The monetary base in Japan was down 4.8 percent on year in April, the Bank of Japan said on Friday - coming in at 656.977 trillion yen.
Banknotes in circulation were down 2.0 percent on year, while coins in circulation slipped 1.4 percent.
Current account balances stumbled an annual 5.4 percent, including a 2.6 percent drop in reserve balances.
The adjusted monetary base slumped 14.2 percent on year at 639.753 trillion yen.