On Tuesday, November 24, an update to your Business Mobile Banking App will be available for you to download. This update contains important security features that need to be established. If you have automatic updates enabled on your iPhone®, Tablet, or Android device then no further action is required. If you do not have automatic updates enabled, please download the updated Cambridge Savings Bank Business Banking App from the App Store® or get it on Google PlayTM. 
If you have any questions, commercial clients please call Client Services at 617.441.7051 Monday through Friday (excluding Federal Holidays). 8:00am – 5:30pm. Small Business clients, please call the Customer Contact Center at 888.415.5626 Monday through Friday (excluding Federal Holidays) 9:00am-6:00pm or on Saturdays from 9:00am to 3:00pm.

Contact Us


For answers to your banking needs, call us 24 hours a day, 7 days a week. You can check balances, verify the dates and amounts of your most recent transactions and more!

800.864.BANK (2265)


Need to report a lost or stolen debit card? We’ve got you covered.

Choose from any of the options below to report a lost or stolen debit card:

1We can be reached via phone or email: Monday - Friday 8am to 6pm, Saturday 9am to 3pm, or Sunday, closed for calls, email support available from 10am-1pm. If you need assistance outside of business hours, please call the number listed above and follow the system prompts for debit card inquiries to reach our 24/7 debit card support team.


Mon - Fri 8am to 6pm

Saturday 9am to 3pm

Sunday closed for calls, email support available from 10am to 1pm

We are closed on federal holidays.



For Hearing Impaired Customers 



Non-sensitive inquiries


Secure Emails

Cambridge Savings customers who are enrolled in Online Banking can submit secure emails that include account specific information by logging into Online Banking and selecting the “Secure Email” option from the navigation bar. (It is located right under the “Sign Off” link). Please remember that you should never submit account and personal information through regular email as it may not be secure.


Deposits by mail

Cambridge Savings Bank
P.O. Box 380206
Cambridge, MA 02238-9906


  • January 01, New Year's Day
  • January 20, Martin Luther King Jr. Day
  • February 17, Presidents' Day
  • April 12, Easter
  • May 25, Memorial Day
  • July 04, Independence Day
  • September 07, Labor Day
  • October 12, Columbus Day
  • November 11, Veterans Day
  • November 26, Thanksgiving Day
  • December 24, Christmas Eve - closing at 3:00pm
  • December 25, Christmas Day
  • December 31, New Year's Eve - closing at 3:00pm

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