Redefining the words

The direct borrowing of Korea’s central and local governments — government bonds and loans. The government reports it in the annual settlement of accounts: KRW 1,304.5 trillion, or 49.0% of GDP, for fiscal 2025.

Why it matters: Korean headlines about “national debt” and this site’s Korea clock both use D1. When you line Korea up against IMF or OECD tables, switch to the broader D2 so both sides are measured the same way.

Where it is used: Confuse D1, D2 and D3, and you will misread Korea's national debt

D1 plus the debt of non-profit public institutions, compiled on an accrual basis with transactions inside the public sector netted out. It follows the IMF Government Finance Statistics framework, which is why it is used for cross-country comparison.

Why it matters: For the same country and year, D2 is larger than D1. Most other countries’ “government debt” already means this general-government scope, so placing Korea’s D1 beside them makes Korea look lighter than it is.

Where it is used: Confuse D1, D2 and D3, and you will misread Korea's national debt

D2 plus the debt of non-financial public corporations such as Korea Electric Power (KEPCO) and the Korea Land & Housing Corporation (LH) — the widest scope. The government compiles and publishes it separately once a year.

Why it matters: Public corporations are where frozen utility tariffs and policy projects pile up their costs, so fiscal burdens invisible in D1 can sit here. It is the figure to check when judging long-run sustainability.

Where it is used: Confuse D1, D2 and D3, and you will misread Korea's national debt

What Japan’s Ministry of Finance reports as “the debt of the State” is central government debt: Japanese government bonds, financing bills and borrowings. The general government debt used in international tables adds local governments and social security funds.

Why it matters: Japan’s debt-to-GDP ratio moves a lot depending on the scope chosen. The Japan clock on this site follows central government debt, so it is normal for it to differ from the general-government ratio in IMF tables.

Where it is used: Japan's central government debt and general government debt are not the same number

The gross general government debt EU member states report to Eurostat under the Excessive Deficit Procedure, valued at face value and consolidated within government. For Spain, the figure is published by the Banco de España.

Why it matters: This is the number measured against the Maastricht Treaty’s 60%-of-GDP reference value. The Spain clock on this site follows the same definition, so read it as roughly comparable to Korea’s D2.

Where it is used: Spanish EDP debt must be read within the eurozone framework

Local government financing vehicles (LGFVs) are state-owned investment companies Chinese local governments set up to fund infrastructure off budget. Their borrowing is not part of the official government debt published by the Ministry of Finance.

Why it matters: On official government debt alone, China’s ratio looks lower than that of many major economies. The IMF separately estimates an “augmented” debt that includes LGFVs, so any comparison involving China should show both numbers.

Where it is used: Why China's Official Government Debt and Hidden LGFV Debt Should Be Read Separately

The US Treasury publishes total federal debt every business day, down to the cent (“Debt to the Penny”). That total is the sum of debt held by the public — owned by investors in the market — and intragovernmental holdings, owned by government accounts such as the Social Security trust funds.

Why it matters: The US clock on this site shows the combined total. Economists and the Congressional Budget Office mostly quote debt held by the public, so always say which of the two a figure refers to.

Where it is used: Why U.S. Federal Debt-to-GDP Has to Be Read Alongside the Dollar's Reserve Status

Gross debt is everything the government owes; net debt subtracts the financial assets it holds, such as cash, deposits and securities. The IMF and OECD publish both.

Why it matters: Where a government has built up large financial assets, the gap between gross and net debt is wide. Japan is the classic case: its gross debt is among the highest in the world, but the distance to other countries shrinks considerably on a net basis. Every headline on this site is gross debt.

Where it is used: China vs Japan — National Debt

Potential obligations — government guarantees, public pension promises, bank rescues — that become actual debt only when a specific event occurs. The IMF Fiscal Transparency Code asks governments to disclose them separately.

Why it matters: Contingent liabilities stay out of debt statistics in normal times and land on the government’s books all at once in a crisis, as many countries found with bank rescues in 2008. Checking guarantees and pension promises alongside headline debt shows how much could still be added.

Where it is used: The AI Infrastructure Boom and Sovereign Debt: The Massive Fiscal Bill for Power Grids

Outstanding debt divided by nominal GDP for the same period. It shows how large the debt is relative to the income an economy generates in a year.

Why it matters: Absolute debt cannot be compared across countries with different currencies and sizes; the ratio makes comparison possible. But first check that the numerator (which scope of debt) and the denominator (which year’s GDP) are on the same basis. Korea’s D1 stood at 49.0% at the 2025 settlement.

