Government Debt to GDP Ranking: 35 Major Economies

What this ranking tells us

What the Government Debt to GDP Ranking Tells Us

The Government Debt to GDP ratio measures a country's total public debt as a percentage of its gross domestic product. It is a key indicator of fiscal sustainability and economic health. A high ratio suggests that a government may struggle to service its debt without incurring further borrowing or raising taxes, potentially leading to higher interest rates and reduced investor confidence. Conversely, a low ratio implies greater fiscal flexibility and lower default risk. The indicator is widely used by policymakers, investors, and international organisations to assess sovereign creditworthiness and long-term economic stability.

Distribution and Spread

The ranking reveals a highly skewed distribution. Japan leads with 236.11% of GDP, more than double the second-placed Italy at 135.33%. The United States, France, Canada, and the United Kingdom form a cluster between 122.32% and 101.23%. The median of the 19 these major economies is approximately 81.64% (India), with the average (mean) around 78.5%. The gap between the leader (Japan) and the median is 154.47 percentage points, while the gap to the lowest (Russia at 20.25%) is 215.86 percentage points. The top three countries (Japan, Italy, United States) account for nearly half of the total debt-to-GDP sum of the 35 major economies, highlighting a concentration of high-debt economies among advanced nations.

Structural Reasons for Country Positions

Japan (236.11%): Japan's extreme debt is rooted in decades of deflation, low growth, and repeated fiscal stimulus packages. The Bank of Japan has purchased vast amounts of government bonds, keeping yields low and allowing debt accumulation without a crisis. Additionally, an ageing population increases social security spending while shrinking the tax base. Despite the high ratio, Japan benefits from high domestic savings and a captive investor base, which reduces immediate refinancing risk.

Italy (135.33%): Italy's debt is a legacy of chronic fiscal deficits, low productivity growth, and political instability. The country has not run a primary surplus since the early 1990s, and its debt-to-GDP ratio has risen steadily, interrupted only by brief periods of consolidation. The eurozone membership limits monetary policy options, and the banking sector holds a large share of sovereign debt, creating a dangerous feedback loop between sovereign and bank risk.

United States (122.32%): The US debt has surged due to tax cuts, increased military spending, and emergency responses to the 2008 financial crisis and the Covid-19 pandemic. The dollar's status as the world's reserve currency allows the US to borrow at low interest rates, but the ratio has risen from approximately 60% in 2000 to over 120% today. Political gridlock over fiscal consolidation persists, and the ageing population will pressure entitlement programmes further.

Convergence vs. Divergence Trends

Over the past two decades, debt-to-GDP ratios have generally risen across the 35 major economies, but the pace has been uneven. Advanced economies (Japan, Italy, US, France, UK, Canada) have seen their ratios increase by 50 to 100 percentage points since 2000, while emerging economies (China, India, Indonesia) have experienced more moderate increases or even declines (e.g., Russia fell from 50% in 2000 to 20.25% in 2024). This suggests divergence: the gap between the highest and lowest ratios has widened. However, some convergence is visible within the middle tier: the ratios of France (113.15%), Canada (111.30%), and the UK (101.23%) have converged around the 100-115% range in recent years. The Covid-19 pandemic caused a synchronised spike in 2020-2021, followed by partial consolidation in some countries. Overall, the trend points to higher debt levels in the largest economies, with limited convergence at the top end.

Caveats: What the Ranking Does Not Tell You

The Government Debt to GDP ratio has several limitations. First, it uses nominal GDP; countries with high inflation, like Argentina (84.65%), may see their ratio decline mechanically as nominal GDP rises, even if the debt stock is unchanged. Second, the ratio does not account for currency composition: Japan and the US borrow mostly in their own currencies, reducing rollover risk, while countries like Argentina and Türkiye (24.04%) often borrow in foreign currency, making them vulnerable to exchange rate shocks. Third, the indicator ignores off-balance-sheet liabilities, such as pension obligations and state-guaranteed debt, which can be substantial (e.g., Japan's social security liabilities are not fully captured). Fourth, statistical revisions can alter historical comparisons: for example, China's official debt figures (88.32%) may understate local government borrowing, while Italy's ratio has been revised upward due to Eurostat methodology changes. Finally, the ratio does not measure the maturity structure of debt: a country with short-term debt (e.g., Italy) faces higher refinancing risk than one with long-term debt (e.g., Japan). Thus, while the ranking provides a useful snapshot of fiscal positions, it must be interpreted alongside other metrics such as debt service costs, primary balances, and institutional credibility.