All donors receive a charitable tax receipt or acknowledgement for all donated items upon acceptance of approved and completed form. A donor acknowledgement letter should include a few specific items to assist the donor and help your organization comply with IRS regulations.Please keep this written acknowledgement of your donation for your tax records. 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. Donating to charities and qualified nonprofit organizations makes you eligible for certain tax benefits and deductions. Donors must have a bank record or written acknowledgment from the nonprofit before claiming a tax deduction for a charitable contribution. The Donation Value Guide below helps you determine the approximate tax-deductible value of some of the more commonly donated items. What do you need to include in your donation acknowledgment letter? The Donation Value Guide below helps you determine the approximate tax-deductible value of some of the more commonly donated items.