Japan Core Inflation Hits 2.1%, Keeping BOJ Rate Hikes in Focus

Japan’s core consumer inflation rose to 2.1% year-on-year in September, exceeding the Bank of Japan’s 2% target for the first time in nine months and keeping further interest-rate increases in focus. Economic Times Markets, citing government figures released on October 23 and Reuters reporting, said the reading matched the median market forecast and was up from 1.7% in August.

The core consumer price index excludes volatile fresh food prices but includes fuel. A separate measure stripping out both fresh food and fuel accelerated to 2.4%, from 1.9% in August. The BOJ closely tracks that narrower measure for signals of underlying, demand-driven inflation.

Price pressures extend beyond fuel

The report linked rising prices to higher energy costs associated with the prolonged Middle East conflict, more expensive imports resulting from yen weakness, and strong demand for artificial intelligence-related products. These pressures were counteracting government fuel subsidies intended to soften household costs.

The rise in inflation excluding fuel is significant for the policy debate: the acceleration was not confined to the headline effect of energy prices. Governor Kazuo Ueda has warned that pressures from the Middle East conflict, the weak currency and brisk AI-related demand could push underlying inflation above the central bank’s 2% target.

A pause next week remains the expectation

The BOJ raised its key interest rate to 1.25% in September, the highest level in 31 years, according to the report. That decision reflected increased concern about underlying inflation exceeding its target and left open the possibility of further tightening.

Despite the latest inflation figures, the central bank is expected to leave policy unchanged at its meeting next week after last month’s increase. Sources cited by Reuters said it could instead raise its inflation forecasts and signal that additional increases in borrowing costs remain possible. Those prospective steps are expectations, not announced decisions.