Japan Inflation Rises as Expected in May
Japan’s consumer price inflation increased in line with expectations in May. However, core inflation remained below the Bank of Japan’s annual target as government measures continued to limit the impact of elevated energy prices.
The latest figures were released only days after the Bank of Japan raised interest rates by 25 basis points. The central bank also warned that higher energy costs could increase inflationary pressure in the coming months.
Core CPI Remains Below BOJ Target
Japan’s core consumer price index, which excludes volatile fresh food prices, rose by 1.4% year-on-year in May, according to government data.
The reading matched market expectations and remained unchanged from the previous month.
Core inflation stayed below the Bank of Japan’s 2% annual target for the fourth consecutive month. It was also the weakest core CPI reading recorded in four years.
Underlying Inflation Slows Slightly
A narrower measure of core inflation, which excludes both fresh food and energy prices, increased by 1.8% in May.
This marked a slowdown from the 1.9% rise recorded in April. The Bank of Japan closely monitors this measure to assess underlying inflation trends across the Japanese economy.
Headline CPI increased by 1.5% year-on-year in May, compared with a 1.4% rise during the previous month.
Energy Subsidies Limit Consumer Prices
Japanese inflation has remained relatively subdued during 2026, largely because of government subsidies on fuel and utility costs.
These measures were introduced to reduce the financial impact of higher energy prices linked to the conflict in the Middle East.
However, producer price inflation has risen sharply since March. This has increased concerns that businesses may eventually pass their higher operating and input costs on to consumers.
Analysts Expect Inflation to Accelerate
Capital Economics analysts said government fuel price caps had so far prevented a stronger increase in consumer prices.
Nevertheless, they expect higher energy costs to gradually feed through to utility bills and the prices of other goods and services. As a result, inflation could rise to around 3.5% by early 2027.
Bank of Japan Signals Further Rate Hikes
The Bank of Japan highlighted similar inflation risks when it raised interest rates earlier this week.
The rate increase lifted Japan’s benchmark interest rate to 1%, its highest level since 1995.
The central bank also indicated that it was prepared to tighten monetary policy further if inflation accelerates as expected over the coming months.






