Eurodollar Deposit

A eurodollar deposit is a U.S. dollar-denominated deposit held in a bank account outside the United States, often in London or other international financial centres; these deposits form the largest short-term funding market globally and determine interest rates for overseas dollar borrowing.

Why offshore dollar deposits exist

When a multinational corporation or a European bank wants to borrow dollars for three months, it does not need to borrow from a U.S. bank. It can place a eurodollar deposit—a deposit in a dollar-denominated account at, say, a London or Singapore branch of a major international bank. The bank then lends those dollars to other borrowers or uses them to fund its own operations. The depositor earns interest; the bank pays it from the spread it earns on lending.

The eurodollar market emerged in the 1950s and 1960s partly for regulatory reasons. U.S. banks were restricted in how much interest they could pay on deposits and faced capital requirements and reserve rules that made dollar lending expensive. Foreign banks operating in London, Frankfurt, or Singapore faced no such constraints from U.S. authorities (the U.S. could not regulate them directly). As a result, they could pay higher rates on deposits and charge lower rates on loans than U.S. banks could. This arbitrage gap sucked dollar deposits offshore.

Over time, the eurodollar market grew into a vast, interconnected ecosystem of borrowing and lending. By the 2000s, it accounted for trillions of dollars of credit, far exceeding the amount of dollar lending inside the United States. Corporations, financial institutions, and sovereigns all tapped this market. The rates were set by LIBOR—the London Interbank Offered Rate—which reflected the cost of short-term dollar borrowing among banks.

How eurodollar rates drive the global short-term market

A eurodollar deposit is typically a short-term instrument: 30 days, 90 days, six months, or one year. The bank that holds the deposit pays interest at a rate linked to LIBOR plus a credit spread. The larger the bank, the lower the spread (it is safer to lend to JP Morgan than to a regional bank). The more stressed the market, the wider the spread (during crises, depositors flee to the safest banks, and weaker names have to pay much more to attract funds).

LIBOR itself is determined by polling a panel of major banks on what they would charge to borrow dollars. The average (trimmed for extremes) becomes the benchmark. Corporations that borrow dollars offshore reference LIBOR—they pay LIBOR plus 100 basis points (or whatever the market demands). Interest rate swaps that convert foreign currency debt into dollars use LIBOR as the floating leg. Treasury bills, commercial paper, and repurchase agreements all price off or relative to eurodollar rates.

This means that the eurodollar market acts as a global short-term funding nerve centre. When eurodollar rates spike—because depositors lose confidence in banks, or because the Federal Reserve tightens monetary policy—credit spreads widen, corporate borrowing becomes expensive, and growth can slow. Conversely, when eurodollar rates are low and stable, corporate credit flows freely, and asset prices rise.

Who borrows and who deposits

On the funding side, large banks with subsidiaries in London, Singapore, and other centres accept deposits in dollars. These deposits come from corporations with excess cash, central banks managing reserves, hedge funds, and other banks. The depositor might be in any country; the bank paying interest is offshore.

On the borrowing side, corporations use eurodollar credit to finance working capital, acquisitions, and short selling strategies. Banks borrow from each other in the eurodollar market to fund their own operations and to arbitrage differences in rates across currencies. Financial engineers use eurodollar futures contracts and interest rate swaps to hedge currency risk or to speculate on rate changes.

A typical transaction: a U.S. multinational has a subsidiary in Germany that needs cash for payroll and supplier invoices. Rather than wire money from the U.S. and incur currency risk, the subsidiary borrows dollars for three months in the eurodollar market at LIBOR + 1.5 percent. Meanwhile, a European pension fund with excess cash deposits dollars in a London bank for three months at LIBOR - 0.2 percent, earning a small yield without taking currency risk (because the bank holds matching assets and liabilities in dollars).

The shadow of systemic risk

The eurodollar market’s size and interconnectedness make it a potential flashpoint for systemic crises. During the 2008 financial crisis, confidence in the eurodollar market collapsed. Depositors feared that major banks might fail; counterparty risk spiked. The spread between safe and risky banks widened to dangerous levels. Some banks could not raise short-term funding at any price. The Federal Reserve had to intervene, establishing swap lines with foreign central banks to ensure dollar liquidity remained available.

The LIBOR scandal of 2012 revealed that some banks had manipulated the rates they reported to the LIBOR panel, inflating profits on derivatives and loan portfolios. This undermined confidence further. The market has since migrated toward SOFR—a secured overnight financing rate based on actual repurchase agreement transactions rather than polled quotes—though the transition has been gradual and incomplete.

Regulation and offshore flexibility

Because eurodollar deposits are held offshore, they fall into a regulatory grey zone. The U.S. Federal Reserve can influence them indirectly (by raising or lowering interest rates, banks adjust offshore rates), but it does not regulate offshore banks directly. The banks face regulation from their home countries (a London bank must comply with UK rules; a Singapore bank with Singapore rules). This lighter regulatory footprint is part of the market’s appeal—leverage can be higher offshore than onshore, and there is less compliance overhead.

However, this flexibility comes with costs. During stress events, uninsured eurodollar deposits can evaporate overnight. In the 2008 crisis, the near-failure of several large banks meant depositors scrambled to move funds to the safest institutions. The Federal Reserve’s intervention was essential; without it, a true liquidity crisis might have unravelled global credit. The eurozone debt crisis of 2011–2012 also showed that eurodollar deposits migrate in search of safety—banks in periphery countries saw deposit bases shrink as funds fled to German and Dutch banks.

The eurodollar’s future

The shift from LIBOR to SOFR and other risk-free rates is reshaping the eurodollar market. SOFR is based on repurchase agreement data, not bank quotes, making it harder to manipulate and less sensitive to survey bias. However, SOFR is an overnight rate; the eurodollar market transacts in longer tenors (three months, six months). Banks and trading firms are now constructing “term SOFR” rates by extrapolating from overnight data—a technically sound but less liquid market than LIBOR ever was.

The eurodollar market is also shrinking relative to onshore dollar markets. Regulatory changes since 2008—higher capital requirements, stricter leverage limits, and stress-testing—have made offshore dollar banking more expensive. Some multinational banks have scaled back their London and Asian dollar-trading desks. Meanwhile, technological change, the rise of cryptocurrency exchanges and peer-to-peer lending, and the proliferation of central bank digital currencies (still experimental) may eventually disrupt how short-term dollar funding flows.

Yet the eurodollar market remains vast and central to global finance. Any corporation that operates internationally, any hedge fund that needs dollars, and any bank that participates in offshore carry trades depends on the steady functioning of the eurodollar market. It is a reminder that modern finance operates in multiple currencies, across borders, and often beyond the sight of any single regulator.

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