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Tokyo, August 25 , 2026 – Japan’s Finance Ministry has warned that debt-servicing costs will soar by 17 percent in fiscal 2027, reaching a record 36.6Yen trillion ($230 billion).
The surge reflects the impact of rising interest rates on the world’s most indebted advanced economy, where public debt already exceeds 250 percent of GDP.
The ministry’s projections show interest payments alone climbing to 16.6 Yen trillion, driven by higher bond yields.
The benchmark 10 year Japanese government bond yield recently touched 2.945 percent, its highest level in nearly three decades.
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This marks a decisive end to the era of ultra-cheap borrowing, as the Bank of Japan’s exit from negative interest rates intensifies fiscal pressures.
Budget requests for the next fiscal year are expected to surpass 130 Yen trillion for the first time, compared with 122 Yen trillion this year.
Prime Minister Sanae Takaichi’s administration has embraced an expansionary fiscal stance, incorporating supplementary spending into the initial budget and pledging uncapped public investment schemes.
While these measures aim to stimulate growth and support wage increases, they also risk deepening Japan’s fiscal vulnerabilities.
Debt servicing is set to consume nearly a third of the national budget, crowding out resources for social security, defense, and long-term growth initiatives.
Analysts warn of a vicious cycle higher interest rates increase debt costs, which in turn weaken fiscal soundness and could push borrowing costs even higher.
The political challenge for Takaichi is formidable.
Her government must balance fiscal discipline with promises of regional revitalization and wage growth.
Yet the sheer scale of debt obligations leaves little room for maneuver.
Japan’s debt to GDP ratio, already the highest among advanced economies, raises concerns about sustainability and investor confidence.
Globally, Japan’s rising yields could ripple across bond markets, influencing risk assets and investor sentiment.
As one of the world’s largest issuers of sovereign debt, shifts in Japanese borrowing costs carry implications far beyond Tokyo.
The outlook is sobering. With debt servicing projected to absorb nearly 30 percent of the budget, Japan faces a turning point.
The era of cheap borrowing is over, and fiscal choices are narrowing.
Without decisive reforms, the country risks eroding confidence in its long-term economic stability.
At stake is not only Japan’s fiscal credibility but also its ability to invest in future growth.
The government’s challenge is to navigate between sustaining economic momentum and restoring fiscal balance a task made harder by the relentless rise in debt costs.
