When completing your taxes, fill out Arizona Form 321 to claim your tax credit. By law, Goodwill Industries of Southern Arizona cannot tell you the value.A donation receipt is needed as proof of your donation for tax deduction purposes. You may contact us or call anytime 480-256-1001 to request a copy of your donation receipt. A tax receipt to record your donation is available here. Simply click on "Get Tax receipt" to download a copy to complete and keep for your records. After making their donation, if registered, a donor may immediately print their tax credit receipt. You'll receive receipts from the organizations you've donated to. Donation receipts are important for a few reasons. Your donation is eligible for the State of Arizona charitable tax credit.