Currency conversion fee
A currency conversion fee is the charge you pay when money moves between two currencies, usually taken as a percentage mark-up on the exchange rate rather than shown as a separate line. For Irish players it appears when a euro deposit lands in a casino account held in sterling or dollars, or when a wallet converts a withdrawal on the way back. It is rarely large on one transaction. Over a year of deposits and cashouts, though, it adds up quietly.
How the conversion fee is calculated
The fee starts from a base rate, normally the wholesale or mid-market rate for that currency pair on the day. The provider then sets its own transaction rate a few per cent worse, and the gap between the two is the fee.
So the formula is simple: fee = amount × (base rate – transaction rate) ÷ base rate.
Take a €100 deposit into a sterling account. If the base rate gives you £85.00 and the provider’s rate gives you £81.61, you have paid roughly 4% without ever seeing the word “fee”. That is why the charge is easy to miss: the cashier shows a converted figure, not the deduction that produced it.
Some providers also add a flat percentage on top of their own rate, which means two layers on one transaction.
Published conversion charges by payment method
The figures below come from each provider’s own published fee pages. They change, and some vary by country and account type, so treat the provider’s current page as the final word.
| Payment method | Who converts | Published charge | What changes it |
|---|---|---|---|
| Debit card | Your bank or card scheme | Set by your bank | Bank and card type |
| PayPal | PayPal | Spread of 3-4% on its US page | Transaction type, region |
| Skrill | Skrill | FX fee up to 3.99% | Transaction type |
| Revolut | Revolut | Plan-based mark-up | Plan, monthly allowance, weekends |
| Casino cashier | The operator | Varies by operator | Account currency chosen at sign-up |
Where Irish players meet the charge
The most common trigger is an account opened in the wrong currency. If a site defaults to sterling and you fund it from a euro card, every deposit and every withdrawal is converted, which means you pay the fee twice on the same money.
Wallets add a second spot.
A Skrill or PayPal balance held in one currency and used at a casino that works in another gets converted inside the wallet, before the operator ever sees it. Revolut’s UK fee page, for instance, lists a fair-usage allowance on its Standard and Plus plans and a separate mark-up on exchanges made between Friday evening and Sunday evening, New York time, and Irish terms may differ from that page. Withdrawals are where the cost tends to surprise people, because the amount you requested and the amount that reaches your bank no longer match, and the cashier rarely explains the gap. What I check first on any new account is the account currency field in the profile, since it is usually fixed once you have deposited.
What it is often confused with
A currency conversion fee is not a deposit or withdrawal fee. Those are charged for moving money at all, in the same currency, and a transaction can carry both.
It is also different from dynamic currency conversion, where a card terminal or checkout offers to charge you in euro instead of the merchant’s currency. Accepting that offer hands the conversion to the merchant’s provider, and the rate offered is often worse than your own bank’s. Declining it and paying in the merchant’s currency leaves the conversion with your card issuer, whose charges EU rules require to be shown as a mark-up over the European Central Bank reference rate.
Finally, the fee is separate from exchange-rate movement. If sterling weakens between your deposit and your withdrawal, you lose money even at a zero fee, and no provider refunds that.
