Currency hedging: What it is and when it makes sense

If your business trades in foreign currencies and you have no hedging policy, you're absorbing foreign exchange (FX) risk as an unmanaged cost. Most mid-market finance teams delay formalising an FX hedging policy until after a loss makes it unavoidable. But the cost of waiting isn't the single bad quarter you notice. It's the years of margin erosion you absorb without realising how much you've left on the table.

European Commission research found that only 14% of firms have significant FX exposure measured over one week, but 67% have material exposure measured over 54 weeks. If you believe you're unexposed, you may be underestimating by a factor of nearly five. This guide covers the main hedging instruments, when each one applies, and how to build a policy that holds up under real conditions.

This article is a guide, not financial or tax advice. For decisions specific to your circumstances, consult your accountant, treasury adviser, or the relevant regulatory body.

What is currency hedging?

Currency hedging uses financial instruments or operational strategies to lock in exchange rates or create offsetting positions that neutralise your FX risk.

For mid-market businesses, the gap between exposure and protection is where the cost sits. A report from the Association of Chartered Certified Accountants (ACCA), surveying 119 SMEs and mid-caps across 15+ countries, including the UK, France, Spain, and Germany, found that hedging adoption rises sharply with company size. The businesses most exposed to FX volatility are often the least likely to have formal protections in place.

Why currency hedging matters for UK businesses right now

GBP/EUR is getting less predictable, and your margins may be exposed. A Bibby Financial Services study found that 54% of businesses without FX protection reported being negatively impacted by volatile exchange rates, with losses exceeding £53,000 per year. The root cause is diverging monetary policy: the European Central Bank (ECB) revised its 2026 eurozone inflation projection up to 2.6% in March 2026 after surging energy prices from the Middle East crisis. UK inflation follows its own path, and when central banks move at different speeds, GBP/EUR volatility follows.

A Bank of England working paper shows that UK trade flows represented 58% of GDP in 2020, which means even modest rate swings ripple through a large share of commercial activity.

GBP/EUR volatility isn't a short-term problem, either. The ECB's February 2026 meeting accounts noted a significant appreciation of the euro since spring 2025, with the disinflation impact expected to play out over three years.

How do the main currency hedging instruments work?

There are three main derivative instruments and one operational approach. The right choice depends on how certain the underlying transaction is and how much flexibility you need.

Forward contracts

A forward contract locks in an exchange rate for a fixed amount of currency on a future date. It's the most straightforward hedging instrument, and ACCA data shows that 25% of mid-caps use forwards as their primary method.

Say you confirm a €250,000 order with a German supplier, payable in three months. By entering a forward contract today at 0.865 EUR/GBP, you lock in a cost of approximately £216,250. Sterling could strengthen or weaken in the meantime.

The trade-off is real, though. You gain certainty and give up any upside if the rate moves in your favour after you lock in.

Reporting implications. Forward contracts have specific accounting treatment under Financial Reporting Standard (FRS) 102 and International Financial Reporting Standard (IFRS) 9, covered in the hedge accounting section below.

Currency options

A currency option gives you the right, but not the obligation, to exchange currency at a pre-set rate on or before a specified date. You pay an upfront premium for this flexibility.

Options make the most sense when you're not certain the underlying transaction will happen. If you're bidding on a contract priced in a foreign currency and may not win it, an option lets you hedge the downside without committing to a transaction that might never close. They're also useful when locking in a rate via a forward feels premature.

Only 15% of surveyed businesses use options as their primary hedging method, given their higher complexity and cost. That said, Financial Director reported that options turnover among UK corporates jumped in the second half of 2018 as businesses scrambled for more flexible strategies ahead of Brexit.

Natural hedging

If you receive €5 million in EUR sales and pay €3 million in EUR purchases, you only need to hedge the net €2 million. That's natural hedging: structuring your operations so that foreign currency inflows and outflows offset each other. You may still use derivatives for the residual gap, but the notional amount drops.

This EC study found that 22 of 33 surveyed euro-area firms do this systematically, matching the currencies of revenues and expenditure, assets, and liabilities. It's the second most popular approach among mid-market firms after forwards, with 22% using it as their primary method.

Natural hedges only work when timing aligns. A EUR receivable expected in Q1 doesn't perfectly hedge a EUR payable in Q4, and you're still exposed during the interim period.

When does currency hedging make sense?

