Toll Free Number: 1.888.4.GOODWILL. When is a nonprofit donation tax receipt required?We're making it easier than ever to trace your Goodwill donation receipts. With our donation tracker, you will no longer have to hold on to your paper receipt. Assistance League of San Bernardino is a nonprofit 501(c)(3). Your contributions are fully tax deductible. The County Board of Supervisors accepts donations and gifts offered to the County for the use, benefit and advantage of the citizens of San Bernardino County. Contact Us. KVCR Public Media Logo. For help or questions regarding your donation,. Request a Donation Confirmation Receipt.