Core inflation in Tokyo remained steady at 2.5% in September, highlighting persistent price pressures in Japan’s capital and fueling speculation over the Bank of Japan’s (BOJ) next policy move. The figure, which excludes volatile fresh food but includes fuel, matched August’s pace but came in below the market forecast of 2.8%. Despite the moderation, inflation continues to sit well above the BOJ’s 2% target.
The Tokyo core consumer price index (CPI) is closely watched as a leading indicator of nationwide inflation trends. Another index that strips out both fresh food and fuel, considered a more accurate gauge of underlying inflation, rose 2.5% year-on-year, slowing from 3.0% in August. Food inflation, excluding fresh items, also remained high at 6.9%, though slightly softer than August’s 7.4%.
The data arrives just weeks ahead of the BOJ’s policy meeting on October 29–30, when the board will release updated quarterly growth and inflation forecasts. These projections are expected to be pivotal in determining the central bank’s stance on future rate hikes.
Earlier this year, the BOJ ended its decade-long stimulus program and lifted short-term rates to 0.5% in January, its first rate increase in years. While core inflation has surpassed the 2% benchmark for more than three years, Governor Kazuo Ueda has repeatedly stressed the importance of ensuring that price growth is supported by rising wages and solid domestic demand before tightening further.
The BOJ left rates unchanged last week, but two board members dissented, calling for an immediate hike to 0.75%. Market expectations remain divided, with a Reuters poll showing most economists anticipate a 25-basis-point increase by year-end, though opinions differ on whether it will come in October or January.
With inflation proving sticky and price pressures broadening, investors and policymakers alike will be watching Tokyo’s trend closely as Japan edges toward a potential rate adjustment.


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