External Debt — Explained
Detailed Explanation
External debt is defined by residence
External debt consists of outstanding debt liabilities owed by residents of an economy to non-residents. The 2013 External Debt Statistics Guide distinguishes actual liabilities requiring future principal or interest payments from contingent commitments. Residence is the decisive cross-border criterion. The currency of a loan and the citizenship of a lender do not, by themselves, determine whether it is external debt.
A rupee-denominated bond held by a non-resident can therefore be part of India's external debt. A foreign-currency loan between two resident units is not external merely because its denomination is dollars. These examples separate the residence test from currency risk. Both are important, but they answer different questions. Likewise, an undisbursed loan commitment is not automatically an outstanding liability of the same amount.
It is broader than government borrowing
External debt can be owed by government, banks and other resident entities. A country's total external debt is not synonymous with sovereign debt or with the public debt reported in a fiscal statement. Loans, debt securities, deposits and trade credit can contribute to the total, subject to the applicable statistical definitions. Equity investment is not debt merely because the investor is foreign: an ownership claim differs from a debt payment obligation.
The Department of Economic Affairs' September 2026 status report records India's external debt at USD 762.8 billion at end-March 2026, with sovereign external debt of USD 167.5 billion. The reporting date matters: publication in September does not make the stock a September measurement. The figures also show why it would be incorrect to describe the entire external debt total as government borrowing.
A stock and a payment flow are different measures
Debt outstanding is measured at a point in time. Debt service describes payments of principal and interest over a period. A stock of USD 100 does not imply that USD 100 must be paid during the coming year; the payment schedule and interest terms determine that year's obligations. Conversely, an economy with a moderate total stock can face pressure if a large share falls due soon and refinancing becomes difficult.
In a simplified example, a borrower owes 100 units, with 20 units of principal due this year and 5 units of interest payable during the year. The specified debt service is 25 units, not 105. After payment, the closing debt stock also depends on new borrowing, accrued liabilities and other changes. The example is an accounting exercise, not a forecast for India or a complete model of every debt instrument.
Original maturity differs from remaining maturity
Original maturity is the time from the creation of a liability to its contractual final repayment. Remaining maturity measures the time left from the reporting date. A five-year loan with six months left is long-term by original maturity but falls within a short remaining-maturity window. For near-term liquidity analysis, the second perspective reveals payments that an original-maturity classification can conceal.
This is why debt statistics often provide several tables rather than one headline number. A table of short-term debt by original maturity should not be compared uncritically with one of obligations due within a year on a remaining-maturity basis. The categories have different coverage. A change in presentation can alter the apparent risk measure even when the underlying contractual obligations have not changed.
Currency movements can change reported values
Debts denominated in different currencies are converted into a common reporting unit. Exchange-rate changes can therefore alter the reported stock without an equivalent new disbursement. The 2025–26 status report explicitly separates valuation effects from the change in the dollar-denominated total. A movement in the headline stock should not automatically be labelled net new borrowing.
Distinguish this statistical conversion from a borrower's currency mismatch. In an original example, a resident borrower owing USD 100 needs ₹8,000 to buy the principal at ₹80 per dollar and ₹9,000 at ₹90 per dollar. The dollar principal has not increased, but the rupee cost of obtaining it has. Whether this creates a serious exposure depends on the borrower's revenues, assets and hedging arrangements. Currency denomination alone does not reveal the complete balance-sheet risk.
Ratios help, but do not settle sustainability
The September 2026 report gives an end-March 2026 external-debt-to-GDP ratio of 20.8 per cent and a foreign-exchange-reserves-to-external-debt ratio of 90.6 per cent. These are dated indicators with different denominators and purposes. They should not be read as a guarantee that every borrower can repay or that the reserves are a dedicated fund available to discharge each private liability.
A debt-to-GDP ratio can fall because GDP rises faster than debt even while debt increases in absolute terms. Reserve coverage offers information about external buffers but does not replace a maturity schedule, currency composition or analysis of borrowers' payment capacity.
Sustainability and liquidity are related but distinct: a borrower may have valuable long-term assets while facing a short-term payment problem. For UPSC, define the measure, state its date and denominator, and explain the relevant risk rather than treating a single headline ratio as a complete verdict.