Work through a simple case. You deposit 200 euros into a platform that advertises multi-currency accounts, you hold euros throughout, you never request a conversion, and there are no stated fees at either end. Months later you withdraw 850 euros and 820 euros arrives in your bank account. Thirty euros, or about 3.5 per cent, has gone somewhere, and no line item on any statement names it.
That gap is the defining feature of multi-currency accounts, and it exists because holding a balance labelled EUR is not the same as that money remaining in euros the whole time. Operators that advertise currency choice, including gaming platforms such as Nine Casino, often display a balance in your chosen currency while settling with payment processors, game suppliers and acquiring banks in a different base currency. Every one of those internal hops can carry a spread, and spreads do not have to be disclosed the way fees do.
Where the Money Actually Goes
There are usually four separate layers between your bank and your balance, and each has its own pricing. The cost is almost never in one place, which is exactly why it is hard to see.
| Layer | Typical charge | Whether it appears as a fee |
|---|---|---|
| Your bank or card issuer foreign transaction fee | Commonly around 2 to 3 per cent on non-domestic transactions | Usually disclosed on your statement |
| Card scheme conversion (Visa or Mastercard daily rate) | Small spread over interbank, published daily by the scheme | Rarely itemised |
| Payment processor or acquirer conversion | Often 1 to 3 per cent embedded in the rate applied | No; it is built into the rate |
| Platform internal conversion between display currency and base currency | Variable, frequently the largest single component | No; the balance simply reads lower |
| Dynamic currency conversion, if offered and accepted | Commonly 3 to 8 per cent, occasionally higher | Presented as a convenience, not a charge |
The pattern to notice is that the two largest costs are the two that appear as rates rather than fees. A platform can truthfully advertise zero deposit fees and zero withdrawal fees while earning several per cent on the same transaction through the exchange rate it applies.
The Only Number That Tells You the Truth
Ignore the fee schedule and measure the spread instead. Take the mid-market rate at the moment of the transaction, compare it with the rate you actually received, and express the difference as a percentage. The European Central Bank publishes euro foreign exchange reference rates each business day in the afternoon, and those are the cleanest free benchmark available for euro pairs.
The calculation is one line: divide the amount you actually received by the amount you would have received at the mid-market rate, subtract from one, and multiply by 100. Run it on both the deposit and the withdrawal, because operators frequently price the two legs differently, applying a modest spread inbound and a much wider one outbound where you are less likely to check.
Apply the same discipline to time. Weekend and out-of-hours conversions carry a wider spread at most providers because the underlying market is closed, so a Sunday withdrawal can cost noticeably more than the identical transaction on Tuesday morning. If nothing forces you to move money at the weekend, do not.
What European Law Requires To Be Disclosed
The transparency rules improved substantially and most people are unaware of them. Regulation (EU) 2019/518, which amended Regulation (EC) 924/2009, requires payment service providers to express currency conversion charges as a total percentage markup over the latest available euro reference rate published by the European Central Bank. It also brought card-based dynamic currency conversion into scope, requiring the markup to be shown before you accept it, and equalised the price of cross-border euro payments with equivalent domestic payments.
Separately, the second Payment Services Directive requires that the exchange rate or reference rate to be applied is made available to you before a payment transaction is executed, along with the charges. Regulation (EU) 260/2012 prohibits IBAN discrimination, meaning a business established in the single euro payments area cannot refuse your euro account simply because the IBAN was issued in another member state, a rule that fintech customers still have to invoke regularly.
Two limits are worth understanding. These rules bind regulated payment service providers, not every commercial party in the chain, so a gaming operator converting internally between its display currency and its settlement currency is not necessarily disclosing under the same regime. And enforcement is national, which means the practical remedy runs through the competent authority in the provider home member state rather than through a single European body.
Why Gaming and Betting Wallets Are a Special Case
Balances on gambling and gaming platforms behave differently from balances at a bank, in ways that matter more than the exchange rate.
- The wagering currency may not be the account currency. Some game suppliers settle in a single base currency, so stakes and wins on individual titles, including popular megaways slots, can be converted twice without any visible conversion event.
- Bonus terms are usually denominated in one currency and converted for other users, which can shift minimum deposit thresholds and wagering requirements by a few per cent against you.
- Pending withdrawal periods create exchange rate exposure. If a withdrawal sits pending for several days and the rate is struck at completion rather than at request, you carry the market risk without being told.
- Verification holds compound the problem. Anti-money-laundering source-of-funds checks under the European AML framework can extend a withdrawal by days or weeks, lengthening that exposure.
