What Is Carte Bancaire?
CardCarte Bancaire (CB) is France's national card payment network, processing over 50% of all card transactions in the country. Nearly every French bank card is co-branded with CB alongside Visa or Mastercard, and routing transactions through the CB network typically costs merchants less than routing through international card networks.
How It Works
1. **Customer enters card details**: The French cardholder enters their CB/Visa or CB/Mastercard co-branded card number at checkout, or taps/inserts their card in-store. 2. **BIN identification**: The PSP or acquirer identifies the card as CB-eligible based on the card's BIN (Bank Identification Number) range. 3. **Network routing**: The transaction is routed through the Carte Bancaire network (rather than Visa or Mastercard) for domestic French transactions, taking advantage of lower interchange rates. 4. **3D Secure (online)**: For online transactions, the customer may be prompted to authenticate via 3D Secure, redirecting to their bank's verification page. 5. **Authorization**: The issuing bank authorizes (or declines) the transaction through the CB network. 6. **Settlement**: Funds are settled to the merchant's account, typically within 1-2 business days, at the CB interchange rate plus the acquirer's margin.
Key Details
Instant
~0.5-0.8% (lower than Visa/MC in France)
Standard card limits (set by issuing bank)
1 countries
Pros & Cons
- Lower interchange fees than Visa/Mastercard for domestic French transactions — CB routing can save merchants 0.1-0.3% per transaction, which is significant at scale.
- Universal coverage in France — virtually every French bank card is co-branded with CB, meaning almost all French card transactions are eligible for CB routing.
- Seamless customer experience — cardholders do not notice any difference between CB and Visa/Mastercard routing; the optimization is entirely on the merchant/processor side.
- Supported by all major PSPs (Stripe, Adyen, Checkout.com, Mollie), making it easy to enable CB routing without changing payment infrastructure.
- France only — Carte Bancaire routing is limited to domestic French transactions and does not apply to French cardholders purchasing from non-French acquirers (without CB support).
- Cost savings are marginal per transaction (0.1-0.3%) and only become significant at high volumes — small merchants may not notice the difference.
- Not all PSPs automatically route through CB — merchants may need to explicitly configure CB routing or ensure their acquirer supports it.
- CB-specific authentication and processing rules occasionally differ from Visa/Mastercard, which can add complexity to payment integration testing.
Use Cases
- Large e-commerce merchants with significant French revenue optimizing processing costs through CB routing versus Visa/Mastercard.
- French domestic retailers processing high volumes of in-store card transactions at the lowest possible interchange rates.
- International merchants selling into France who use PSPs like Stripe or Adyen with CB acquiring capability to reduce costs.
- Subscription businesses billing French customers monthly, where the per-transaction savings from CB routing compound over the subscription lifetime.
- Marketplace platforms with a French seller or buyer base where lower payment processing costs improve unit economics.
Carte Bancaire (commonly abbreviated as CB) is the dominant domestic card payment network in France. Established in 1984, it is operated by the Groupement des Cartes Bancaires CB, a consortium of French banks. With over 75 million cards in circulation and processing more than 15 billion transactions annually, CB handles the majority of card payments made within France. For merchants selling to French consumers, understanding Carte Bancaire is essential for optimizing payment costs and conversion rates.
## How Carte Bancaire Works
Nearly every debit and credit card issued by a French bank is co-branded with both Carte Bancaire and an international network — either Visa or Mastercard. This dual-branding means the card can be processed through either the CB domestic network or the international Visa/Mastercard network. When a French cardholder makes a purchase at a French merchant, the transaction can be routed through CB at domestic interchange rates, which are typically lower than Visa or Mastercard rates.
The routing decision is handled by the payment processor or acquirer. Smart routing — directing eligible transactions through the CB network when it is cheaper — can significantly reduce processing costs for merchants with high volumes of French card transactions. Most major PSPs that support Carte Bancaire offer this routing optimization automatically or as a configurable feature.
For the cardholder, the experience is identical regardless of which network processes the transaction. They insert, tap, or enter their card number as they would for any card payment. The CB vs. Visa/Mastercard routing distinction is entirely behind the scenes.
## Cost Advantages
The primary business case for Carte Bancaire support is cost. CB interchange fees for domestic French transactions are regulated and typically range from 0.2% to 0.3% for debit cards and up to 0.8% for credit cards. Visa and Mastercard interchange rates, while also regulated in the EU, can be higher for certain transaction types, and the scheme fees (assessments, network fees) charged by international networks add additional costs. By routing through CB, merchants can save 0.1% to 0.3% per transaction compared to Visa/Mastercard routing — which adds up to substantial savings at scale.
For a merchant processing millions of euros in French card transactions monthly, the savings from CB routing versus international network routing can amount to tens of thousands of euros annually. This is why payment optimization for the French market always includes CB routing as a priority.
## Online and In-Store
Carte Bancaire works for both in-store (POS) and online (e-commerce) transactions. In-store, the routing happens automatically at the terminal level. Online, the PSP or payment gateway identifies CB-eligible cards (typically by BIN range) and routes them through the CB network. The 3D Secure authentication flow for CB cards uses the same infrastructure as Visa and Mastercard (redirecting to the cardholder's bank for verification), so the customer experience is consistent.
## CB and International Transactions
Carte Bancaire is a domestic French network. When a French cardholder makes a purchase at a non-French merchant, the transaction is routed through Visa or Mastercard (the co-branded international network on the card). CB routing only applies to domestic French transactions — the merchant must be acquiring through a French acquirer or a PSP that supports CB routing in France.
For international merchants selling to French customers, supporting CB means having a payment processor that can acquire CB transactions in France. Stripe, Adyen, Checkout.com, and Mollie all support Carte Bancaire, allowing international merchants to benefit from lower interchange rates on French card transactions even if the merchant is not based in France.
## Market Significance
France is the second-largest e-commerce market in Europe (after the UK) and the third-largest card market in the EU. With over 75 million CB cards in circulation in a country of 67 million people, virtually every French consumer carries a CB card. Ignoring Carte Bancaire in a French payment strategy means paying higher processing costs on a large proportion of transactions. For any merchant with meaningful French revenue, enabling CB routing is one of the simplest cost optimizations available.
