What is a backer? July 06, 2020 21:29 Updated Any contributor to a fund! We suggest inviting others to help maximize college savings for your beneficiaries! Check out - How many contributions can I have? Related articles How often can I contribute to a fund? How much can be invested each year? How many contributors can I have? Do I have to shop through the CollegeBacker offers page to get my Backer Bucks reward? I made a withdrawal. Where can I find my tax form?