in some contexts, would not ensure uniform updates across all properties and could lead to disparities in property taxation.