Japan experienced a significant rise in core inflation in September 2026, reaching 2.1%, the highest level this year and surpassing analysts' expectations. This inflation gauge excludes fresh food prices and reflects a notable increase driven by higher costs for durable goods and public utilities. The Bank of Japan's preferred measure, “core-core” inflation, which strips out both fresh food and energy prices, rose even higher to 2.4%. Despite a notable decline in rice prices and fresh food inflation slowing sharply, overall goods inflation climbed to 2.8%, indicating persistent price pressures, partly fueled by the indirect effects of energy costs.

The inflation surge in Japan is linked to rising import costs due to a weakened yen and more expensive energy imports, as the country shifts away from Middle Eastern oil amid geopolitical tensions involving Iran. Although consumer energy prices decreased slightly in September, subsidies introduced by the government helped mitigate the energy price impact. Finance Minister Satsuki Katayama indicated that Japan is approaching a period of sustained inflation driven by rising wages, alongside inflation fueled by higher import prices. This shift marks a significant development after years of battling deflationary pressures.

Amid the inflationary pressures, the Bank of Japan raised interest rates to a three-decade high of 1.25% in September and is expected to consider another rate hike in December to further tighten monetary policy. This shift reflects the central bank’s efforts to normalize its monetary stance after decades of reflationary policies. The recent inflation data strengthens the case for continued tightening as underlying inflation remains above the 2% target, suggesting a cautious approach to balancing price stability and economic growth.

In response to soaring consumer prices, Japan’s Lower House began debating legislation to cut the consumption tax on food from 8% to 1% for two years, aimed at alleviating the burden on households. The bill also proposes income-based support payments for workers. While concerns exist about potential conflicts between fiscal easing and the central bank’s monetary tightening, Finance Minister Katayama emphasized alignment between the government and the Bank of Japan’s policy views, reinforcing a coordinated approach to managing inflation and economic challenges.