The True Cost of Bank Exchange Rates: What Your Bank Doesn't Tell You
Understanding the Interbank Rate
Every currency exchange begins with the interbank rate — the mid-market benchmark that major banks use when trading with one another. This is the "real" exchange rate you see on financial data terminals like Reuters or Bloomberg.
When you walk into your bank or use their online platform to transfer money abroad, you won't receive this rate. Here's why.
The Retail Spread Explained
High-street banks typically add a retail spread of 3–5% on top of the interbank rate before passing it on to customers. This margin is largely invisible — it's built into the quoted rate rather than shown as a separate fee.
A Concrete Example
Let's say the interbank GBP/EUR rate is 1.1700. Here's what different providers might offer:
| Provider | Rate Offered | Cost on £100,000 | |----------|-------------|-----------------| | Interbank Rate | 1.1700 | — | | Aetas Global | ~1.1670 | ~€300 difference | | High-Street Bank | ~1.1350 | ~€3,500 difference |
On a £100,000 transfer, the bank's spread could cost you over €3,500 compared to the interbank rate — and that's before any additional transfer fees they may charge.
Why Specialist Providers Offer Better Rates
Specialist currency providers like Aetas Global access wholesale FX pricing through institutional liquidity channels. Because we handle large volumes of currency transactions, we can access rates that are simply not available to retail customers through a standard bank.
We apply only a narrow, transparent margin — and there are no additional transfer fees. The rate we quote is the rate you get.
How to Check Your Rate
Before your next international transfer:
- Check the live interbank rate on a financial data platform
- Compare it to the rate your bank quotes you
- The difference is the hidden cost you're paying
- Get a quote from a specialist provider and compare
Knowledge is power. Simply knowing the interbank rate puts you in a stronger position to negotiate or choose a better provider.
Start Saving Today
If you're planning a transfer of £2,000 or more, the rate difference between your bank and a specialist provider becomes meaningful. Get a free, no-obligation quote from Aetas Global and see exactly how much you could save.
This article is for informational purposes only and does not constitute financial advice.
