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FX swaps for businesses: exchange currencies now and reverse the trade later

A practical UK guide to foreign-exchange swaps covering spot and forward legs, short-term liquidity, rollover risk, pricing, collateral and reconciliation.

An FX swap combines two currency transactions: the business exchanges currencies on one value date and agrees to reverse the exchange on a later date at a pre-agreed forward rate. Companies use swaps to manage short-term foreign-currency liquidity without taking the same outright currency position as a single spot or forward trade.

An FX swap has a near leg and a far leg

The company buys one currency and sells another for the near date, then reverses those currencies on the far date. Both exchange rates are agreed at the start.

The difference between the two rates reflects interest-rate differentials and market pricing rather than a separate explicit interest coupon.

Use swaps to bridge temporary currency cash needs

A UK company expecting dollars next month but needing dollars today can obtain them through the near leg while agreeing to return them when the future receipt arrives.

This can avoid taking an unsecured foreign-currency overdraft or converting long-term sterling cash permanently.

A swap is not automatically the same as hedging a future sale

A forward fixes one future conversion. An FX swap moves currency liquidity between dates. Treasury should be clear whether the objective is hedging economic exposure or funding a temporary currency shortfall.

Using the wrong instrument can create a mismatch between the commercial cash flow and the derivative settlement.

Repeated rollovers can hide a structural currency deficit

A short FX swap is useful for temporary timing. If the business rolls the same deficit every month, it may have a permanent foreign-currency funding need.

Review long-running rollovers and compare with a foreign-currency loan, natural hedge or longer-term funding structure.

The swap creates exposure to the bank or FX provider

Material swaps can sit under master agreements and credit limits. Counterparty pricing depends on currencies, term, market conditions and the company's credit relationship.

Use approved providers and understand collateral or closeout terms where relevant.

Record both currency legs and settlement dates

Keep trade confirmation, near-leg cash, far-leg cash and any valuation or accounting entries connected. Do not book the far-leg difference as an unexplained bank fee.

At month-end, treasury should know which swaps remain open and which foreign-currency balances are temporary because of those contracts.

Worked example: a company needs $2 million today to pay a supplier but expects a $2 million customer receipt in 30 days. An FX swap can deliver dollars today against sterling and reverse the currencies in 30 days when the customer cash is expected. The company bridges timing without taking a permanent dollar purchase.

Stress the far date. If the customer pays late, the business still owes the swap reversal on the agreed date and needs replacement dollars or a rollover. Treasury should never assume the commercial receipt and derivative maturity will always match perfectly.

Use swap purpose codes or treasury records that identify the underlying liquidity need. Repeated unexplained swaps can make it difficult for directors and auditors to distinguish hedging, funding and speculative activity.

Compare swap points across counterparties rather than only the spot rate. The economic price of an FX swap is reflected in the relationship between the near and far legs, so one provider can show an attractive spot quote while charging worse forward points.

Use legal-entity cash forecasts to decide which company should transact. A parent can execute centrally, but subsidiaries still need documented intercompany settlements if the parent provides or receives currency on their behalf.

Monitor concentration by counterparty and maturity. A business rolling large short-term swaps with one bank can create a meaningful exposure if that provider experiences operational or credit stress.

Record swap points and implied funding cost in treasury reports rather than treating the far-leg rate as a mysterious number. Comparing the swap with borrowing the foreign currency directly can reveal whether the structure is still economical as market interest-rate differentials change.

For quarter-end reporting, identify swaps that straddle the balance-sheet date. The near leg may already have changed bank balances while the far leg remains outstanding, so accounting should reflect the open derivative rather than treating the first conversion as a permanent currency purchase.

Set maximum rollover counts or review triggers. If a short-term swap has been rolled three or four times, management should reassess the underlying cash mismatch instead of assuming another rollover is normal treasury housekeeping.

Confirm holiday calendars for both currencies. The near and far legs depend on valid settlement days in each currency centre, and a local holiday can move value dates. Treasury should verify dates before promising supplier or customer settlement around year-end periods.

Editorial Verdict

FX swaps are useful short-term liquidity tools when the business needs one currency now and expects the opposite currency flow later.

Match the far leg to realistic cash timing and monitor rollovers. The instrument should solve a temporary currency funding gap, not hide a structural mismatch indefinitely.

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