With respect to a broker call loan, it is the amount of money that a bank lends to a broker on account of a call loan. In a general context, call money is loaned in a short-term, interest-earning loan that the borrower has to pay back at the request of the lender, anytime over the course of the loan’s life. An example is the loans extended in inter-bank transactions.

The maturity period of such loans is one to fourteen days (overnight to a fortnight). Typically, one-day loans are known as call money, while loans extended for longer periods are referred to as notice money.