Active Money is paper currency, coins, and demand deposits which is being actively circulated. This is the money that banks lend to customers after US Treasury Department has passed on new currency onto them. To put simply, it is the money with the consumer. Since there is always a variable demand in money by the public depending on the time of the day, day of the week, season, and trends, active money is always fluctuating. There is more active money on certain days of the week compared to other days of the week.