Bank of Japan Raises Rate to 1.25% in September — Wage-Price Dynamic Confirmed Durable, Inflation Risks Upside

According to the Bank of Japan's September 2026 monetary policy meeting decision, the BoJ raised its policy rate from 1.00% to 1.25%, delivering the year-end rate hike that both Vanguard's August economic outlook and the Daiwa Institute of Research's June forecast had identified as the most likely policy trajectory. The September rate hike marks a significant milestone in Japan's monetary policy normalisation — the policy rate is now at its highest level since the late 1990s, and the BoJ's decision reflects a qualitative judgement that Japan's wage-price dynamic has become sufficiently durable to support continued, gradual policy normalisation.

The primary evidence underpinning the September rate decision is the wage settlement sequence. Three consecutive years of above-3% nominal wage increases in Japan's spring labour-management negotiations — the 2024, 2025, and 2026 rounds — have created a pattern that the BoJ judges represents a genuine structural change in Japan's wage-setting behaviour rather than a post-pandemic recovery blip. The BoJ's July guidance — which had adopted a more hawkish tone and assessed inflation risks as skewed to the upside — was confirmed by the August and September inflation data that showed core CPI maintaining its trajectory above the 2% target.

Japan's AI export tailwind has been a positive surprise factor in the BoJ's September assessment. Semiconductor equipment orders for Japanese manufacturers — particularly Tokyo Electron and Shin-Etsu Chemical — have remained exceptionally strong through Q3 2026 as the global AI infrastructure investment cycle continues at an accelerating pace. This AI export demand has provided a meaningful offset to the continued terms-of-trade headwind from elevated crude oil import costs, supporting corporate profitability and wage growth expectations even as energy import costs remain elevated.

The yen's trajectory was an important factor in the September rate decision. The exchange rate had approached the 155 per dollar level through August — a threshold that BoJ Governor Kazuo Ueda had flagged in July as a level that would amplify the inflationary impact of oil imports through the yen denomination effect. The September rate hike provided some support for the yen, reducing the feedback loop between yen weakness and import inflation that had been building through the summer.

For international businesses with Japanese operations, customers, or yen-denominated financial exposures, the BoJ's September rate hike to 1.25% resets the context for Japanese monetary policy and yen management. Yen-denominated borrowing costs will increase modestly, but from still-historically-low levels. The signal that the BoJ sees the wage-price normalisation as durable is positive for Japanese household income and consumer spending over the medium term.