Explore the nuances of New York's Homestead Exexemption. Exemption applications must be filed with your local assessor's office.Though all property is assessed, not all of it is taxable. See a list of common property tax exemptions in New York State. You may get a letter asking you to certify or provide proof of your eligibility. We have experienced exemptions staff ready and willing to assist you in completing your forms. Deferrals. You may qualify for a deferral of your property tax liability if: You are 60 or older, or retired because of physical disability. These are the official forms for use in Surrogate's Court proceedings. Fill in the address of the property for which you are seeking an exclusion. 3.