Trustmark National Bank's HighYield Money Market Account provides customers the banks highest rate of return on their money (based on their daily balance) with limited check writing. This account has features such as a minimum opening balance of $10,000, interest based on tiered balance at a competitive rate (subject to change daily), a $15.00 monthly service fee waived with minimum daily balance of $10,000 and funds that are immediately available. Additional features include a limit of six transfers per month (with no more than three by check, paper draft or debit card to a third party), up to 30 deposit items per month ($.075 per item over 30), no maintenance fee for the Trustmark Express ATM card and monthly statements.