Is there an expiry date to Shake Rewards earned? Pooven Raj Follow Yes, Shake Rewards will expire one (1) month from the time it was earned. Refer to the Shake rewards page to view the expiry date. Related articles What can I use the coins to spend on? What can I get from the Shake Rewards? How can I earn extra coins? How to redeem money in Boost wallet using coins? Where do I check my Boost Coins balance? Comments 0 comments Please sign in to leave a comment.