MAIL-IN DONATION FORM. We've created this stepbystep guide on everything you need to know about creating a donation receipt letter for tax purposes.Every dollar you give helps us feed hungry children, families and seniors in our community. Please give today to support our vision. Donation receipts are important! Here's how to create donation receipts your donors (and the IRS) will love. Why give to United Way? Where does your money go? Acknowledgment of "no goods or services were provided as part of this donation. All donations become the property of the Tarrant County Archives.