Japan's inflation is back above the 2% target, a rate hike may come soon

According to Japan's Statistics Bureau, consumer prices in September were 2.1% higher than a year earlier. In August the rise was 1.9%.

The central bank watches prices excluding fresh food, known as core inflation. It rose from 1.7% to 2.1%. The last time it was above 2% was December 2025, then it stayed below the target for eight months. Prices excluding fresh food and energy, the stickiest part, rose 2.4% after 1.9% in August.

What got pricier. Food excluding fresh items rose 2.9% in a year. Hotels 4.6%, water 4.9%, household appliances 6.2%. What got cheaper. Energy as a whole fell 0.6%: electricity down 2.4%, petrol down 2.6%. The bureau says scrapping the provisional petrol tax and other government steps pulled energy down in the index. Rice other than the Koshihikari variety fell 21.1%.

The Bank of Japan raised its rate to 1.25% last month, a 31-year high, Reuters reports. According to the agency, the bank will likely hold at next week's meeting but may raise its inflation forecast. Governor Kazuo Ueda has already said inflation may overshoot the target because of the weak yen and demand from AI.

Why this matters beyond Japan. For years investors borrowed cheap yen and put it into other assets. When Japanese rates rise, some of that money goes home, and markets sometimes jolt. That happened in summer 2024. It does not mean it will happen now, but the yen is worth watching.

Confirmed facts

• Japan's consumer price index rose 2.1% year on year in September 2026, after 1.9% in August.^[1]
• Prices excluding fresh food rose 2.1% after 1.7% in August.^[1][2]
• Prices excluding fresh food and energy rose 2.4% after 1.9% in August.^[1][2]
• Core inflation was last above 2% in December 2025 (2.4%).^[1]
• Food excluding fresh items rose 2.9%, hotels 4.6%, water 4.9%.^[1]
• Energy fell 0.6% in a year, electricity 2.4%, petrol 2.6%.^[1]
• Rice other than Koshihikari fell 21.1% in a year.^[1]
• The Bank of Japan raised its rate to 1.25% last month, a 31-year high.^[2]

Implications

• ConfirmedCore inflation is back above the Bank of Japan's 2% target.
• Our readingThe odds of another rate hike in the coming months have gone up.
• Our readingIf Japanese rates rise, the yen may strengthen and risky assets may see a wave of selling.

Still unknown

• When exactly the Bank of Japan will make its next hike.
• How long the government will keep holding energy prices down.
• How the yen will react after the meeting.

Who it affects

Japan, Asia, Worldwide. Anyone trading the yen, holding Japanese stocks or watching global rates

Sources

1. Statistics Bureau of Japan: 2025年基準 消費者物価指数 全国 2026年9月分 October 23, 2026 · official
2. Reuters via Investing.com: Japan core inflation exceeds BOJ target, cements near-term rate hike chance October 22, 2026 · media