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. The Freeman Homestead is likely the first claim made and successfully proved up on under the Homestead Act of 1862. Beatrice will be joining other Midwest towns in creating its own version of the Homestead Act of 1862. Complete the Homestead Declaration form. The form must be printed legibly in black ink. Lewis and Clark Lake, near Yankton, is one of the state park system's most popular resort parks.