Nebraska Homestead Exemption. Nebraska Homestead Helpline: (888) 475 - 5101.Nebraska Homestead Exemption Application, Form 458. A homestead exemption protects at least part of the value of the homestead from creditors. File this form and all supporting documentation with the appraisal district office in each county in which the property is located generally between Jan. Complete the application process. Douglas County has additional exemptions. The Nebraska Homestead Exemption program is a property tax relief program that reduces all or a portion of taxes for homeowners in Nebraska who occupy a home. How to Apply for Homestead Exemptions Homestead applications must be filed with the county assessor after February 1, and on or before June 30 of each year. A homestead exemption can block the forced sale of a primary residence and provide tax relief for surviving spouses.