https://www.chase.com/index.jsp?pg_n...-checking-page

Monthly Service Fee
None when you have 5 or more debit card purchases (withdrawals from the ATM or cash advance transactions do not qualify) or a direct deposit post to your account during each statement period. The direct deposit qualifier changes to at least one direct deposit of $500 or more and takes effect with the statement periods beginning February 8, 2011. Two or more direct deposits that add up to $500 or more but do not individually equal or exceed $500, do not qualify; otherwise $6 per month