Is the Homestead form difficult to understand and fill out? No. It simply asks for basic information.You must file a document called a "Declaration of Homestead". Exemption applications must be filed with your local assessor's office. See our Municipal Profiles for your local assessor's mailing address. Many standard forms are available below. All forms are categorized into their respective departments. You can get information about your property tax benefits, including: Application status, Current benefit amounts, Proposed benefit for the upcoming tax year. Though all property is assessed, not all of it is taxable. See a list of common property tax exemptions in New York State.