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Market News/Article

News & analysis

Data service · Checking

Japan Core Inflation Slows to 1.7% in August, Missing Forecast

Nationwide core CPI came in below expectations, easing pressure on the Bank of Japan as it weighs its next policy step.

By PREVICT Research·Fri 18 Sep 2026 · 06:41 UTC·Updated Fri 18 Sep · 07:03 UTC
Illustrative photograph: Detailed view of Hungarian Forint banknotes showcasing the unique design and art of currency.

Key points

  • Nationwide core CPI rose 1.7% year-on-year, below the 1.8% forecast and the previous 1.8% reading.
  • The miss marks a deceleration in core inflation from the prior month's pace.
  • The data may ease pressure on the Bank of Japan as it assesses the timing of further policy tightening.

Japan's nationwide core consumer price index rose 1.7% year-on-year in August, undershooting a 1.8% forecast and slowing from the prior 1.8% reading, according to a reported release.

Japan's nationwide core consumer price index rose 1.7% year-on-year, below the 1.8% forecast and down from the previous 1.8% reading, according to a reported release. The reading was published on 17 September 2026.

The slowdown in core inflation suggests underlying price pressures eased in August. The core measure excludes volatile fresh food prices and is closely watched as a gauge of domestic inflation trends.

The weaker-than-expected print may soften the case for near-term policy tightening by the Bank of Japan, which has been gradually moving away from its long-standing ultra-loose monetary stance. A softer inflation reading gives policymakers more room to wait before adjusting rates.

Related markets

EWJSPYUSDUST10Y

Sources

  1. 1Japanese Core CPI Nationwide YoY Actual 1.7% (Forecast 1.8%, Previous 1.8%)FinancialJuice · Thu 17 Sep · 23:30 UTC

PREVICT links to original reports and writes its own synthesis; publisher article bodies are not republished.

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Data service · Online

Live market-state service confirmed Fri 18 Sept, 05:15 GMT-4. Latest evidence as of Fri 18 Sept, 05:00 GMT-4. Market State refreshes hourly. Current New York time 05:15.

NY 05:15