What Is a Currency Swap?
A currency swap exchanges principal and interest in one currency for another. Learn when businesses use them and how they differ from forward contracts.
Key Takeaways
- A currency swap exchanges both principal and interest payments in different currencies
- Used to access foreign currency financing at better rates than direct borrowing
- Different from an FX swap which only exchanges principal
- Primarily used by large corporates and financial institutions — SMEs rarely need them
What a currency swap is
A currency swap (cross-currency swap) is a financial contract between two parties to exchange principal amounts in different currencies at the outset, make interest payments in the received currency during the swap's life, and re-exchange the principal at the contract's end. Unlike a forward contract which settles once, a currency swap runs for months or years with ongoing cash flows.
How it differs from an FX swap
An FX swap involves two legs: a spot exchange today and a forward exchange at a future date, exchanging only principal. A currency swap adds interest payment exchanges throughout the life of the contract. An FX swap is typically short-term (overnight to one year), used for liquidity management. A currency swap is typically medium to long-term (one to ten years), used for financing.
A practical example
A UK company needs €5 million for a five-year investment in its French subsidiary. Rather than borrowing in euros directly, it borrows £4.5 million in sterling and enters a currency swap: exchanging £4.5 million for €5 million upfront, paying euro interest to the swap counterparty, receiving sterling interest to service its sterling debt, and re-exchanging principal at the end.
Who uses currency swaps
Currency swaps are primarily instruments for large corporates, banks, and institutional investors. The minimum transaction size, legal documentation requirements (ISDA Master Agreement), and complexity put them out of reach for most SMEs. For the vast majority of UK businesses with FX exposure, forward contracts and natural hedging are the appropriate tools.
The SME alternative
If you are a growing SME with increasing FX exposure, the right progression is: natural hedging first, then spot transactions for small needs, then forward contracts for known future obligations, then FX options for uncertain exposures. Currency swaps are a step beyond this that most growing businesses will never need.