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Mizuho Securities

May 15, 2026

FY2026 Supplementary Budget and Defense Spending Discussions

Macro ThematicRates Govt BondsMacro Economic IndicatorsEnergyUtilities

Mizuho analyzes Japan's potential FY2026 supplementary budget for energy subsidies and ongoing discussions to increase defense spending amid Middle East turmoil.

Key Takeaways

  • 1.The Japanese government is considering a supplementary budget for FY2026, with a decision likely by Prime Minister Sanae Takaichi around the G7 Summit in June.
  • 2.Potential energy subsidies for electricity, gas, and gasoline could push the supplementary budget to several trillion yen.
  • 3.Discussions regarding increased defense spending in national security documents are unlikely to include specific GDP ratio targets, potentially limiting immediate market fiscal concerns.

Table of Contents

  • Government considering FY2026 supplementary budget; discussions on increasing defense spending
  • Implications of revisions to three key national security documents and increased defense spending for public finances
  • Important Disclosure Information
  • Analyst Certification
  • Disclaimer

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