Is It Better to Exchange Money at a Bank or a Currency Exchange?

Short answer

The question comes up constantly: is it better to go to the bank or a currency exchange? It's a good question, because the answer isn't as obvious as you might think. Many people assume their bank automatically offers the best service — after all, that's where their money is. But for cash currency exchange, that's rarely the case.

At Keyhan Exchange in Rosemère, we regularly see clients who started by checking with their bank before coming to compare. The scenario repeats itself: the bank doesn't have the currency in stock and needs a few days, or the posted rate is less favourable than expected. This guide explains why, and how to make the right choice for your situation.

Bank or currency exchange: quick comparison

Why the posted rate doesn't tell the whole story

There's a persistent myth that banks, being large institutions, must offer the best terms. In reality, cash currency exchange isn't a bank's core business — it's one service among hundreds. Currency exchanges, on the other hand, do nothing else. And that changes a lot.

Most people's first instinct is to look at the posted rate. But the rate alone doesn't tell you what you'll actually pay or receive. What matters is the final amount. Two institutions can post rates that look similar but give you very different amounts once everything is factored in.

The hidden costs you don't see

Here's how the margin on an exchange rate works: when an institution buys or sells a currency, it applies a spread between the interbank market rate (the "real" rate) and the rate it offers you. That spread is its margin. It doesn't appear as a "fee" on the receipt — it's built directly into the rate.

Concretely, if the market rate for the US dollar is 1.3650 CAD per 1 USD, an institution selling you USD at 1.4050 CAD is taking a margin of about 2.9%. Another selling at 1.3750 CAD is taking a margin of about 0.7%. The higher the sell rate is above the market rate, the higher the margin — and your real cost. The difference isn't obvious at a glance, but you feel it in your wallet.

That's why you should always compare three things:

A concrete example: comparing the real difference

Consider a real scenario: a family is travelling to the United States and needs US dollars (USD). They need to buy USD with Canadian dollars (CAD). The market rate that day is 1.3650 CAD per 1 USD — meaning it theoretically takes 1.3650 CAD to get 1 USD, with no margin at all.

In practice, no institution sells at that exact rate. Each institution applies its own margin to the sell rate — the price you pay in CAD to get USD. The higher that margin, the more the CAD cost climbs.

In this example, the bank applies a higher margin on its sell rate — so it charges more Canadian dollars for the same amount of USD. On 500 USD, the difference might seem modest. But for a family buying 2,000 USD before a trip, choosing the institution with the lowest margin means $60 in savings — about the cost of a restaurant meal or a tank of gas for the road.

The lesson: never compare just the posted rate. Always ask for the final amount you'll pay (or receive, if you're selling currency) — that's the only number that reflects the real cost of the transaction.

The most requested currencies — and why availability matters

Not all currencies behave the same way depending on where you look for them. Here's what we see frequently:

US dollar (USD): Available everywhere, but rates vary a lot. It's the most exchanged currency in Canada, so comparing pays off especially well.

Euro (EUR), British pound (GBP): Generally available at specialized currency exchanges. Some banks carry them, others order them on request with a delay.

Mexican peso, Swiss franc, Japanese yen, and other less common currencies: This is where the difference between a bank and a specialized currency exchange really shows. A currency exchange that keeps a large inventory can serve you immediately. A bank may ask you to wait several business days — a problem when your departure is imminent.

At Keyhan Exchange, more than 50 currencies are available on-site, with no advance order required. For a client leaving on a trip the next day, or who just got back with foreign bills, that's often the deciding factor.

Should you exchange money at the airport?

As a general rule, no — and that's true at almost every airport in the world. Exchange counters in departure or arrival areas operate in a captive environment: you're in a hurry, you don't have time to compare, and you often don't have another option nearby. These conditions allow for much higher margins than at a regular currency exchange.

The best strategy stays simple: plan ahead. Exchange your money a day or two before departure, at a trusted currency exchange. If you come back with unused currency, exchange it quickly rather than letting it sit — rates move constantly.

When is the bank actually the best choice?

It would be dishonest to say a currency exchange is always better than a bank. It isn't. There are specific situations where the bank remains the better option:

International wire transfers: If you need to send money abroad directly into a bank account, the bank is generally the simplest and most secure route. Currency exchanges deal in cash — they don't process electronic transfers.

Very large amounts for official transactions: For an overseas real estate payment or a major business transaction, a bank can offer the traceability and infrastructure suited to that kind of transaction.

Foreign currency accounts: If you need to maintain a balance in a foreign currency in a bank account, your financial institution remains the right place.

Outside of these specific cases, for buying or selling cash currency, a specialized currency exchange generally offers a faster, simpler, and more advantageous experience.

How to choose a good currency exchange

Not all currency exchanges are equal. Before handing over your money, a few checks are worth making:

FINTRAC registration matters in particular: it confirms the exchange meets Canadian regulatory obligations around anti-money laundering. An unregistered exchange operates outside the legal framework — that's a real risk.