Our two great banks combined deliver more products, more services and greater performance to ALL of our customers.
The merger and system integration of Main Street Bank and Superior National Bank will be completed.
Some Personal Banking product names are being refreshed.
Listed below are important dates to know regarding upcoming changes to your accounts. Dates for specific items are subject to change and will be updated regularly on this web page.
Conversion Guide Booklet
Account Related Letter
Debit Card Conversion
Banking Locations Info
Services Conversion Timeline
Business Online Banking Resource Center
Intuit Quicken and Quickbooks Users Information
Full System Conversion
February 22, 2021
Superior National Bank and Main Street Bank see an opportunity to enrich the banking experience for customers in every market the banks serve. The two great banks combined deliver more products, more services and greater performance to all customers. The full system conversion over the weekend of February 19-22, 2021 will enable the organization to fully function as a single, stronger bank for every customer.
Yes, Superior National Bank is currently updating its brand to compliment the growth of its products and service offerings to all customers.
Refer to the timeline on pages 6 and 7 of the Conversion Guide Booklet or on this integration website. If you use Online Banking, Mobile Banking, Bill Pay, External Transfers or Telephone Banking, there is information you will need to know.
You will find information on how to log in to Superior National Bank’s digital platforms in this section of the booklet.
No. Customers will still be able to visit Bingham Farms and Troy branches as normal after the conversion.
Yes. Your current Main Street Bank debit card will continue to work. You can also visit an Allpoint® ATM for fee-free cash.
Please note that all branches will be closed during conversion weekend.
You can continue to use your current Main Street Bank debit card. We will send you a replacement Superior National Bank debit card after integration/conversion.
No, your account number will stay the same.
CDs: Rates and terms of existing Main Street Bank CDs will not change until maturity.
Flex-Savings Account: Any promotional rates will be honored until their scheduled expiration.
All other account types: Please call Superior National Bank at 866.482.0404 to inquire about deposit rates.
Yes. There are no changes to the Money Service Business accounts planned at this time.
Kasasa is an independent service provider that worked with Main Street Bank. Superior National Bank does not have a relationship with Kasasa. Your balances have been transferred to our most similar account. Activity requirements, rewards, and interest rates that were associated with Kasasa no longer apply to your account. Please refer to the conversion packet being sent to you for information regarding your new Superior National Bank account.
No. Your current direct deposits and automatic payments will continue to process. For new direct deposits or automatic payments after February 22nd, please set them up using Superior National Bank’s routing number: 091101879
Some customers will receive more information. If you are a business customer who uses remote deposit capture or originates ACH files, you will receive a separate mailing.
Give us a call at 1.866.482.0404 and we will connect you with a member of our Trust and Wealth Management team. Our skilled team is happy to assist you with any questions you may have.