- Funds held with an e-money institution are not bank deposits. They are safeguarded rather than covered by a deposit guarantee scheme, so the protection if the institution fails is a different and generally slower mechanism.
That last point is the one most worth internalising. The deposit guarantee that covers 100,000 euros at a licensed bank does not extend to e-money balances, and it certainly does not extend to a balance held on a gaming operator ledger. A multi-currency wallet is a convenience product, not a savings account, and the sensible practice is to keep working balances small and move winnings out promptly.
What Recourse You Actually Have
If a conversion looks wrong, the order of escalation matters. Start with a written complaint to the provider citing the specific transaction, the mid-market rate at the time, and the rate applied, and ask them to state the markup as a percentage over the reference rate. Providers subject to Regulation 2019/518 are obliged to be able to answer that question.
Card chargebacks are the next step, but they are scheme rules rather than statutory rights, and the grounds are narrow: goods or services not provided, an unauthorised transaction, or a processing error. A dispute about an unfavourable but disclosed exchange rate is generally not a valid chargeback ground. It is also worth remembering that in Great Britain, gambling with credit cards has been prohibited since 2020, which removes an avenue of consumer credit protection that applies in other purchase contexts. Before you assume you have been charged anything improper, confirm whether the loss came from a fee, a spread, or a rate that simply moved.
A Five Minute Audit
Run this once against your own accounts and you will know precisely what you are paying:
- Pick one recent deposit and one recent withdrawal in the same account.
- Look up the ECB euro reference rate published for each of those dates, or the card scheme rate if the transaction went through a card.
- Calculate the percentage difference between the mid-market amount and the amount that actually moved, for each leg separately.
- Add your bank or issuer foreign transaction fee from your statement to whichever leg it applied to.
- Compare the total against a like-for-like transfer through a regulated payment institution quoting the mid-market rate plus an explicit fee.
- Repeat once on a weekday morning and once at a weekend to see how much the timing alone costs you.
Frequently Asked Questions
Why did I lose money if I never converted currencies?
Because a balance displayed in euros is not necessarily held in euros. Platforms often settle with processors, acquirers and game suppliers in a base currency, converting in and out behind the interface. Those internal conversions carry spreads that never appear as fees. The only way to detect them is to compare the amount that left your bank with the amount that arrived, measured against the mid-market rate on both dates.
What is dynamic currency conversion and should I ever accept it?
It is the offer to charge you in your home currency rather than the merchant currency, made at a terminal, cash machine or checkout. The convenience is real and the cost usually is not worth it, since markups commonly run from about 3 to 8 per cent. Under EU rules the markup over the ECB reference rate must be shown before you accept. Declining and letting your own issuer convert is almost always cheaper.
Are my funds protected in a multi-currency wallet?
Not in the way bank deposits are. Balances at an e-money or payment institution are safeguarded in segregated accounts rather than covered by a deposit guarantee scheme, and balances held on a gaming operator ledger are usually just a contractual obligation. If the firm fails, recovery depends on how well the funds were segregated and on insolvency proceedings, not on a guarantee paying out within a set period.
Which is cheaper, holding one currency or several?
Holding a single currency you actually receive and spend is generally cheapest, because each additional currency creates another opportunity to be converted at someone else spread. Multiple balances make sense when you genuinely earn and spend in more than one currency and can hold each until it is needed. They make little sense when you merely want to avoid seeing a conversion, since avoiding the display does not avoid the cost.
Do I owe tax on currency gains in a personal account?
It depends entirely on your jurisdiction, and the rules differ sharply. In the United Kingdom, for example, foreign currency bank accounts held by individuals were removed from capital gains tax charge from April 2012, while other European jurisdictions treat currency gains differently and some tax them as ordinary income. Check your national rules rather than assuming, particularly if you move significant sums between currencies.
The Bottom Line
Do the audit on one deposit and one withdrawal before you change anything else. Most people discover the total cost sits somewhere between 2 and 6 per cent per round trip, and that nearly all of it is in the rate rather than the fee schedule. Once you know your real number, the fix is usually simple: hold the currency you are actually paid in, convert once through a provider that quotes the mid-market rate plus a stated fee, avoid weekend conversions, and never accept dynamic currency conversion. For related reading, our guide on Steps to Launch Your Online Game on Multiple Websites covers the operator side of the same payment plumbing, and the Legal Advice archive collects further consumer guidance.
This article is general information about payment and currency conversion practices and is not financial, tax or legal advice; consult a qualified professional about your own circumstances.
