It depends. The only way to lose rewards is by defaulting on a credit card or closing your account before you use your earned rewards.  Rewards credit cards are almost always associated with usage on the account.  For instance, some rewards programs offer one point or one mile for every dollar spent.  If you transfer your balance to another card and have already accumulated rewards on and continue to use your original credit card account, then yes, you will still enjoy the benefits of its rewards program.  If you don’t plan on keeping your old account open any longer, then you will not get any new rewards benefits, so make sure your new account offers a rewards program that you are happy with.