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Calculate Your Foreign Exchange Savings

Understand how much you could save with competitive FX rates vs typical bank margins.

Interactive FX Calculator

Mid-market rates auto-updated at least daily · last updated 19 Aug 2026

Understanding Foreign Exchange Margins

What is an FX Margin?

When you exchange currency, the provider adds a margin (markup) to the mid-market exchange rate. This margin represents their profit on the transaction. While margins are standard practice, they vary significantly between providers.

Mid-market rate: The real exchange rate you see on financial news sites—the midpoint between buying and selling prices in global currency markets. No provider can offer this exact rate, but competitive providers get much closer to it than traditional banks.

Why High Street Banks Charge Higher Margins

Traditional high street banks typically charge FX margins between 3-5% (sometimes higher) for several reasons:

  • Legacy infrastructure costs: Maintaining branches, outdated systems, and manual processes
  • Cross-subsidization: FX margins help subsidize other "free" banking services
  • Limited competition awareness: Many business customers don't compare FX rates
  • Bundled pricing: FX margins are often hidden within broader relationship pricing

How Modern Payment Providers Offer Better Rates

Specialist payment providers and modern banking infrastructure partners typically offer margins of 0.7-1.5%:

  • Digital-first infrastructure: Lower operational costs mean savings passed to customers
  • Transparent pricing: Competitive pressure keeps margins tight
  • Volume efficiency: Higher transaction volumes enable better wholesale rates
  • Specialized focus: FX is core business, not a side service

Real-World Impact on Your Business

The difference between a 4% margin and a 0.7% margin may seem small, but it compounds significantly:

Annual FX Volume Cost at 4% Margin Cost at 0.7% Margin Annual Savings
£100,000 £4,000 £700 £3,300
£500,000 £20,000 £3,500 £16,500
£1,000,000 £40,000 £7,000 £33,000
£5,000,000 £200,000 £35,000 £165,000

For businesses with regular international transactions, these savings go straight to the bottom line. Over a 5-year period, a company processing £1M annually in FX could save £165,000 or more.

Hidden FX Costs Beyond the Margin

Many businesses focus only on the exchange rate but overlook additional costs:

  • Transfer fees: Fixed fees per transaction (often £15-40 per transfer)
  • Intermediary bank charges: Additional fees from correspondent banks in the payment chain
  • Receiving bank fees: Charges applied by the beneficiary's bank
  • Currency conversion at destination: Double conversion if payment currency doesn't match account currency

Modern payment infrastructure minimizes or eliminates many of these additional costs through direct routing, local payment rails, and multi-currency account structures.

When Should You Review Your FX Provider?

Consider evaluating alternative FX providers if you:

  • Process more than £50,000 in annual foreign exchange transactions
  • Make regular international payments (weekly or monthly)
  • Pay international suppliers or employees
  • Receive payments from international customers
  • Hold balances in multiple currencies
  • Want transparent, predictable FX costs

What to Ask Your FX Provider

When comparing FX providers, request clear answers to these questions:

  1. What is your margin above the mid-market rate? (Get a specific percentage, not "competitive rates")
  2. Are there any transfer fees per transaction? (Fixed fees significantly impact smaller transactions)
  3. How are your rates determined? (Live rates vs daily fixed rates vs individual negotiation)
  4. What are the intermediary bank charges? (Who pays correspondent bank fees?)
  5. Can you hold funds in multiple currencies? (Avoid unnecessary conversions)
  6. What is the typical payment processing time? (Speed affects treasury management)
  7. Is there a minimum transaction size or monthly volume requirement?

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FX Calculator FAQs

Are these real-time exchange rates?

The mid-market rate is refreshed automatically at least once a day from live market data, so it closely tracks the real market rather than a fixed example — but it is not tick-by-tick real-time. The "bank" and "competitive" rates are illustrative margin examples, not actual quotes. For a live, transaction-specific rate, please contact us directly or create an account to access live pricing.

Will I get exactly the "competitive rate" shown?

Actual rates depend on multiple factors including current market conditions, transaction size, currency pair, and timing. The competitive rates shown represent typical margins for business customers, but your specific rate may be better or different based on your circumstances. We can provide accurate quotes for your specific needs.

How accurate is the "typical bank rate"?

The calculator applies a 3.5% margin to approximate typical high street bank rates. However, bank margins vary (often between 3-5%, sometimes higher) based on customer relationship, transaction size, and currency pair. This is a general estimate for comparison purposes.

What factors affect my actual FX rate?

Key factors include: transaction size (larger volumes typically get better rates), currency pair (major pairs like GBP/EUR/USD usually have tighter margins), payment frequency (regular customers may negotiate better terms), market volatility, and the specific provider's pricing model.

Are there additional fees beyond the FX margin?

This calculator shows only the FX margin comparison. Additional fees may include transfer fees, intermediary bank charges, and receiving bank fees. These vary by provider and payment method. When comparing total costs, always ask for a complete breakdown including all fees.

How do I get a quote for my actual transactions?

Create a free account to access live rates, or contact our team with details of your currency pairs, typical transaction sizes, and frequency. We'll provide accurate, current pricing tailored to your business needs.