Most UK businesses use their bank to pay overseas suppliers by default — and it’s one of the most expensive habits in business finance. Banks apply a 2–3% margin above the interbank rate on every currency conversion, plus transfer fees. On £500,000 of annual supplier payments, that’s up to £15,000 per year in avoidable costs. A currency specialist working with FCA-authorised partners charges 0.3–0.8% — and gives you better tools to manage delivery timing and rate risk too. Use our exchange rate comparison tool to see how we compare, and read our guide on what international transfers actually cost from the UK for the full breakdown.
Why Paying Overseas Suppliers Costs More Than It Should
The visible cost of an international supplier payment is the transfer fee. The invisible cost is the exchange rate margin — the difference between the real interbank rate and the rate your bank actually applies. Our guide on why banks give worse exchange rates explains exactly how this works.
On top of this, payments routed through the SWIFT network can pass through multiple correspondent banks, each of which may deduct their own fee. Track any shortfall using an MT103.
The True Cost: Bank vs Specialist
| Annual Supplier Payments | Bank at 2.5% Margin | Specialist at 0.5% Margin | Annual Saving |
|---|---|---|---|
| £100,000 | £2,500 | £500 | £2,000 |
| £250,000 | £6,250 | £1,250 | £5,000 |
| £500,000 | £12,500 | £2,500 | £10,000 |
| £1,000,000 | £25,000 | £5,000 | £20,000 |
Live rates for common supplier currencies: GBP to USD converter | GBP to EUR converter | GBP to INR converter | GBP to CAD converter. Also see forecasts: GBP/USD | GBP/EUR | GBP/INR | AED/GBP.
Should You Pay Suppliers in Their Currency or Sterling?
- Your supplier receives the exact invoiced amount — no shortfalls from correspondent bank deductions at their end
- It strengthens the supplier relationship — removing uncertainty about what they’ll receive makes payment disputes less likely
- You control the conversion rate — when you pay in sterling and your supplier converts, they apply their bank’s rate, not yours. Use our currency converter to check the current rate before you commit.
The trade-off is that you take on the FX risk. But that risk is straightforward to manage with a forward contract or limit order. See our full guide on currency hedging for UK small businesses.
The Main Methods for Paying Overseas Suppliers
SWIFT bank transfer (via your high street bank)
The default for most UK businesses. Reliable but expensive — 2–3% margin plus fees, potentially slower (2–5 working days). See our SWIFT transfers guide for full detail. Poor value for regular, high-volume supplier payments.
Currency specialist (recommended for regular payments)
A currency specialist working with FCA-authorised partners provides significantly better exchange rates (0.3–0.8% margin), no platform transfer caps, and direct phone access. Your funds are always held in segregated client accounts. See our full business foreign exchange guide and the international business account payments page.
SEPA transfer (for Eurozone suppliers)
For payments to Eurozone suppliers in euros, SEPA transfers are fast (same or next working day) and low-cost. Use SEPA rather than SWIFT for any euro payment to an EEA country. Check the current GBP to EUR rate and GBP/EUR forecast.
Managing Currency Risk on Supplier Payments
Forward contracts
Lock in today’s exchange rate for a supplier payment due in the future — up to 12 months ahead. If you’ve placed a purchase order and know the payment amount and timing, a business forward contract fixes your sterling cost immediately. See our dedicated forward contracts product page and our forward contracts for UK businesses guide for full examples.
Rate alerts and limit orders
If your payment timing is flexible, a limit order auto-executes when your target rate is reached. A rate alert notifies you to act manually. Check our guide on whether now is a good time to exchange money and the weekly currency forecast for rate direction.
Natural hedging
If your business both receives and pays in the same currency, offset the exposure without converting. See our guide on receiving international payments for how to match inflows and outflows efficiently, and our full currency hedging guide. Also see the importers & exporters page for sector-specific guidance.
Practical Checklist: Setting Up Overseas Supplier Payments
- Collect full payment details before the invoice arrives — supplier’s full legal name, bank name, IBAN, SWIFT/BIC, and bank address
- Confirm the currency your supplier wants to receive — paying in their local currency avoids unexpected deductions at their end. Check the live rate via our currency converter.
- Check cut-off times for time-sensitive payments — see our guide on the best time to transfer money internationally
- Keep payment confirmations and MT103 references — if a supplier chases payment, an MT103 lets you trace it in the banking chain
- Verify documents are ready for large first transfers — see our guide on documents needed for large international transfers
- Set up your account before the first payment is due — compliance checks take time for new clients. Register here to get started.
Common Suppliers by Currency
China (CNY/USD)
Chinese suppliers often invoice in USD. USD payments via SWIFT are the standard route. Allow 2–3 working days and initiate early in the UK morning. Check the live GBP to USD rate and our GBP/USD forecast for current rate context.
Europe (EUR)
SEPA transfers for Eurozone suppliers are fast (same or next day), cost-effective, and require only an IBAN and BIC. Check the live GBP to EUR rate and GBP/EUR forecast.
USA (USD)
SWIFT transfers to US suppliers typically take 1–2 working days. The US has no IBAN system — you’ll need the supplier’s routing number and account number. Check the live GBP to USD converter and GBP to USD forecast.
India (INR/USD)
Many Indian suppliers invoice in USD. Check the live GBP to INR converter, our GBP to INR forecast and sterling to rupee forecast for the current rate outlook.
Frequently Asked Questions
What is the best way to pay overseas suppliers from the UK?
Use a currency specialist working with FCA-authorised partners rather than your bank. You’ll get a significantly better exchange rate (0.3–0.8% vs 2–3%), dedicated support, and access to forward contracts and limit orders to protect against rate movements. Compare rates using our exchange rate comparison tool.
Should I pay my supplier in their currency or in pounds?
Pay in their currency where possible. Your supplier receives the exact invoiced amount, disputes are reduced, and you control the conversion. Check the live rate via our currency converter and manage your FX risk with a forward contract if payment is due in 30+ days.
How long does it take to pay an overseas supplier?
SEPA (euro, EEA): same or next working day. SWIFT (USD, AED, AUD, INR): 1–3 working days. Full detail in our guide on how long international transfers take.
What details do I need to pay an overseas supplier?
Supplier’s full legal name, bank name and address, IBAN (or account number for US suppliers), SWIFT/BIC code, and the payment currency.
How can I protect my business from exchange rate movements on supplier payments?
A forward contract locks in today’s rate for a future payment, eliminating rate risk between order and settlement. For ad hoc payments, a limit order auto-executes at your target rate. See our full currency hedging guide.
What happens if my supplier doesn’t receive the full amount?
Shortfalls are usually caused by correspondent bank deductions along the SWIFT chain. Request an MT103 from your provider to trace the payment. Prevent them by specifying on your invoice that the full invoiced amount must arrive net of all charges.
Cambridge Currencies helps UK businesses pay overseas suppliers efficiently — with better rates than banks and a real specialist who understands your payment requirements. Check live rates via our currency converter or compare our exchange rates. 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 today.
