Nebraska Homestead Exemption. Nebraska Homestead Exemption Application, Form 458.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. Homestead exemption applications must be filed annually between February 2 and June 30. Application forms are typically available beginning February 2. Complete the Homestead Declaration form. The form must be printed legibly in black ink. I also declare that I am entitled to the Nebraska homestead exemption and have not applied for a homestead exemption elsewhere in the state. Staff and volunteers at VAS are gearing up for another Homestead Exemption season. Applications will be mailed to past applicants in mid-February.