Japan’s National Core Consumer Price Index (CPI) rose to 1.8% year-over-year in March 2026, up from 1.6% in the previous reading, underscoring a modest acceleration in underlying inflationary pressures. The latest data, updated on 23 April 2026, compares price growth in March 2026 with the same month a year earlier.
The previous figure of 1.6% also reflected a year-over-year change, measuring price movements in the earlier comparison month against its level a year before. The uptick to 1.8% suggests that price gains are continuing to firm rather than fade, an important signal for policymakers monitoring whether inflation is stabilizing closer to target levels.
While the increase is incremental, the move higher in Japan’s core CPI adds to evidence that underlying inflation has not rolled over, which could influence expectations around the future path of monetary policy and wage negotiations in the months ahead.
