Japan's Giant Spending Spree Risks Liz Truss-Style Shock 2026

Japan's giant spending spree under Prime Minister Sanae Takaichi is raising fears of a Liz Truss-style economic shock. International investors are questioning where the ¥370tn (£1.7tn) of extra cash will come from as the government plans to invest in 17 industrial sectors by 2040.

The Scale of Japan's Unfunded Shopping Spree

The coalition government intends to rewrite previous budget rules to fuel a wide-ranging expansion. Many within Takaichi’s own party worry she is about to blow up the Japanese economy, triggering a crisis similar to the one that followed Liz Truss’s 2022 mini-budget in the UK. Financial markets are jangling as investors react with a succession of downward steps in the stock market.

This ambitious plan comes after decades of economic stagnation. The roots of Takaichi’s frustration date back to the 1991 property market bubble burst, when Tokyo was the world’s most expensive place to live. Within months, banks behind much of the lending were bust. A second slump before the turn of the century brought more turmoil as major financial institutions collapsed under bad debts.

Japan's Growing Debt Crisis

In the late 1980s, Japan’s government debt was about 60% of GDP. By the end of the 1990s, after bailouts, it hit 130%. Since the 2008 global financial shock, the economy has stagnated, and the government has regularly spent 10% more than it receives in tax receipts—much of it to cope with a rapidly aging population. By 2020, the debt-to-GDP ratio reached 260% before tighter budgets and modest growth brought it below 230% in 2025.

Comparison of Debt-to-GDP Ratios Over Time

The table illustrates Japan’s dramatic debt escalation. Takaichi’s new investment plan risks reversing the recent improvement. She argues it will lift productive capacity, keep Japan at the forefront of the AI revolution, and reduce reliance on trade with China.

Lessons from the Liz Truss Shock

The Liz Truss mini-budget in the UK led to a crash in bond markets, a spike in borrowing costs, and a sharp devaluation of the pound. Investors lost confidence in the government’s fiscal discipline. Japan’s situation is different because the Bank of Japan holds much of the country’s debt, but the scale of unfunded spending could still trigger a crisis if global investors flee.

Key Takeaways for Investors

• Japan’s debt-to-GDP ratio remains above 200%, one of the highest among developed economies.
• The government is committing to ¥370tn in spending without clear funding sources, risking a fiscal panic.
• Market reactions have been negative, with stock declines reflecting investor anxiety.
• Comparisons to the Liz Truss shock highlight the potential for sudden loss of confidence.
• Japan’s aging population and low growth make debt reduction challenging.

FAQ

Investors should watch for further market volatility and policy announcements. Japan’s bold gamble could either reignite growth or lead to a devastating fiscal shock. Stay informed with GrandGoldman.com.