The Bank of Japan raised its benchmark interest rate to 1.25 percent on September 18, 2026, pushing borrowing costs to a 31-year high. The central bank acted to counter rising inflation risks and combat a historically weak yen, following pressure from Washington and tightening moves by other global monetary authorities.
The Bank of Japan escalated its monetary policy normalization on Friday, raising its policy rate by 25 basis points to 1.25%. This move marks the highest benchmark interest rate recorded in the country since 1995. The central bank has steadily stepped away from decades of ultra-low borrowing costs that previously cemented the yen as a cheap global funding currency. The move on Friday marked the first hike since June, and takes interest rates closer to levels the BoJ deems neutral to the economy. The BOJ exited a decade-long stimulus in 2024 and raised rates several times including in June. It kept rates steady in July but warned of an inflation overshoot from soaring fuel costs, rising import costs from a weak yen and strong AI demand.
The decision came at the conclusion of a two-day monetary policy board meeting.
Boardroom Dissent and Prime Minister Sanae Takaichi’s Influence
Board members Toichiro Asada and Ayano Sato dissented from the rate hike. The duo are seen as reflationists and were appointed by Prime Minister Sanae Takaichi earlier this year. Asada noted that as the core inflation rate was below 2%, he was of the view that the economic situation may not be strong, and instead advocated for a hold. Core inflation for August stood at 1.7%, down from 1.8% in July. Sato also said current economic and price developments did not appear to have substantially accelerated compared to before.
Despite the internal division, the tightening was widely expected, with almost 90% of economists surveyed by CNBC expecting the 25-basis-point tightening. Those surveyed also correctly predicted the dissenters to the decision.
Washington Pressure and Global Central Bank Coordination
The interest rate hike unfolds against a backdrop of intense international pressure, particularly from the United States. Washington has been vocal about Japan continuing its rate-hiking cycle, pressuring Takaichi’s preference for an easy monetary policy and an expansionary fiscal policy. The country also faced a slow-moving demographic shock
with a shrinking labour pool lifting wages, a structural factor that cannot be dismissed as temporary, BoJ Executive Director Koji Nakamura said on Monday.
Most recently, Treasury Secretary Scott Bessent told BOJ Governor Kazuo Ueda to take decisive market and monetary steps
at the G20 finance ministers and central bank governors meeting.
The Federal Reserve also raised its key interest rate this week, raising its benchmark interest rate Wednesday for the first time since 2023 in an effort to quell stubbornly high inflation. The Federal Reserve’s rate hike on Wednesday, and the prospect of another one later this year, have added pressure on the BoJ to keep pace. Meanwhile, the European Central Bank raised its key rate to 2.5 percent last week, highlighting their focus on inflation risks and leaving the Bank of Japan’s rate trailing other major western economies.
Inflationary Risks and the Neutral Rate Horizon
In its official policy statement, the central bank said the move was because of a risk that inflation will deviate upward to beyond its 2% target. The central bank added that it aims to stabilize underlying inflation at “around 2%” so that price rises do not overshoot its target and adversely affect the Japanese economy afterward. Japan is grappling to contain inflation, which is being driven by factors including rising energy prices, the war in Iran which has sent oil prices soaring, global supply pressures, and domestic inflation exceeding the 2 percent target. Core consumer inflation held steady near the target in August, data showed on Friday, as companies continued to pass on rising costs for a wide range of food and grocery items.
Markets are focusing on any hints BOJ Governor Kazuo Ueda could provide on the timing and pace of further increases. Analysts polled by Reuters expect the BOJ to hike rates to 1.25% this month, 1.5% by end-March next year and then to 1.75% in the second quarter of 2027.
Following the central bank’s announcement, Tokyo’s benchmark Nikkei 225 rose after the Bank of Japan decision was announced. The currency traded at 156.64 after the decision, weakening 0.45%, while the benchmark 10-year Japanese government bond yield fell 4.9 basis points to 2.947%. The nations intervened together recently to prop up the yen. The U.S. dollar is trading at about 155 yen, having reached above 160 yen earlier this year.
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