Japan's central bank, the Bank of Japan, raised its key interest rate to 1.0% in June 2026—the highest it has been in about 15 years, according to the BoJ's official June 16 statement.

This move was widely expected. Markets had given it about an 80% chance of happening, according to Reuters. At an earlier meeting in April, three of the nine board members had already pushed for a rate increase, which signaled where the bank was heading. The bank plans to raise rates further, likely to 1.25% by the end of 2026.

Why is the central bank raising rates? The main reason is inflation. Wages in Japan have been rising consistently, which means workers and companies are willing to spend more. The bank wants to cool down that spending slightly, which helps control inflation. Higher rates make it more expensive to borrow money, so people and businesses tend to spend and invest less.

Why This Matters

For most of the past 30 years, Japan's interest rates were stuck near zero. This affected global markets in important ways. When rates are very low in Japan, investors borrow cheap yen to invest elsewhere in the world—a strategy called a "carry trade." Now that rates are rising in Japan, that trade becomes less attractive. Money is starting to flow back to Japan, which makes the yen stronger.

This shift changes things for investors around the world. Japanese banks, insurance companies, and pension funds that had been putting money into foreign bonds because there was no return at home are now reconsidering. They might bring some of that money back to Japan. The yen's value over the next six months will depend partly on what the U.S. Federal Reserve does—if the Fed keeps rates high while Japan keeps raising its own, the gap between the two narrows, and the yen becomes more attractive.

The bottom line: after 30 years of very low rates, Japan is slowly raising them. This is not an emergency. It is a long, steady shift—but it has real effects on currency markets and on where money flows around the world.