Japan raises interest rate to 31-year high as inflationary pressure builds 

For much of the past three decades, Japan was the great exception in global monetary policy. While other major economies wrestled with inflation, the Bank of Japan spent years trying to create enough inflation to escape deflation and revive an economy accustomed to exceptionally cheap money. 

That era is moving further into the rear-view mirror. 

The Bank of Japan (BOJ) on Friday raised its benchmark interest rate by 25 basis points, from 1% to 1.25%, taking borrowing costs to their highest level since 1995. The increase, which was widely expected by financial markets, was approved by a 7-2 vote.  

Also read: Japan Rate Hike Could Trigger Shockwave in Indian Markets 

The decision represents another step in the BOJ’s gradual normalisation of monetary policy after years of near-zero and, at times, negative interest rates. The central bank has increasingly shifted its attention from the risk of deflation to the possibility that inflation could become entrenched. 

Japan’s inflation rate is currently close to the BOJ’s 2% target, but policymakers are looking beyond today’s numbers. Higher energy costs, fluctuations in the yen, and rising prices for goods linked to the global artificial intelligence investment boom are creating additional inflation risks. A BOJ official recently warned that consumer inflation could move above 2% in the second half of fiscal 2026. (ABC News) 

From cheap money to policy normalisation 

The significance of the move extends beyond the quarter-point increase itself. 

For years, Japan’s ultra-low rates made the yen an important funding currency for global investors. Cheap borrowing in yen could be used to finance investments in higher-yielding assets elsewhere, contributing to what became known as the yen carry trade. 

Higher Japanese rates gradually change that equation. As the return available on yen-denominated assets rises, investors have greater reason to reconsider overseas positions financed through cheap Japanese borrowing. 

The BOJ’s move also comes against a changing global monetary backdrop. The US Federal Reserve raised its own benchmark rate this week, its first increase since 2023, while other major central banks are also grappling with renewed inflationary pressures. (euronews) 

Yet the yen has not responded in the straightforward manner that a rate increase might suggest. The currency remained weak after the BOJ announcement, trading around 157 yen to the dollar in early market reactions. Japan and the US have recently intervened together to support the yen, which had earlier weakened beyond 160 to the dollar. (AP News) 

The next question is how far rates go 

The BOJ is now facing a delicate balancing act. 

Higher rates can help contain inflation and support the currency, but they also increase borrowing costs for households and companies. Japan’s economy has spent years adapting to exceptionally low interest rates, meaning a faster pace of tightening could have broader consequences for investment, consumption, and financial markets. 

The latest decision also revealed some disagreement within the central bank. Board members Toichiro Asada and Ayano Sato voted against the increase, highlighting the debate over how quickly policy should be tightened. (Reuters) 

For now, the BOJ’s message is one of gradual normalisation rather than an abrupt departure from its cautious approach. But the direction is unmistakable. Japan, once the world’s most prominent laboratory for ultra-cheap money, is increasingly becoming part of the global fight against inflation. 

The key question for markets is no longer whether Japan will leave its era of ultra-loose monetary policy. It is how far, and how quickly, the BOJ will go from here.