Japan’s Corporate Services Price Index (CSPI) rose 3.1% year-over-year in the latest reading, up from 2.7% previously, according to data updated on 23 April 2026. The index measures price changes for services provided between businesses, and this latest figure signals a further acceleration in corporate service-sector inflation.
The current 3.1% year-over-year increase compares the latest month’s prices with the same month a year earlier. The prior 2.7% reading reflected the change in the previous month relative to its year-ago level. The step-up in the CSPI underscores ongoing cost pressures within Japan’s corporate sector, which can influence profit margins, contract pricing, and ultimately the broader inflation outlook.