What if I can not sign into TMSB Online?
Turtle Mountain State Bank periodically has to perform updates to the Online Banking system. These updates are usually transparent to the end user or performed in the early morning hours between 12:00am and 3:00am to minimize customer inconvenience. Otherwise, TMSB Online should be available twenty-four hours a day, seven days a week. If you should experience problems signing into the system at any other time, please call us at (701) 477-5995.
