Geo routing is a payment routing method that picks the acquirer, processor or payment method for each transaction by geography, usually the card's issuing country, the customer's location or the currency, so that payments run domestically wherever possible. The routing layer reads the card's BIN, looks up the issuing country and applies rules such as sending EEA cards to one acquirer and UK cards to another. Domestic traffic is approved more often and avoids network cross-border assessment fees; for €10 million of French card volume, a two-point approval uplift equals €200,000 a year. Each extra acquirer adds a contract, a settlement account and reserves, and an acquirer can only acquire where it holds or passports authorisation.
What is geo routing for
Issuers treat foreign merchants with more suspicion. A French card used at a merchant acquired in the United States is a cross-border transaction to the issuer, and approval rates on cross-border card-not-present traffic are typically several percentage points lower than on domestic traffic. The card networks also charge cross-border assessment fees on top of interchange. Routing that same French card to an acquirer licensed in France or the EEA turns it into a domestic or intra-regional payment.
For a merchant with €10 million of annual volume from French cardholders, a two-point approval uplift is €200,000 of additional sales a year, before fee savings.
How does geographic payment routing work
- The routing layer reads the card's BIN, now eight digits for most new ranges, and looks up the issuing country in a BIN table.
- It may also consider the IP address, billing country and transaction currency.
- A routing rules engine applies rules such as "EEA cards to acquirer A, UK cards to acquirer B, US cards to acquirer C".
- If the chosen acquirer is unavailable, failover or smart routing picks the next option.
Currency often travels with geography. Charging a Brazilian customer in reais through a Brazilian acquirer avoids the foreign transaction fee on the cardholder's side, a separate choice described under currency routing.
Payment routing by country: local rules
Some markets make geo routing close to mandatory. In France, co-badged Cartes Bancaires cards are cheaper to route over the domestic scheme when the acquirer supports it. India's payment data storage rules require payment data to be stored in India. Brazil, Mexico and parts of Asia have local card brands and installment conventions that only local acquirers support fully.
Costs and limits
Each extra acquirer means another contract, another settlement account to reconcile, separate reserve requirements and often a local legal entity for the merchant. Geo routing pays off only above a certain volume per country, which is why many merchants reach it through a PSP or orchestration platform that already holds local acquiring connections.
Geo routing and licensing
The underlying constraint is licensing: an acquirer can only acquire where it holds, or passports, the right authorisation. When a buyer values a payment institution, the list of countries where it can acquire locally is often a bigger driver than its current volume, because it defines which merchants' geo routing it can serve.
See also: Risk-based routing.