Generally, you must file a New York State resident income tax return if you are a New York State resident and meet any of the following conditions. Include the nonprofit's EIN so the the donor can to check the charity's tax-exempt status with the IRS.We've created this stepbystep guide on everything you need to know about creating a donation receipt letter for tax purposes. Understand what a charitable donation is and how to claim a tax deduction without a tax receipt with IRS Form 8283.