Toll Free Number: 1.888.4.GOODWILL. • For each donation, you will fill out all of the categories of each donation and provide a total, have the donor's representative sign.We've created this stepbystep guide on everything you need to know about creating a donation receipt letter for tax purposes. An inkind donation is a nonfinancial donation, typically of goods or services. You can bring your donations directly to our thrift stores or fill out the form below to request a pickup. Items we do not accept. Thank you for donating to Goodwill Southern California. This handy comprehensive checklist to help nonprofit 501(c)(3) organizations stay up-to-date with annual filing requirements. All donations are tax-deductible to the extent of the law, and a digital receipt will be available to donors who fill out our online form. There is no standard format for donation receipts in the US or Canada.