Your exposure needs to be material enough to justify the cost and complexity. A formal hedging programme usually makes sense when one or more of these conditions apply:

• Single transaction size exceeds €250,000. An FT analysis uses a UK company with a €250,000 payable as a baseline case where hedging is clearly worthwhile. FX rates can erode your margins between purchase order approval and invoice payment faster than most teams expect.

• Cumulative annual FX exposure exceeds £500,000 to £1 million. At this scale, even a 5% to 10% adverse currency move materially impacts your margins and your budgeting process.

• Long time horizons create hidden exposure. As the EC data above shows, most firms underestimate their FX exposure because they measure it over weeks, not quarters. The longer your payment cycles, the wider the window for adverse moves.

• Your budget relies on a specific FX assumption. When you set annual budgets in sterling and rely on a fixed EUR/GBP rate, a forward contract programme locks in those budget rates and removes a major source of financial planning variance.

• You're expanding into new markets. New foreign currency revenue or cost streams create exposure before you have the historical data to assess the risk. Building an FX policy before your exposure grows is far cheaper than reacting after a loss.

If more than one of these applies, the case for a formal hedging policy is strong.

Hedging costs themselves vary based on interest rate differentials, the currency pair, and the tenor of the contract. For forward contracts, the cost is the forward points: the difference between the spot rate and the forward rate, driven by the interest rate gap between the two currencies. In low-differential pairs like GBP/EUR, that cost can be minimal. Options cost more because you pay an explicit premium upfront.

To understand the cost of not hedging, consider June 2016. When the UK voted to leave the EU, sterling fell by 11% against the dollar within days. If you had unhedged dollar-denominated costs, that was an immediate double-digit cost increase with no ability to respond.

How to build a currency hedging strategy

A hedging programme needs to survive contact with reality, not just look rational on paper. That means getting three things right: governance, exposure mapping, and instrument selection.

Step 1: Establish board-level governance and an FX risk policy

Your FX hedging policy should cover these areas.

• Risk tolerance thresholds: define when hedging is mandatory versus discretionary.

• Approved instruments: specify which derivatives are permitted, for example, vanilla forwards and plain vanilla options, and exclude exotic products.

• Target hedge ratios: set what percentage of identified exposure should be hedged. Many mid-market businesses hedge 50% to 80% of confirmed near-term exposures and apply lower ratios for longer-dated forecasts, because short-term cashflows carry greater certainty.

• Approval hierarchies: state who can authorise hedging transactions.

• Review frequency: set how often the policy is reassessed, for example quarterly, or triggered by a material change in business fundamentals.

The goal is a policy that gives treasury clear guardrails without requiring board sign-off on every trade.

Step 2: Map your exposures and select instruments

Not all FX exposure carries the same certainty, and the right instrument depends on which category each exposure falls into.

• Transaction risk covers fully certain cashflows from confirmed orders, signed contracts, and foreign currency payables. This is the clearest case for hedging and is similar to fixing any other business cost.

• Pre-transaction risk applies to bids or quotes where the business may not materialise. Options suit this category because they give you protection without locking you into a transaction that might never close.

• Economic risk is structural and addressed through pricing or operational strategy rather than derivatives.

Spend visibility matters here. You need to know where your exposure sits before you can hedge it, and in many mid-market businesses, that data is scattered across subsidiaries, departments, and payment systems. A consolidated view of international spending across entities puts you in a far better position to assess your net exposure and decide what to hedge.

Start with your natural hedges (the offsetting flows identified earlier) before selecting any derivatives. For most mid-market businesses, the practical sequence is natural hedges first, then forwards for confirmed commitments, then options for uncertain ones.

Layering for flexibility

Rather than hedging your entire exposure at a single rate, consider layering hedges across several maturities. A rolling programme that hedges, say, 75% of the next quarter's exposure, 50% of the quarter after, and 25% of the quarter beyond that gives you protection while leaving room to benefit from favourable rate moves. This approach also avoids the cliff-edge risk of all your hedges expiring at the same time.

How does hedge accounting work under FRS 102 and IFRS 9?

Hedge accounting aligns the timing of gains and losses on your hedging instruments with the items they protect. That alignment prevents artificial profit and loss (P&L) volatility in your reported earnings. Without it, forward contracts must be recognised at fair value under FRS 102 and IFRS 9, and mark-to-market movements hit profit or loss each period even when the underlying commercial exposure hasn't changed.

