To learn more about SDR and e-SDR, go to Filing Form 571L Business Property Statement. Nebraska Personal Property Return must be filed with the County Assessor on or before May 1.County Assessor address and contact information. Most business owners will be able to take full advantage of e-filing. Please choose one of the following tax types. Property Owners may request an exemption from various Special Assessments. You can enter your schedule number, address or name of your business. Links to all forms required for filing personal property tax. The assessor also defends all of the property assessments before the Michigan Tax Tribunal. Contact the Assessing office with questions about property taxes and assessments.