How many times have you heard it said, or perhaps thought it yourself: “It’s only a few cents difference on the exchange rate, it’s not worth changing operators”? It’s one of those phrases that seems reasonable until you reach for the calculator. Because when we talk about recurring currency exchange – as in the case of cross-border workers who convert their salary from Swiss francs to euros every month – even a minimum difference on the applied rate is transformed, over time, into a sum that is anything but negligible.
This is what sector operators informally call the snowball effect.
The spread: that almost invisible cost
To understand what we are talking about, let’s start from the beginning. When you convert Swiss francs into euros, the rate applied to you is never the “real” one you see on Google or on the financial markets: that is called the interbank rate, and it is the price at which banks exchange currency with each other. The rate offered to the final customer always includes a margin, called a spread, which represents the operator’s profit. A spread of 1% on a CHF/EUR exchange might seem negligible. But it is precisely this perception that makes the mechanism so sneaky.
How much is really lost: a concrete example
Let’s take a real and plausible case. John is a cross-border worker who works in Lugano. His net monthly salary is 4,000 CHF. Every month he converts them into euros to pay his mortgage, daily expenses, and put something aside. Let’s assume a reference CHF/EUR exchange rate of 1.05 (i.e., 1 Swiss franc is worth 1.05 euros). With this rate, 4,000 CHF corresponds to 4,200 euros.
Now let’s consider two scenarios:
- Operator A applies a spread of 0.5%, bringing the effective rate to 1.0447, and Marco receives 4,179 euros.
- Another operator B applies a spread of 1.5%, bringing the rate to 1.0342, and Marco receives 4,137 euros.
The monthly difference between the two scenarios is 42 euros. It doesn’t seem like a tragedy, right?
Yet, on an annual basis that figure becomes 504 euros. And over the span of ten years – with the same salary, the same operator, the same habit – John will have left over 5,000 euros on the table solely because of a spread that is 1% higher.
The avalanche effect over time
The avalanche metaphor is not accidental. A small snowball rolling down a slope seems harmless, but it is the distance traveled that transforms it into something enormous. It works the same way with currency exchange: every month the cost is almost imperceptible, but the time trajectory multiplies the impact in a surprising way. If we add to this that many cross-border workers do not just convert their monthly salary but also manage thirteenth-month pay, bonuses, expense reimbursements, and severance pay, the gap widens further.
A cross-border worker with a gross annual salary of 70,000 CHF – a figure that is far from rare in Switzerland – who converts everything through a channel with a spread of 1.5% instead of 0.5%, potentially ends up losing 700-900 euros a year, depending on the rate of the period.
Image generated with artificial intelligence Traditional banks, fintechs and currency exchangers: who applies what
The market of exchange operators is much more varied than you might think, and the differences in terms of spread are real and measurable. In general, traditional banks tend to apply higher spreads, often between 1.5% and 3%, to which fixed commissions per operation are sometimes added.
Fintech platforms and specialized online exchange services, on the other hand, work with much tighter margins. Some operators position themselves between 0.3% and 0.8%, with accessible entry thresholds even for average monthly amounts. It is in this bracket that services designed specifically for cross-border workers are placed, where the recurrence of operations and the predictability of the amounts allow every single conversion to be optimized.
We at moneyswapp.com, for example, operate with a spread of 0.19%, therefore very low, which allows us to be the number one online currency exchange service in Switzerland.
The variables to keep an eye on when choosing an operator are primarily three:
- The spread applied compared to the interbank rate of the day, which is the true indicator of the real cost of the conversion.
- The fixed commissions per operation, which disproportionately affect small amounts and instead become less relevant on higher figures.
- The frequency of rate updates, because a fixed daily rate can differ significantly from the real-time one on days of strong volatility.
It's not just a matter of savings: it's a matter of control
There is an aspect that is often overlooked in the debate on exchange costs: transparency. Knowing exactly what rate is being applied, at what time, and with what margins is a customer’s right. Yet many cross-border workers discover only afterwards – by comparing the credit received with the rate of the day – that they have paid more than expected. Choosing an operator that clearly shows the spread applied compared to the market rate is not a detail: it is the minimum condition to be able to make an informed comparison. And an informed comparison, as we have seen, can be worth thousands of euros over the course of a cross-border working career.
Small numbers, big difference
The next time someone says “for a few cents it’s not worth it,” it will be useful to remember John’s example. Forty-two euros a month seems like a little. Five thousand euros in ten years seems like a lot.
In truth, they are the same thing.
The difference in this case lies only in the observation point: those who look at the short term tend to underestimate, those who reason over longer horizons understand that optimizing the monthly exchange is not a matter for financial experts, but simply of economic common sense. For a cross-border worker, the exchange rate is not a figure to be read distractedly: it is an integral part of their real salary.
Image generated with artificial intelligence