Thursday, April 19th, at 5:30 p.m., all SIS ATM machines will shut down for routine maintenance. This shut down will last just a few minutes, however some locations may experience an outage of up to an hour. We thank you for your patience in advance.

Feeling Ultimate?

Do you like paying fees? We don't and you shouldn't either! The SIS Ultimate Checking account can help with just that. So stop being fee'd and start being freed!

Your Card, Your Control

SIS Bank now offers SecurLOCK EquipTM, a mobile app that allows you to control your debit card, so you can feel secure in your transactions. Learn more today!

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Click to learn about the Account Benefits including:

Free AARP, Free LifeStages® ID theft protection, Fun Trips, Special Money Market Rates

Learn more about our Business Banking Bundle

Featuring products and services like Ultimate Business Checking, Small Business Loans and Employee Rewards


SIS Bank features mobile banking with

Mobile check deposit, balance inquiries, Pay People, and more

SIS Bank, listening to Maine and New Hampshire's banking needs every day!