The deadline to file all personal property returns is April 1st of each year. The Board of Assessors cannot grant extensions or relieve penalties.Exemption applications must be filed with your local assessor's office. See our Municipal Profiles for your local assessor's mailing address. Your county may have a website to download real and personal property tax forms. Property tax forms should be returned to your county tax officials. This is a list of some of the most common document types. There are many other types of documents for real estate and liens. If agricultural property is converted to a non-qualified use, no credit is allowed that year and recapture is triggered for the previous two taxable years.