Do you need a donation receipt letter to claim a tax deduction? Donating to a New Yorkbased charity does not make you a New York State resident for income tax purposes!We've created this stepbystep guide on everything you need to know about creating a donation receipt letter for tax purposes. The receipt they handed me just had "2 bags, clothes" listed on it. As the donor, apparently I am supposed to fill in the value. Filling out the Goodwill donation receipt form is a straightforward process that helps you keep track of your charitable contributions for tax purposes. When you donate goods to The Salvation Army, all donation proceeds are used to fund our Adult Rehabilitation Centers. Click here to learn more! Donation receipts are important for a few reasons. 2) if you end up using it, you need to mention why you're doing so and how long you would in the donation receipt.