Japan’s spending plans to boost yen, says Growth Strategy Minister

Japan’s Growth Strategy Minister Minoru Kiuchi went on Bloomberg Television on August 10, 2026, with a message aimed squarely at nervous currency traders: the government’s spending plans are not as reckless as they look, and the yen will be stronger for them.

Markets, for the moment, are unconvinced. The yen has fallen to around 163 per US dollar, levels not visited in nearly four decades, and a massive fiscal blueprint from Prime Minister Sanae Takaichi’s administration has done little to calm those nerves.

A spending agenda measured in trillions

The scale of Japan’s economic ambitions is genuinely difficult to contextualize. Takaichi’s government has outlined ¥370 trillion, roughly $2.3 trillion, in public-private investments targeted for completion by 2040, spread across 17 priority sectors. The investment push targets areas including defense, artificial intelligence, and semiconductors.

The fiscal year 2026 budget alone is projected to exceed 122 trillion yen, or approximately $783 billion, making it one of the largest budgets in Japanese history. Japan’s entire economy produces roughly $4 trillion in output annually.

Kiuchi’s pitch is that the fiscal policy is not as expansionary as outside observers perceive, because Tokyo is deliberately measuring debt sustainability against GDP rather than treating headline spending figures as the primary metric.

The debt elephant in the room

Japan’s public debt stands at approximately 209% of GDP as of mid-2025, a ratio that places it firmly at the top of the debt-to-GDP rankings among major developed economies.

Kiuchi addressed this directly, publicly dismissing any suggestion that the government intends to suppress interest rates artificially or abandon fiscal consolidation goals. The remarks were calibrated to separate Takaichi’s growth agenda from monetization concerns that have historically spooked bond markets in other heavily indebted nations.

What Kiuchi’s framing is actually trying to do

Measuring debt against GDP, rather than in absolute yen terms, is the standard approach used by the IMF and most international financial institutions. Kiuchi’s emphasis on adopting that methodology signals that Japan wants its fiscal story judged by the same framework applied to peers like the United States or Germany.

If the ¥370 trillion investment program delivers meaningful productivity gains in AI, semiconductors, and defense manufacturing, the denominator in that debt ratio grows, making the debt itself more manageable over time. That is the optimistic scenario baked into Kiuchi’s public positioning.

The combination of a yen near 163 per dollar, a debt load at 209% of GDP, and a government unveiling one of the most ambitious investment programs in modern Japanese history means the margin for mixed signals is smaller than usual.

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