A cross-currency swap exchanges cash flows in two currencies, typically including principal and periodic interest payments.
A cross-currency swap is a derivative in which two parties exchange cash flows denominated in different currencies. The structure commonly includes an initial exchange of principal, periodic interest payments in each currency, and a re-exchange of principal at maturity.
Currency swap is widely used as a shorter name for the same instrument family. The contract’s cash flows matter more than the label: an FX swap that exchanges principal on only two dates is a different, typically shorter-term structure.
A plain cross-currency swap can contain three stages:
Some swaps omit the initial exchange, reset notionals as exchange rates move, or use other payment conventions. The confirmation determines the actual obligations.
Assume a company can issue three-year U.S. dollar debt but needs euros for a project. It completes two separate transactions:
Ignoring day count, tax, collateral, discounting, and default:
| Date | USD debt | Cross-currency swap | Simplified combined cash flow |
|---|---|---|---|
| Inception | +USD 11,000,000 | -USD 11,000,000; +EUR 10,000,000 | +EUR 10,000,000 |
| Each annual payment date | -USD 550,000 | +USD 550,000; -EUR 300,000 | -EUR 300,000 |
| Maturity principal | -USD 11,000,000 | +USD 11,000,000; -EUR 10,000,000 | -EUR 10,000,000 |
On these assumptions, the package resembles a three-year EUR 10 million fixed-rate borrowing at 3.00%. The company receives the euros it needs, and the swap’s USD receipts offset the scheduled USD debt payments.
The word resembles matters. The USD lender has a claim on the company, while the company has a separate contract with the swap counterparty. If the counterparty fails, the company still owes its USD debt and may need to replace the swap at the current market price. Fees, basis, collateral, tax, accounting, payment timing, and credit terms can also prevent the combined cost from equaling exactly 3.00%.
The maturity exchanges are fixed in contractual currency amounts, but their value in one reporting currency changes with spot FX.
In the worked example, the contracted principal exchange rate is USD 1.10 per EUR because USD 11 million is paired with EUR 10 million. Suppose the euro later strengthens and spot EUR/USD becomes 1.20. Ignoring discounting, coupons, and collateral:
Viewed only as an undiscounted USD principal comparison, the swap is now USD 11 million - USD 12 million = -USD 1 million to the company. If spot instead moved to 1.00, the same comparison would be positive USD 1 million.
This is not the swap’s complete fair value. Proper valuation also includes every interest payment, time to payment, both yield curves, cross-currency basis, collateral terms, and counterparty adjustments. The example shows why a swap can generate collateral calls even though the contractual principal amounts have not changed.
| Structure | Leg 1 | Leg 2 | Typical exposure |
|---|---|---|---|
| Fixed-for-fixed | Fixed rate in currency A | Fixed rate in currency B | Currency and relative fixed-rate value |
| Fixed-for-floating | Fixed rate in one currency | Floating rate in the other | Currency plus one floating-rate exposure |
| Floating-for-floating | Floating benchmark in currency A | Floating benchmark in currency B, often plus a spread | Relative funding and cross-currency basis |
| Mark-to-market cross-currency swap | One notional periodically resets with FX movements | Other notional may remain fixed | Reduces accumulation of notional-related FX mark-to-market |
Floating benchmarks, observation conventions, fallbacks, payment lags, and day counts must be identified for each leg. A generic reference to “market rates” is not enough to reproduce cash flows.
When a reference-currency leg is calculated but converted into another settlement currency instead of being delivered, the transaction may be documented as a Non-Deliverable Swap.
In a non-resetting swap, both currency notionals generally remain fixed until the final exchange. A large FX move can therefore create a large replacement value between the two principal amounts.
In a mark-to-market cross-currency swap, one notional is periodically reset using an observed FX rate. For example, if a fixed EUR 10 million notional was initially paired with USD 11 million and the reset rate later became USD 1.20 per EUR, the reset USD notional could become USD 12 million. The contract may require a USD 1 million principal adjustment, with direction and timing determined by the confirmation.
Resetting can reduce the future FX-driven mismatch between notionals, but it does not eliminate risk. The adjustment itself requires liquidity, may not coincide with collateral movements, and can differ from the amount or timing of the exposure being hedged.
