What "the rate" actually means
Search "EUR to USD" and you'll get a number instantly — but that number is the mid-market rate, and it's not the rate you'll actually get when you convert money through a bank, broker, or payment provider. Understanding the gap between the two is one of the most useful things a finance team can know, because it's often a larger cost than any explicit fee on the transaction.
What the mid-market rate is
The mid-market rate is the exact midpoint between the buy price and the sell price of a currency pair at any given moment, based on global trading activity. It's sometimes called the "real" exchange rate, the "interbank" rate, or the "interbank mid-rate." It's the rate banks and large institutions trade with each other at — not the rate offered to a business or individual converting money.
This rate changes constantly throughout the trading day as the market moves, and it's what's quoted by financial data providers, news sites, and tools like Google or XE when you search for a currency pair.
How providers actually price your conversion
When you convert currency through a bank, broker, or payment platform, you're rarely given the mid-market rate. Instead, the provider applies a markup — sometimes called a margin or spread — on top of it, and that markup is built into the rate you're shown, rather than appearing as a separate visible fee.
For example, if the mid-market rate for EUR/USD is 1.1700, a provider might offer you 1.1580 instead. The difference, roughly 1%, is the margin — and on a €100,000 invoice, that's $1,200 you wouldn't see on any invoice or fee line, because it's baked invisibly into the rate itself.
This is different from an explicit transfer fee, which at least shows up clearly as a line item. A rate margin is harder to spot because most people don't have the mid-market rate memorized to compare against.
Why this is so easy to miss
Most providers don't hide the markup maliciously — it's simply built into how currency conversion has traditionally been priced across the industry, including by major banks. The rate shown to you already includes the markup, so unless you separately check the mid-market rate at the same moment and compare, there's no obvious signal that you're paying more than the "real" rate.
This is part of why a payment that looks competitive on fees alone (say, advertising "no transfer fee") can still end up more expensive overall than a provider charging a small visible fee but offering a rate much closer to mid-market.
How to check what you're actually being charged
A simple way to estimate the margin on any quote: look up the current mid-market rate for the pair (any financial data site or the live rate shown on the Easier FX dashboard works for this), then compare it to the rate you've been quoted by your bank or provider. The percentage difference between the two is roughly the margin being applied.
As a rough orientation: traditional banks have historically applied markups in the range of 2–4% on international payments, though this varies significantly by bank, currency pair, and transaction size. Specialist FX and payment providers focused on competitive pricing often bring this down to a fraction of a percent, particularly for major currency pairs and larger transaction sizes.
Why this matters more on larger payments
A 1% margin on a $500 personal transfer is $5 — easy to overlook. A 1% margin on a $250,000 supplier invoice is $2,500. For businesses making regular international payments, even a small difference in margin compounds significantly over a year of invoices, which is why it's worth understanding — and periodically checking — what margin you're actually paying, even if you have no plans to change providers.
Margin is only half the picture
Even with a perfectly competitive margin, when you convert still matters enormously, because the underlying mid-market rate itself moves throughout the day, week, and month. A well-priced conversion executed at a bad moment in the market can still cost more than a slightly worse-priced conversion executed at a good moment. This is the part most pricing comparisons miss entirely — and it's the part Easier FX is built specifically to help with.
See live mid-market rates and track how timing affects your invoices →