You must file with the county or city where your home is located. Each county has different applications and required documents.HOMESTEAD EXEMPTION FILING DATES ARE JANUARY 1st THROUGH April 1st. Effective June 1, 2005 homestead exemptions may be filed for any time during the year. How do I sign up for Homestead Exemptions? Applications for Homestead Exemption are available in the Tax Assessors' Office. Property tax exemptions. How does a property owner apply for a low-income homestead exemption? Douglas County has additional exemptions. Attention: Before filling out form, download and save to your computer.