Reserve Bank of Australia Investigates Missing Banknotes

The Reserve Bank of Australia is investigating the disappearance of a significant portion of the nation's physical currency ^[1].

This gap in accounting raises concerns about large-scale hoarding or the use of cash for illicit activities in an increasingly digital economy. As the RBA manages the money supply, the inability to track a percentage of the currency in circulation creates a blind spot for economic monitoring.

According to the RBA, the bank prints $2 billion worth of $100 notes each year ^[1]. Despite this consistent supply, the central bank estimates that between nine and 14 percent of Australia's cash is currently missing or unaccounted for ^[1].

Physical currency remains a component of the economy, though its dominance has faded. Cash is currently used in about one in five transactions ^[1]. The disparity between the volume of notes printed and the amount recorded in the system suggests that billions of dollars are being held outside of traditional banking channels.

Reporter Julian Fell of ABC Story Lab examined the mystery of these missing notes ^[1]. The investigation focuses on whether the money is sitting in private safes or being used to facilitate underground economies where digital footprints are avoided. Because cash is anonymous, the RBA said it cannot easily determine if the missing funds are simply being saved by citizens or are tied to criminal enterprises ^[1].

The RBA continues to monitor the flow of currency to understand these patterns. The bank's data indicates that while digital payments have surged, the physical currency that does exist is not always returning to the financial system as expected ^[1].