The annual Personal Business Property statements ( 82520B ) will mail on January 5th 2018. The forms are due back in the office by April 1st. Since April 1st falls on a Sunday in 2018, forms will be accepted and considered timely filed until 5pm on Monday April 2nd. through requires that persons, firms, corporations or associations owning, controlling or having possession of taxable personal property file a correct list of all such personal property in the county. If your business/organization is not currently filing with the assessor and needs to do so, a form can be mailed to you up until February 1st. For additional information regarding personal property, please see the Business Personal Property page under the Divisions/Personal Property link or call (520) 724-8700.