Donors must have a bank record or written acknowledgment from the nonprofit before claiming a tax deduction for a charitable contribution. We've created this stepbystep guide on everything you need to know about creating a donation receipt letter for tax purposes.Include the nonprofit's EIN so the the donor can to check the charity's tax-exempt status with the IRS. It's possible, but I wouldn't recommend it. If You claim any charitable deductions, you better have receipts if you are audited. The donor must fill out a Form 8283 for all non-cash donations. Asking for donations doesn't need to be a daunting task for your organization. Here are 8 easy steps you can follow to ask for contributions. In this article, we'll cover how to write a donation letter. Use one of our six sample donation request letter templates to get started.