Disabled applicants must complete form DTE 105E,. The regular filing deadline is February 15th to receive the full exemption.Complete a homestead declaration form. A homestead exemption application form ("DTE 105A") is available from the Ohio Department of Taxation. Welcome to the homestead estimated amount page for Single Family Detached homes for Santa Clara county. To claim the exemption, the homeowner must make a one-time filing with the county assessor where the property is located. There are some exemptions available to taxpayers to lower their property tax bill. However, the automatic exemption only protects the homeowner's equity in the property under a forced sale due to the request of a creditor. Buy a declared homestead form from an office-supply store, or download a form from the Registrar-Recorder's website. You are eligible for the homestead exemption if the trust agreement contains a provision that says you have complete possession of the property.