Trustmark National Bank's Relationship Checking Account is interest-bearing and is designed to reward loyal customers for balances maintained in a variety of deposit or loan products by providing value-added benefits. The minimum opening balance is $100, and the minimum balance to avoid a monthly service fee of $20 is $25,000 in combined minimum daily deposit and/or outstanding loan balances. Account benefits include a higher interest rate based upon balance tiers, premium rates available when opening a HighYield Money Market Account, free supply of Trustmark wallet checks , TrustTouchWeb Internet Banking with Bill Pay. Additional features include optional Overdraft Protection attached to a Trustmark Visa or MasterCard account and free ATM access at non-Trustmark machines (conditions apply).