What the network decides, and what it does not
The question comes up with every card application, and the honest answer is disappointing: between a Visa and a Mastercard issued by the same Belgian bank, the difference for you is close to nil. Neither the annual fee, nor the APR, nor the limit, nor the insurance comes from the network. They all come from the issuer, and the issuer is what you should compare.
I spent seven years in the disputes department of a Belgian issuer, and sorting contested transactions was never done by network. It was done by range and by insurance contract. Two holders, one with a Visa, the other with a Mastercard, from the same bank and the same range, landed in the same pile.
Who actually sets the annual fee, the APR and the limit?
The issuer, meaning the bank or the credit institution whose name appears on your statement. The network collects nothing from you.
The Visa and Mastercard business model rests on commissions charged to retailers and banks, not to cardholders. What you pay — the annual fee, the APR applied to a carried balance, the flat withdrawal charge — is decided entirely by the issuer, which has bought a licence to issue on the network.
The figure to remember: on the Belgian market, a credit card's annual fee ranges from EUR 0 to EUR 96 a year depending on the issuer and the range, and the APR from 9.50 % to 16.99 %. These gaps exist inside a single network. The Beobank Extra World Mastercard is at EUR 20 a year and 14.49 % APR; the BNP Paribas Fortis Visa Classic is at EUR 0 a year inside a package and 9.50 % APR. Two different networks, but the gap has nothing to do with them.
| What varies | Decided by | Range observed in Belgium |
|---|---|---|
| Annual fee | The issuer | EUR 0 to EUR 96 a year |
| APR on carried balance | The issuer | 9.50 % to 16.99 % |
| Exchange margin outside the euro | The issuer | 1 % to 2.5 % |
| Base conversion rate | The network | a few hundredths of a percent apart |
| Granted limit | The issuer, on file | EUR 750 to over EUR 10,000 |
| Travel insurance | The issuer, per range | contract specific to each bank |
Does the exchange commission depend on the network?
For the part that costs, no. A transaction outside the euro area is converted at a rate published daily by the network, then the issuer adds its own margin on top.
Visa and Mastercard conversion rates are within a few hundredths of a percent of each other, because both are derived from wholesale foreign exchange rates. On a EUR 200 payment in pounds sterling, the difference between the two networks is measured in cents.
The issuer's margin, by contrast, is measured in euros. At 2.5 % on the same payment it represents EUR 5. At 1 % it represents EUR 2. That is the only figure that genuinely moves, and it sits in your bank's pricing conditions, not in the network's documentation.
Does acceptance change anything in Belgium?
Practically nothing. Any Belgian terminal that takes one of the two networks takes the other, including at independent and neighbourhood retailers.
The difference, where it exists, plays out outside Europe. Some Asian and South American markets have a historical preference for one or the other, inherited from the local banking network, but the gap has narrowed year on year. On a typical trip from Belgium — euro area, United Kingdom, United States, North Africa, Turkey — the question does not arise.
It is, however, a genuine issue for American Express. Amex charges retailers a higher commission, and a non-negligible number of small Belgian businesses refuse it for that reason. An Amex alone in the wallet is a gamble; an Amex paired with a Visa or a Mastercard is not.

Does travel insurance come from the network or from the bank?
From the bank, and by range. This is the most frequent confusion, and the one that costs the most in disputes.
A KBC Mastercard Gold at EUR 72 a year and a Visa Gold from another Belgian issuer do not share the same insurance contract. They do not have the same indemnity ceilings, the same exclusions, or the same insurer. The word "Gold" designates a pricing range, not a level of cover standardised across banks.
What the brochure does not put forward: most Belgian cancellation policies only trigger if the trip was paid for with the card, often above a minimum percentage of the total amount. That was by far the leading ground for refusal I saw come through. A Gold in the wallet and a ticket settled by bank transfer, and there is no cover — whatever the network.
So when does the network actually matter?
Once, and only once: when you hold two cards. Taking them on two different networks is the only decision where the logo has concrete value.
A card blocked for suspected fraud abroad is unblocked within hours at best, within days when the file goes through a disputes department. In the meantime, you have no means of payment. A second card, on the other network and preferably from another issuer, covers both that block and the occasional refused acceptance.
It is also the only redundancy that pays for itself. Two cards at EUR 20 a year cost EUR 40; one hotel night paid in cash because the deposit did not go through costs more.
What to look at instead
Take the list in order: the annual fee in euros, the APR applied to a carried balance, the cost of a EUR 100 withdrawal at a cash machine, your issuer's exchange margin, and the limit the bank actually grants you. Those five figures decide what the card will cost you over twelve months. The network decides none of them.
The ranking of Belgian credit cards sets out these amounts for eight cards distributed in Belgium, and the comparison tool places them side by side. If you are still unsure about the profile, the choosing a card page sorts by situation rather than by product.
Sources — rates and conditions recorded on 17 August 2026 from the published rate pages of Beobank, ING Belgium, KBC, BNP Paribas Fortis and Argenta, and from the reference Belgian comparison sites. Central Individual Credit Register: National Bank of Belgium. Recourse for a dispute unresolved with the issuer: Ombudsfin. No link in this article is remunerated.
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Delphine a passé sept ans au service litiges et rétrofacturation d’un émetteur de cartes belge, à Liège, entre 2015 et 2022 : le bureau où atterrissent les contestations de porteurs, les retraits facturés deux fois et les cautions d’hôtel qui restent bloquées trois semaines. Elle a donc lu, ligne par ligne, plusieurs milliers de relevés de cartes belges, et elle sait où se logent les montants que personne ne regarde avant de signer. Depuis 2023 elle relève chaque trimestre les tarifs publiés des émetteurs belges et tient le tableau de coûts qui sert de base à ce site. Ce qui l’agace : les brochures qui annoncent une carte à 0 € sans mentionner que le premier retrait au distributeur coûte 5 € fixes plus 1,8 % de commission, et que les intérêts courent dès le jour du retrait.