Where it is used: Korea vs USA — Debt to GDP

Nominal GDP measures output at the year’s market prices; real GDP restates it at base-year prices to strip out inflation.

Why it matters: Debt is repaid in nominal money, so the denominator of a debt ratio is nominal GDP. When prices rise, nominal GDP grows and the same debt becomes a smaller share of it — the mechanism by which inflation “erodes” debt.

Where it is used: Does Inflation Really Melt Away National Debt?

Government revenue minus expenditure; a negative number is a deficit. Korea publishes both the consolidated balance and the “managed” fiscal balance, which excludes social security funds such as the National Pension.

Why it matters: Deficits are mostly financed by issuing new bonds, so they are the direct reason debt grows. Because Korea’s pension fund still runs a surplus, the managed balance shows a larger deficit than the consolidated one — worth remembering when reading Korean budget news.

Where it is used: Does the national debt ever have to be paid back?

The fiscal balance excluding interest payments. It shows whether this year’s revenue covers this year’s policy spending, leaving aside the interest on past borrowing.

Why it matters: When the interest rate exceeds the growth rate, a primary surplus is needed just to keep the debt ratio stable. That is why Japan’s government has long made a primary-balance surplus its fiscal target, and why rating agencies watch it.

Where it is used: Sovereign Credit Ratings and Default Thresholds: What Debt Ratio Is the Limit?

The interest a government pays each year on the bonds and loans it has already issued. In the budget it becomes a fixed cost that competes with every other policy line.

Why it matters: With the same stock of debt, a rise in interest rates pushes this cost up. As a growing share of tax revenue goes to interest, the government must cut other spending such as welfare or defence or borrow more — which makes it the most direct gauge of how heavy debt has become.

Where it is used: The weight of interest — what tightens the budget before the debt does

A legal or institutional numerical limit on deficits or debt ratios. The best known is the EU Stability and Growth Pact, with its reference values of a 3%-of-GDP deficit and 60%-of-GDP government debt.

Why it matters: Where a fiscal rule applies, the debt figure becomes a policy constraint. That is why, in news about euro-area countries like Spain, the key question is often whether a threshold has been crossed.

Where it is used: Spanish EDP debt must be read within the eurozone framework

The short-term benchmark rate a central bank sets through monetary policy — decided in Korea by the Bank of Korea’s Monetary Policy Board, in the US by the Federal Reserve and in the euro area by the European Central Bank.

Why it matters: The policy rate is the starting point for government bond yields and household loan rates. When it rises, interest on newly issued bonds and variable-rate loans goes up first; as existing debt is rolled over, the higher cost spreads to the whole stock.

Where it is used: Does Inflation Really Melt Away National Debt?

Issuing new bonds to repay bonds that are maturing. Rather than paying debt off in one go, governments mostly keep it going this way.

Why it matters: Rolling over is normal practice, but doing it after rates have risen makes the same principal more expensive. Who buys the new bonds also matters: countries whose debt is held mostly by domestic investors are generally judged to face less rollover risk.

Where it is used: Who buys government debt — the same debt carries different risk depending on who holds it

The breakdown of outstanding bonds by remaining time to maturity. The longer the average maturity, the smaller the share that has to be repaid each year.

Why it matters: With a lot of short-dated debt, rate changes feed through to interest costs quickly and more has to be rolled over. Two countries with the same debt ratio can feel a rate rise at very different speeds because of their maturity profiles.

Where it is used: Japan's central government debt and general government debt are not the same number

A grade that agencies such as S&P, Moody’s and Fitch assign to a government’s ability to repay its debt. BBB− (S&P, Fitch) or Baa3 (Moody’s) and above counts as investment grade.

Why it matters: A downgrade raises bond yields, and some institutional investors are barred by their mandates from holding the bonds at all. Rating changes often move borrowing costs faster than the debt ratio itself.

Where it is used: Sovereign Credit Ratings and Default Thresholds: What Debt Ratio Is the Limit?

A designated financial institution that bids directly at government bond auctions and is obliged to quote buy and sell prices in the secondary market. In Korea the finance ministry designates them; in the US, the New York Fed.

Why it matters: Governments can borrow when they need to, at low cost, only if dealers keep absorbing auction supply. Weakening dealer demand at auctions is an early sign that the market is growing uneasy with a country’s debt.

Where it is used: Sovereign Credit Ratings and Default Thresholds: What Debt Ratio Is the Limit?

