What must assessors provide to the county tax administrator annually?

The correct answer is that assessors must provide a detailed property tax report to the county tax administrator annually. This report is crucial as it includes significant data regarding property assessments, tax rates, and overall tax revenues, ensuring transparency and coordination in the property tax system. The information assists the county tax administrator in evaluating the effectiveness of the assessment process and is integral for fiscal planning and compliance with state mandates regarding property taxation.

While other options might seem reasonable at first glance, they do not capture the comprehensive and critical nature of the reporting requirements outlined in property tax law. The schedule of office hours, though relevant for accessibility, does not convey the financial health or assessment efforts in the county. A list of assessed properties might seem involved, but it does not give the broader insights on tax revenues and assessment trends that a detailed property tax report would. Lastly, a budget proposal is typically related to the financial planning of the assessor's office rather than a report related to property assessments and tax collections.