Donating to a New Yorkbased charity does not make you a New York State resident for income tax purposes! Do not file any exemption applications with the NYS Department of Taxation and Finance or with the Office of Real Property Tax Services.The Donation Value Guide below helps you determine the approximate tax-deductible value of some of the more commonly donated items. Your nonprofit organization may be eligible for a full or partial property tax exemption depending upon how the property is used. EXEMPT filers have registered with the NY Charities Bureau and meet conditions in Schedule E - Registration. Exemption for Charitable Organizations. These.