Japan’s monetary base contracted by 15.7% year-on-year in August 2026, marking the sharpest decline since March 2007 and exceeding market estimates for a 13.5% decline. The latest reading also accelerated from a 13.8% decline in July, driven by a 18.9% drop in current account balances held at the Bank of Japan, following a 16.6% fall in July, while banknotes in circulation fell 2.0% (1.9%) and coins in circulation eased 1.2% (1.1%). On an average outstanding basis, the monetary base stood at ¥543.0 trillion in August, down from ¥554.9 trillion in July. source: Bank of Japan
Monetary Base YoY in Japan decreased to -15.70 percent in August from -13.80 percent in July of 2026. Monetary Base YoY in Japan averaged 9.65 percent from 1971 until 2026, reaching an all time high of 55.70 percent in February of 2014 and a record low of -22.30 percent in November of 2006. Japan Monetary Base YoY - data, historical chart, forecasts and calendar of releases - was last updated on September of 2026.