Assembly Bill 603 mandates that cities, villages, or towns in Wisconsin must provide written notice to property owners at least seven days prior to a tax assessor entering their property for a tax assessment. This requirement aims to ensure that property owners are informed and can prepare for the assessment process.

The bill introduces a new section, 70.05 (4j), into the statutes, which specifically outlines the obligation of taxation districts to notify property owners of the assessor's intended entry. This legislative change is designed to enhance transparency and communication between local governments and property owners regarding property tax assessments.