In a simplified frictionless model, covered interest parity links spot, forward exchange rates, and comparable currency rates. In actual markets, the pricing needed to balance a cross-currency swap can include a cross-currency basis spread on one floating leg.
The basis can reflect demand for funding in a currency, dealer balance-sheet costs, liquidity, credit and collateral conventions, and market segmentation. Its quoted sign depends on which leg receives the spread and the market convention.
For example, a confirmation might state that one party receives SOFR on the USD leg and pays euro short-term rate minus 0.20% on the EUR leg. If the euro reference rate for a one-year period were 2.00%, that leg’s simplified payment rate would be 1.80%. On EUR 10 million with an annual accrual fraction of 1.00, the payment would be EUR 180,000.
That example defines its own sign convention. A market screen showing -20 basis points is not self-explanatory unless the reader knows which currency leg carries the spread, which party pays it, and how the currency pair is quoted.
Do not compare basis quotes without matching:
See Covered Interest Parity for the underlying no-arbitrage framework.
An issuer can combine borrowing in one currency with a swap that produces payment obligations in another currency. The combined economics depend on both the debt and the swap; the swap does not alter the original lender’s claim unless the financing documents say so.
A firm or investor may align foreign-currency assets with funding in the same currency. Differences in amount, amortization, reset dates, or maturity can leave residual exposure.
An entity may borrow where it has market access and then swap the proceeds. Any apparent funding advantage must be measured after basis, spreads, collateral, fees, credit, and execution costs.
Periodic currency receipts or payments may be offset with corresponding swap legs. Forecast uncertainty and hedge-accounting requirements remain separate considerations.
| Feature | Cross-currency swap | Foreign Exchange Swap |
|---|---|---|
| Principal | Often exchanged initially and at maturity | Exchanged on near and far dates |
| Periodic interest | Usually exchanged | Usually no separate periodic coupons |
| Typical maturity | Often medium or long term | Often short term, though other tenors exist |
| Main use | Transform funding and rate cash flows | Temporary currency funding or settlement-date management |
| Main quote | Rates, spreads, basis, and full cash-flow terms | Near rate plus swap points |
An Interest Rate Swap generally exchanges rate cash flows in one currency and normally does not exchange cross-currency principal.
A cross-currency swap can be viewed as a set of projected cash flows in each currency:
For the company in the worked example, which receives USD and pays EUR after inception, a simplified USD value can be written as:
Here, (S_t) is spot USD per EUR. Each currency leg is first valued in its own currency. The EUR-leg present value is then translated into USD before the values are netted.
This expression describes the direction of the calculation, not a complete pricing model. The projected floating rates, cross-currency basis, collateral currency, discounting framework, payment lags, already-fixed coupons, credit adjustments, and closeout convention all affect the result. Converting undiscounted notionals at spot is not enough.
A reliable valuation report should let a reviewer trace:
An unexplained sign reversal is a common control failure. A model can produce the correct magnitude but the wrong asset-or-liability conclusion if pay and receive legs or the FX quote direction are inverted.
A cross-currency swap is effective only to the extent that its cash flows match the underlying exposure. Mismatches can arise when:
If the debt is repaid early, the swap does not normally disappear. The company can terminate it, transfer it with consent, enter an offsetting swap, or retain the exposure. Each choice can produce a positive or negative market value, transaction costs, documentation work, and hedge-accounting consequences.
Economic offset and accounting treatment are separate questions. A hedge that reduces cash-flow volatility may not qualify for, or may cease to qualify for, a particular accounting presentation. The entity should document the hedged item, hedge ratio, risk being hedged, effectiveness assessment, and treatment under the applicable reporting framework.
Principal settlement deserves special attention because the amounts can be much larger than periodic coupons. Payment-versus-payment arrangements can reduce the risk that one currency is delivered without receipt of the other, but availability depends on the currencies, counterparties, infrastructure, and transaction. Legal netting rights do not by themselves guarantee simultaneous settlement.
This article is for financial education only. Cross-currency swaps can create substantial market, basis, counterparty, collateral, liquidity, operational, legal, tax, accounting, and settlement risks. It does not provide individualized investment, derivatives, accounting, tax, legal, or hedging advice.