An emergency fund is an account that is used to set aside funds that will be needed in the event of a personal financial dilemma. The size of one emergency fund depends on one's income, dependants and lifestyle. It is recommended that one put aside at least three months worth of expenses.In the question given above, the monthly expenses is $2000.00, so the person has to put away at least $2000 * 3 months, which is equal to $6000.00.