In this post, I'm breaking down how to write a donation letter. By signing below, I authorize the Town of Hillsborough to add the above monthly pledge to my utility bill.Account Holder's Signature: Date: 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. This step-by-step guide will help you fill out the donation tax receipt and get things in order for tax season. This document provides a sample format for a letter acknowledging an in-kind contribution or donation. Try our free donation request letter templates! Download our standard template or check out our example letters for events, auctions, schools, and more. We've compiled common types of donation requests, plus carefully crafted templates that your team can use to jumpstart your outreach.