Determine your home's current market value. Exemption applications must be filed with your local assessor's office.See our Municipal Profiles for your local assessor's mailing address. Two forms of identification or proof of address. You can get information about your property tax benefits, including: Application status, Current benefit amounts, Proposed benefit for the upcoming tax year. You must fill-in the property identification number in order to submit this application. Though all property is assessed, not all of it is taxable. See a list of common property tax exemptions in New York State. If you no longer qualify for the Homestead Exemption you must file the change or removal form. Online: Go to Homestead Tax Credit Eligibility Application page, and complete the online form.