Exchange rates affect every UK business that buys or sells internationally — whether you recognise it or not. If your business imports goods, pays overseas suppliers, receives foreign currency from customers, or pays for software priced in dollars or euros, you have currency exposure. A 5% move in sterling can wipe thousands from your margins on a single contract. This guide explains exactly where the risk sits and what to do about it.
How Exchange Rates Affect Business Margins
The impact is direct and often underestimated. A UK importer buying goods priced in US dollars sees the sterling cost of every shipment change as GBP/USD moves. A UK exporter invoicing overseas customers in euros sees the sterling value of those receivables shift between invoice date and payment date. In both cases, the commercial deal is fixed but the financial outcome isn’t — until the currency is converted.
The most common mistake is treating currency as a finance issue that gets dealt with when an invoice arrives. By then, the rate risk has already been taken. Pricing decisions, supplier contracts, and customer quotes all embed currency exposure long before money moves. Businesses that manage this well protect margins. Those that don’t absorb the loss quietly — often without realising the cause.
The Three Types of Currency Risk for UK Businesses
1. Transaction risk
The most common type. You agree a price in a foreign currency and settle later. Between the deal and the payment, the exchange rate moves. A UK importer who agrees to pay $500,000 for goods in 60 days has locked in a commitment but not a rate. If GBP/USD falls from 1.30 to 1.25 in that period, the sterling cost rises by nearly £15,000 on the same order.
2. Translation risk
Relevant for businesses with overseas subsidiaries or foreign currency assets and liabilities on their balance sheet. When accounts are consolidated into sterling, exchange rate movements affect reported profits even where no actual cash has been converted.
3. Economic risk
The longer-term competitive effect. A stronger pound makes UK exports more expensive for foreign buyers, potentially reducing demand. A weaker pound raises import costs, squeezing margins for businesses dependent on overseas supply. This type of risk is harder to hedge but essential to plan for in pricing strategy.
Real-World Impact: What Rate Moves Cost
| Scenario | Rate: Favourable | Rate: Adverse | Difference |
|---|---|---|---|
| Pay $250,000 supplier invoice | GBP/USD 1.30 = £192,308 | GBP/USD 1.22 = £204,918 | £12,610 more |
| Receive $500,000 from US customer | GBP/USD 1.22 = £409,836 | GBP/USD 1.30 = £384,615 | £25,221 less |
| Pay €100,000 EU supplier | GBP/EUR 1.18 = £84,746 | GBP/EUR 1.10 = £90,909 | £6,163 more |
For a business running at 10% net margins, a £12,000 unexpected FX cost on a £200,000 contract eliminates 60% of the expected profit on that deal. These are real rate ranges seen in 2024–26.
Where UK Businesses Most Commonly Lose to FX
- Paying overseas suppliers in their currency — USD for US goods, EUR for European supply, CNY for Chinese manufacturing. The rate between order and payment can shift significantly on longer lead times.
- Receiving foreign currency from customers — exporters who invoice in euros or dollars carry rate risk on every receivable until it’s converted.
- Software, SaaS and cloud subscriptions — many platforms charge in USD regardless of where the business is based. Recurring dollar costs fluctuate in sterling terms month to month.
- Freight and logistics — shipping costs are often dollar-denominated. Fuel surcharges and international freight move with both the commodity price and the exchange rate.
- Overseas payroll and contractors — paying remote staff or freelancers in their local currency creates ongoing FX exposure that compounds over time.
How to Protect Business Margins from Currency Risk
Forward contracts
The most widely used tool for business currency risk. A forward contract locks in an exchange rate for a future payment — up to 12 months ahead. If you know you’ll need to pay a US supplier $300,000 in three months, you can fix the sterling cost today. This eliminates rate risk and allows precise budgeting. A small deposit is typically required upfront, with the balance paid at settlement.
Spot transfers timed strategically
For less predictable payments, a spot transfer converts at the current rate. The key is using a specialist rather than your bank — the 2–3% margin banks charge versus a specialist’s 0.3–0.8% adds up significantly across a year of payments. See our guide on what international transfers actually cost from the UK.
Rate alerts
A rate alert notifies you when a target rate is reached. For businesses with flexibility on payment timing, this is a low-effort way to act when the market moves in your favour without watching rates daily.
Natural hedging
If your business both receives and pays in the same currency, offset the exposure without financial instruments. A UK exporter receiving euros who also buys from European suppliers can net off euro exposure — only converting the surplus. This reduces the volume of currency at risk at zero cost.
Currency pricing strategy
For exporters, invoicing in sterling eliminates rate risk — but may reduce competitiveness where buyers expect to pay in their currency. A practical middle ground: quote in the customer’s currency but price at a rate 1–2% more conservative than spot, absorbing minor moves without margin erosion.
The Hidden Cost: Bank Margins on Business FX
Most UK businesses use their main bank for international payments by default. Banks typically apply a 2–3% margin above the interbank rate on currency conversion. For a business making £500,000 in annual international payments, that’s £10,000–£15,000 per year in avoidable costs. A currency specialist working with FCA-authorised partners charges 0.3–0.8% — a saving of £6,000–£13,000 on the same payment volume. See our full business foreign exchange guide for more detail.
Building a Currency Strategy for Your Business
- Map your exposure — list every foreign currency your business pays or receives, the approximate volumes, and the timing
- Separate predictable from unpredictable — regular supplier payments suit forward contracts; variable costs suit spot transfers with rate alerts
- Set a rate policy — agree internally what rate you’ve budgeted for each currency pair in your forecasts
- Review quarterly — exchange rate environments change; review your hedging position alongside your financial forecasts
- Use a specialist, not your bank — a currency specialist with FCA-authorised partners will consistently outperform your bank on rate and provide better access to hedging tools
Frequently Asked Questions
How do exchange rates affect business profitability?
A rate move of 5% on a £500,000 international payment costs £25,000 — often more than the entire profit margin on that deal. Exchange rates change the sterling cost of foreign currency payments and the sterling value of foreign currency receipts, directly eroding margins when unmanaged.
What is the best way for a UK business to manage currency risk?
For predictable future payments, a forward contract locks in today’s rate and eliminates uncertainty. For variable payments, use a currency specialist on spot transfers with rate alerts to act when rates are favourable.
Does my business need a currency strategy?
If your business makes or receives any payments in foreign currency, you have FX exposure. For businesses with more than £50,000/year in international payments, a basic strategy typically pays for itself many times over in reduced costs and protected margins.
Should I invoice overseas customers in sterling or their currency?
Sterling invoicing removes your rate risk but puts it on the customer, which may hurt competitiveness. If invoicing in foreign currency, price conservatively and consider a forward contract on the expected receipt.
How much do banks charge businesses for international payments?
2–3% above the interbank rate plus a transfer fee. A currency specialist charges 0.3–0.8%, saving thousands annually on significant payment volumes. Full breakdown in our guide on the cost of international transfers from the UK.
What is a forward contract and how does it help my business?
A forward contract fixes the exchange rate for a future payment up to 12 months ahead, giving you budget certainty and protection against adverse rate moves. See our full guide on how forward contracts work.
Cambridge Currencies works with UK businesses to reduce FX costs and manage currency risk on international payments. We work exclusively with FCA-authorised payment partners, ensuring your funds are fully protected at every stage. Request a free quote or speak to a specialist about your business currency requirements today.
