The Yavapai County Assessor’s Office is responsible for locating, identifying and appraising all assessable properties subject to ad valorem taxes. The County Assessor is also responsible for notifying each property owner of their values, between January 1 and March 1 of every year. This requirement is met by mailing out Notice of Value letters and cards. If significant changes are made to the property after January 1, a property owner may receive a Notice of Change letter or card through the mail on or before September 30th.

The Assessor's Office strives to value all properties accurately, fairly and uniformly according to Arizona State Statutes  and Department of Revenue Guidelines. A list of all taxable properties, also known as the Tax Assessment Roll is kept by the Assessor.

The Assessor does not set tax rates or collect taxes. The tax rates are set by the County Board of Supervisors, and the taxes are collected by the County Treasurer's Office.