Mutual Benefits Member Portal Thank you for choosing Mutual Benefits and Merrimack County Savings Bank. Below are some of the most popular resources that our Mutual Benefits customers use frequently. New Member Resources Password Sign Up Ultimate ID® Sign Up (Premier Level Only) Existing Member Resources Log In Local Partners Refer A Friend Newsletter Other Member Benefits 5 Ways to save Call855.378.3898 Visitmymutualbenefits.com Downloadthe Mutual Benefits Personal Coverage App Showyour GenGold® card at local businesses Shareyour membership with up to 5 family members for no additional charge1