The Bank of Korea’s quarterly household debt statistic: household loans, including mortgages, plus sales credit such as credit cards and instalment purchases. The preliminary figure for Q4 2025 was KRW 1,978.8 trillion.

Why it matters: In Korea, household debt is larger than national debt (D1). Looking only at government borrowing understates the economy’s total debt burden, which is why this site shows the two side by side.

Where it is used: Household vs National Debt — Which is riskier?

The share of income that goes to repaying principal and interest on loans. The BIS computes it for whole household and corporate sectors, and Korea’s financial regulators use a borrower-level version to cap how much an individual can borrow.

Why it matters: With the same debt balance, higher rates or shorter maturities push the DSR up and make the burden households actually feel heavier. To judge whether debt can be repaid, rather than how large it is, this is the ratio to look at.

Where it is used: Why Household Debt Is a More Immediate Risk for Korea Than National Debt

How far the ratio of private credit (households plus firms) to GDP has strayed from its long-run trend. The Bank for International Settlements calculates and publishes it country by country.

Why it matters: Periods when credit grows faster than its trend have often preceded financial crises, which is why Basel III uses this gap as the starting point for setting banks’ countercyclical capital buffer. It captures the speed of borrowing rather than its level.

Where it is used: Reading Korea in the OECD Household-Debt Comparison: What's Easy to Miss

The process by which households, firms or governments lower their debt ratio by repaying debt or borrowing less.

Why it matters: A debt ratio falls either when debt shrinks or when income (GDP) grows. As Spanish households showed in the long stretch of falling debt ratios after the 2008 crisis, deleveraging weighs on spending, so its pace and method matter a great deal for the economy.

Where it is used: Korea vs Spain — Household Debt / GDP

The balance of a country’s external transactions: trade in goods and services plus income earned abroad and paid out. A surplus means a net inflow of foreign currency.

Why it matters: A country with persistent current account surpluses is, as a whole, lending to the rest of the world, so even a large government debt depends less on outside money. Long-running deficits do the opposite: they make debt reliant on foreign investors and the economy more vulnerable in a crisis.

Where it is used: Why Household Debt Is a More Immediate Risk for Korea Than National Debt

The foreign-currency assets held by the central bank and government — foreign deposits, foreign government bonds, gold and similar. In Korea, the Bank of Korea publishes them monthly.

Why it matters: In the 1997 crisis, Korea ran short of the foreign currency needed to repay short-term external debt and requested an IMF rescue. Reserves are best read alongside external debt — above all short-term debt due within a year — to judge how well a country can withstand a shock.

Where it is used: Thirty years of Korea's national debt — a staircase built by crises

The total owed by a country’s residents — government, banks and companies — to non-residents. It is split into short-term debt maturing within a year and long-term debt.

Why it matters: National debt and external debt are different things. Government bonds held by domestic investors are not external debt, while money a private company borrows abroad is external debt even though the government does not owe it. Currency-crisis risk comes from the external side, above all from short-term debt.

Where it is used: Thirty years of Korea's national debt — a staircase built by crises

Filling the gap between official releases by compounding the last official value at an annual growth rate. The clocks on this site run on value(t) = base × (1+g)^((t−t₀)/1 year).

Why it matters: A number that looks live is an estimate, not a measurement. When you need the exact official figure, check the reference date (asOf) and source on screen and cite the primary data; when a new official value is published, the base is replaced.

Where it is used: The numbers on a debt clock are interpolated estimates, not real-time measurements

In the interpolation formula, the speed at which the base value grows over a year, taken from official projections or recent outcomes. Korea’s national debt, for example, uses about 8.5%: the 2026 projection of KRW 1,415.2 trillion divided by the 2025 settlement of KRW 1,304.5 trillion.

Why it matters: A small change in g makes the on-screen number drift further the longer it has been since the reference date. That is why estimation error can grow for indicators with an old reference date, and why the base value and g are reset together whenever a new official figure arrives.

Where it is used: The numbers on a debt clock are interpolated estimates, not real-time measurements

Total debt divided by population. Dividing Korea’s national debt at the 2025 settlement (KRW 1,304.5 trillion) by the 2026 population in Statistics Korea’s projection, about 51.61 million, gives roughly KRW 25.28 million per person.

Why it matters: A per-person figure makes the scale tangible, but it does not mean each citizen must personally pay that sum. National debt is managed through taxes, growth and rollover, unlike household debt, where the bill arrives in an individual’s name.

Where it is used: How to read "national debt per person" the right way