Citi accounts separately do not have a monthly minimum balance requirement, but there is a minimum Total Relationship Balance (TRB) requirement. The Total Relationship Balance (TRB) is the combined average daily balance of a client's deposit and investment accounts. TRB is used to determine the monthly balance of an account. The minimum TRB requirement per month is P1,000,000, while the minimal fee falling below TRB is P1,000.