Welcome to MassMutual Federal Credit Union!

Are you ready to become a MMFCU member? Our membership is open to all current employees of MassMutual, MassMutual Financial Professionals, their family members, and others who work on MassMutual campuses. 

To become a member, all you need to do is meet the above criteria, complete an application and make a deposit of $5 into MMFCU’s Basic Saving Account. Ready to get started?

Unwrap our Holiday bonus. If you or a family member joins during the holiday season, we will pay your required initial $5 primary share deposit for membership.

*This holiday season, we’re giving the gift of membership. When you or a family member joins MMFCU between November 03 and December 31, we’ll cover your initial $5 primary share deposit—so you or your family can start enjoying the benefits of credit union membership with one less thing to worry about. MMFCU is here to help you make the most of the season by offering better rates, personalized service, and a financial partner that puts you first.

*Offer valid for new memberships opened between November 03, 2025 and December 31, 2025. MassMutual Federal Credit Union will pay the initial $5 primary share deposit required to establish membership. Offer may be withdrawn at any time. Membership eligibility requirements apply. Member must meet all account opening criteria, including identity verification and agreement to MMFCU terms and conditions. Limit one paid share per new member.

We encourage family membership. When you open an account, your immediate family members – spouse, children, mother, father, brother(s), sister(s), and grandparents – are eligible to join. And once you’re part of the coMMunity, you’re always a member, regardless of your career, location, or if you retire.