Nebraska Personal Property Return must be filed with the County Assessor on or before May 1. County Assessor address and contact information.The Property Appraiser's office determines the assessed value and exemptions on the tax roll. Tangible Personal Property Tax is an Ad Valorem tax assessed against the furniture, fixtures, and equipment located in businesses and rental properties. See states with the highest property taxes. Exemption applications must be filed with your local assessor's office. See our Municipal Profiles for your local assessor's mailing address. Search and select the business and then click on "Datasheet. No information is available for this page. Do you want to pay lower property taxes on Long Island?