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Beginning Friday morning, October 17, 2026 at 6 am, we will begin paving our South Boston branch parking lot.  The project will continue through Wednesday, October 21, 2026 at 11pm.  Access to the parking lot during these days will be limited and members may find it difficult to find parking.  Our full service branches in Everett and Quincy Center are available to use and we appreciate your patience as we make this important improvement for our members.
 
We will be towing unauthorized vehicles beginning Saturday morning October 17 at 5 am so the work crews can complete their work.
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REAL BANKING for REAL PEOPLE

Mass Bay Credit Union A Greater Boston Credit Union Since 1936.

Mass 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.

MassBay Benefits
Fully Insured deposits
Fully Insured deposits
As a member of both the National Credit Union Association (NCUA) and Massachusetts Share Insurance Corporation (MSIC), Mass Bay Credit Union offers members full insurance on deposits and interest, ensuring protection without limits or exceptions. The NCUA insures each member's deposits up to $250,000, with the MSIC providing extra coverage for deposit amounts beyond that.
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Lower Fees
Lower Fees
Keep more money in your pocket so you can put it towards the things that really matter to you.
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Competitive Rates
Competitive Rates
Earn more interest and pay loans off faster with competitive rates that tackle the big banks.
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Personal Service
Personal Service
Speak to real people who take the time to understand your goals and help make them happen.
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People Helping People

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.

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News & Events

South Boston Street Festival 2026
South Boston Street Festival 2026
South Boston Street Fest is coming up this month! We’re excited to join the South Boston community on Saturday, September 19th, for an afternoon of local food, shopping, music, and more. . Mass Bay Credit Union will sponsor balloon artist again this year, and we’d love to see you stop by!
Shred Event 2026
Shred Event 2026
Save the date! Mass Bay Credit Union’s free Shred Day is coming up on Saturday, October 3rd at our South Boston Branch. Join us anytime from 9:00 AM to 12:00 PM with up to five boxes of documents, and we’ll take care of the shredding for you.
2026 Scholarship Program
2026 Scholarship Program
Mass Bay Credit Union Charitable Foundation is offering four $1,000 scholarships to high school seniors enrolling in an undergraduate college program!
Winter Coat Drive
Winter Coat Drive
Our Winter Coat Drive is happening now through January 31st! Drop off new or gently used coats at any of our branches during business hours to support local nonprofits across Greater Boston that help people in need.
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