Learn how to create customized tax deduction letter for your church - with the help of 2 FREE samples and steps on how Donorbox can help! Request a Tax Donation Letter.Step 2 – Complete Donation Form: Download and fill out the stock donation form. Be sure to enter the percentage designation of the donation where indicated. Nonprofit or exempt organizations do not have a blanket exemption from sales and use taxes. Some sales and purchases are exempt from sales and use taxes. The main purpose of this letter is to acknowledge a one-time gift or donation made to the church. Institutional Property Tax Exemptions are available for real and personal property used for religious, hospital, scientific, or charitable purposes. The foreign religious organization should submit complete exemption documents, such as a founding document and IRS determination letter. To receive your 2024 Tax Donation letter.