If you want to know what exemptions are on your property, you may call either your local Assessor or the Madison County Office of Real Property Tax Services. If you would like to apply for an exemption, forms are available on the NYS Department of Taxation and Finance (link is external) website. For information about how to complete a form, contact your local Assessor. All forms must arrive at your Assessor's office by 1 March for everyone except those living in the City of Oneida. City of Oneida forms must be in by 1 May.