What do you need to include in your donation acknowledgment letter? Tax-exempt status statement: Statement that the organization is a 501c3 tax-exempt organization.Note: This form must be downloaded to your device in order to be filled out properly. It must be opened in Adobe Acrobat Reader. A donation acknowledgment letter (sometimes called a donation receipt or thankyou letter) is an email or paper that recognizes a charitable contribution. Simply input your zip code and complete the form that follows. If pickup dates are available, you will then be able to schedule your pickup online. A donation acknowledgment letter (sometimes called a donation receipt or thankyou letter) is an email or paper that recognizes a charitable contribution. Although executors, administrators and trustees are entitled to have their accounts settled in court, it is common practice to forego a court proceeding in the. You will always receive an e-mailed receipt of your donation.