Drug Name- Print the complete brand or generic name of each prescription drug or supply being donated. Each individual drug must be listed separately.In-Kind Donation – Donation of Goods or Property. How to fill out the Support The Washington Center Donation Form? "Learn about 501(c)(3) donation receipt requirements, verification steps, and sample templates for tax-deductible donations. Here you will find access to relevant forms to help ensure a seamless experience. Please make checks payable to the Washington State Treasurer and mail to: Office of the State Treasurer. Attn: Donna Harrington. In this post, I'm breaking down how to write a donation letter.