Enjoy unlimited transactions with your checking account—available 24/7 nationwide.
Explore BankingOn Saturday, July 26, 2025, our Quincy Center branch will be closed due to a scheduled power outage in the building. Our closest branch is at 147 West 4th Street in South Boston. You can also do your banking at 90,000+ ATMs that are part of the SUM, Allpoint, and Moneypass networks. Additionally, you may bank online, on our mobile app, or at a shared credit union branch near you.
xMass Bay Credit Union is a full service financial institution that works to serve you. You get a say in our leadership, and we reinvest our profits back into better services and our community.
We have been a Greater Boston Credit Union since 1936. We know that getting ahead can be challenging enough these days—managing your finances shouldn’t add to your stress load. Choosing Mass Bay Credit Union means choosing to be part of a community that cares about each other and about you.
We want to pave the way for you to achieve your financial goals.