A help sheet from the Institute of Chartered Accountants in England and Wales (ICAEW) confirms that the "synthetic hedging" approach previously permitted under Statement of Standard Accounting Practice (SSAP) 20 is no longer available. If you use forward contracts to hedge, you need formal hedge accounting designation to avoid that P&L noise.

You have two main designations under FRS 102:

• Fair value hedges cover firm commitments where you know the amount and date. Gains and losses on both the hedge and the hedged item hit the P&L, offsetting each other.

• Cash flow hedges cover forecast transactions where the amount is probable but not certain. The effective portion of gains and losses goes into Other Comprehensive Income (OCI) rather than hitting profit or loss immediately, which smooths your reported earnings.

As ACCA notes, the decision comes down to whether the documentation burden outweighs the benefits. If you have material FX activity, lower earnings volatility usually justifies the effort. For smaller programmes, accepting P&L volatility may be the more pragmatic choice.

What are the most common currency hedging mistakes?

Many hedging failures come from gaps in process, documentation, or visibility that go unnoticed until a position unwinds badly.

1. Missing subsidiary exposures. Your top five entities may be long €10 million, while 15 smaller entities aggregate to a €3 million short position. If you only hedge the headline long position without aggregating across multiple entities, you can create an unintended speculative position.

2. Poor documentation for hedge accounting. KPMG UK's hedge accounting Talkbook identifies three common failure modes in UK mid-market businesses: over-reliance on a single individual with no institutional knowledge, hedge accounting models operating as opaque "black boxes", and significant manual workarounds when de-designation events occur. Your documentation must exist at inception. You can't designate retroactively.

3. Confusing hedging with speculation. Simple test: if you can't name the specific commercial transaction you're protecting, reject the trade.

4. Ignoring natural hedges. Purchasing derivatives to hedge gross exposures before checking whether offsetting currency flows already exist wastes money.

5. The cautionary tale: European airlines incurred roughly $4.5 to $5 billion in fuel-hedging losses during COVID-19 because they had hedged 80% to 90% of normal consumption. Then the pandemic collapsed demand, and long-dated positions left no room to adjust. The lesson: avoid rigid hedge programmes. Layer maturities where appropriate, and build review triggers into your policy so you reassess positions when business fundamentals shift.

The common thread across all five mistakes is rigidity. Rigid assumptions about which entities matter, rigid dependence on one person's knowledge, rigid conviction that a position is a hedge, rigid use of gross rather than net exposures, and rigid programmes that can't flex when fundamentals change. A good hedging policy builds in the expectation that it will need to adapt.

Where to start with your currency hedging policy

If your FX exposure is growing, the starting point is straightforward: map your exposures across entities, identify your natural hedges, and present worst-case scenarios to your board. A hedging policy doesn't need to be complex to be effective, but it does need to exist before the next adverse move, not after it.

Getting visibility over multi-currency spending and international payments is the foundation for any hedging decision. Explore Spendesk's approach to consolidated spend visibility across entities.

Frequently asked questions about currency hedging

What is the most common currency hedging method for mid-market businesses?

Forward contracts. They lock in a fixed exchange rate for a known future payment or receipt, which takes the guesswork out of budgets and cash flow forecasts. ACCA survey data confirms forwards are the most common primary hedging method among mid-cap businesses. Most commercial banks can set them up, and they suit any confirmed transaction where the amount and timing are known.

How much does currency hedging cost?

It depends on the instrument. Forward contracts typically cost nothing upfront because the cost is embedded in the forward rate itself (a small premium or discount reflecting the interest rate differential between the two currencies). Options carry an explicit premium, which can range from 1% to 5% of the notional amount depending on volatility and tenor. Weigh those costs against the alternative: absorbing the full impact of an adverse rate move on an unhedged position.

Do you need hedge accounting under FRS 102?

Not necessarily. FRS 102 allows you to hedge economically without applying hedge accounting, but fair-value movements on forward contracts may then create profit-and-loss volatility. Hedge accounting smooths this by routing effective gains and losses through OCI. Whether the documentation burden is worth it depends on the size and frequency of your FX activity. If material FX swings would distort your reported earnings, formal hedge accounting is usually the better path.

How can finance teams improve visibility over multi-currency exposure?

Start by consolidating your foreign currency inflows and outflows across all entities in a single view. Most mid-market finance teams find their FX exposure scattered across departments, subsidiaries, and payment systems, which makes it impossible to assess net exposure accurately. A consolidated view of cross-border spending, whether through a spend management platform or treasury system, is the prerequisite for deciding what and how much to hedge.