Japan’s 10-year government bond yield climbed to 3% on September 1, a threshold the country hasn’t touched since 1996.
The milestone caps a dramatic repricing that has added more than 1.4 percentage points to the benchmark yield since August 2025. In a country where negative interest rates were the norm just two and a half years ago, that kind of move isn’t just notable. It’s seismic.
What’s driving the sell-off
Three forces are converging on Japan’s bond market simultaneously.
First, inflation expectations have been climbing alongside oil prices, which have pushed above $85 per barrel amid ongoing geopolitical tensions. Japan imports nearly all of its energy, making it especially vulnerable to commodity-driven price pressures.
Second, the Bank of Japan has been actively normalizing monetary policy. The BOJ hiked its policy rate to 1% in June 2026, the highest level since 1995. It has also been reducing its purchases of Japanese government bonds, removing the backstop that kept yields artificially compressed for more than a decade.
Third, fiscal policy is heading in the opposite direction of restraint. Japan’s ministries submitted record budget requests of approximately 143 trillion yen, roughly $890 billion, for the upcoming fiscal year under Prime Minister Sanae Takaichi.
The broader yield curve is moving too
The five-year yield hit a record high. The two-year yield reached its loftiest point in 31 years.
When Takaichi took office in October 2025, the 10-year yield sat around 1.6%. In less than a year, it has nearly doubled.
The BOJ ended its negative interest rate policy and yield curve control framework in March 2024, marking the beginning of what officials described as a normalization process. The June 2026 rate hike to 1% was the latest step in that march.
Why this matters beyond Japan
Japan’s public debt exceeds 200% of GDP, the highest ratio among major developed economies. A 3% long-term rate had previously been used as a stress-test assumption in Japanese government budget calculations. The fact that it’s now reality rather than a hypothetical worst case changes the math significantly, as debt-servicing costs will consume a growing share of government revenue.
For global bond markets, Japan’s repricing matters because Japanese investors are among the world’s largest holders of foreign bonds. When domestic yields rise enough, money that had been deployed in US Treasuries, European sovereigns, and corporate credit starts to come home.
The BOJ was the final major central bank to exit negative rates, and its continued tightening closes a chapter that defined fixed income markets for the better part of a decade.