Does Checkout 51 have a referral program? Checkout 51 Updated September 18, 2018 17:14 Follow Our referral program is in beta testing and not currently available to all members in the US and Canada. Related articles Can I use food stamps to pay for products I’m claiming for Cash Back? Can I earn Cash Back for e-receipts? How long do I have to upload my receipts? Will Checkout 51 be available on other platforms? Can I update my location? Comments 0 comments Article is closed for comments.