Japan’s core inflation accelerates in July, bolstering argument for rate hike

By the Editorial Team · Saturday, August 22, 2026

Japan’s core consumer inflation rose 1.8% year-on-year in July, driven by higher import costs from a weaker yen and Middle East tensions. This trend increases the likelihood that the Bank of Japan will raise interest rates at its September policy meeting to address mounting inflation pressures.

Japan’s core consumer inflation accelerated in July, driven by rising import costs linked to a weaker yen and geopolitical tensions in the Middle East, official data showed on August 21. The price increases strengthen the case for the Bank of Japan (BOJ) to raise interest rates at its upcoming policy meeting scheduled for September 17-18.

The core consumer price index (CPI), which includes energy-related items but excludes volatile fresh food prices, increased by 1.8% year-on-year in July. This followed a 1.6% rise in June and aligned with median market forecasts. Despite this acceleration, the figure remained below the BOJ’s long-standing inflation target of 2% for the seventh consecutive month. The continued shortfall has been attributed in part to government subsidies aimed at limiting fuel costs.

Economists project that core inflation will soon surpass the BOJ’s target as firms increasingly pass on higher raw material expenses, reflecting a broader rise in wholesale inflation. Masato Koike, senior economist at Sompo Institute Plus, noted that renewed tensions in the Middle East, especially linked to crude oil price pressures following the US-Israeli conflict, alongside the depreciated yen, are likely to fuel further inflationary pressures. Koike expects these developments will prompt the BOJ to raise rates in September.

An alternative core inflation measure, which excludes both fresh food and energy prices and is closely monitored by the BOJ for underlying price trends, rose 1.9% in July from a year earlier, up from 1.7% in June. Service-sector inflation also showed signs of picking up, increasing to 1.2% in July from 1.1% the previous month. This rise is viewed as evidence that companies are beginning to pass on higher labor costs amid a tight labor market.

After raising interest rates to 1% in June, the highest level in 31 years, the BOJ maintained its current monetary policy stance in July but issued its most explicit alert yet regarding mounting inflation risks. Sources close to the BOJ indicated the central bank plans to increase rates as soon as the September meeting, with the possibility of more aggressive hikes to follow, potentially exceeding the current pace of two increases per year.

The BOJ’s forthcoming decisions will be closely watched as policymakers balance the challenge of containing inflation pressures while supporting economic growth amid a complex global environment marked by geopolitical uncertainty and currency fluctuations.

This article was reported by synthesizing coverage from multiple independent news outlets to present a balanced, unbiased account. Read about our editorial standards. Spotted an error? Let us know.