If you are a Middlesex customer, simply download and complete the enrollment form to signup for Business Online Banking.
Business Online Banking Enrollment Form
Once the enrollment form is received, a Login ID and temporary password will be assigned for each user identified.
The enrollment form can be faxed to 508-389-9385 or sent to the following address:
Middlesex Savings Bank
Online Banking Department
PO Box 5210
Westborough, MA 01581-5210
If you have questions, please call 1-877-463-6287, option 2 to speak to a Business Specialist. Faxed enrollments will be acknowledged within 48 business hours.