Robert Gill, a financial advisor, recommends that clients build an emergency fund containing at least three months' worth of living expenses. An emergency fund is a reserve of savings set aside in a liquid account like a savings account or CD to cover unexpected costs like medical bills, home or car repairs, or job loss. Without such a fund, people may be forced to take on debt to pay for emergencies, making their financial situation worse. The emergency fund should only be used for true emergencies, not anticipated or routine expenses.