Country-based routing
Optimise transaction success and minimise costs by directing payments to specific acquirers based on the cardholder's country. Cardflo's country-based routing ensures that transactions are processed efficiently through the most suitable financial institutions in each region, reducing cross-border processing fees and improving authorisation rates.
- Category
- Routing
- Capabilities
- 10
- Available on
- All plans
The overview
Country-based routing refers to the systematic direction of payment transactions to specific acquirers or processors based on the geographic origin of the cardholder's account.
In the payment orchestration layer, this logic typically relies on the Bank Identification Number or the billing address provided during the checkout process. By identifying the issuing country, a payment service provider or merchant can ensure that domestic transactions remain within local networks.
This avoids the complexities and higher costs associated with cross-border processing, where international scheme fees and currency conversion spreads often apply. The mechanism is fundamental for global merchants who maintain multiple Merchant Identification Numbers across different regions.
It allows for the alignment of transactions with the most appropriate financial institutions, which can lead to higher authorisation rates due to the familiarity of the local issuer with the domestic acquirer's traffic patterns.
How it works
Data extraction and BIN analysis
When a customer initiates a payment, the system captures the primary account number to identify the Bank Identification Number. This prefix is cross-referenced against global databases to determine the issuing bank's country.
The routing engine uses this data point as the primary trigger for the subsequent logic.
Rule evaluation and matching
The orchestration engine evaluates the transaction against pre-defined geographic rules. These rules categorise the payment into specific regions, such as the European Economic Area, North America, or Asia-Pacific.
The system determines which active acquirer connection is configured to handle traffic originating from that particular territory.
Dynamic path selection
Based on the geographic match, the transaction is directed to the most suitable gateway or acquirer.
If a merchant has a local MID in the cardholder's country, the routing engine prioritises that path to ensure the transaction is processed as a domestic rather than an international payment.
Authorisation and response handling
The chosen acquirer submits the authorisation request to the issuing bank via the relevant card scheme. The response, whether an approval or a decline reason, is relayed back through the gateway.
If a geographic-specific failure occurs, the system may log the event for future routing adjustments.
Why it matters
Reduction in processing overheads
Cross-border transactions incur significantly higher costs than domestic ones, primarily due to elevated interchange rates and international scheme fees. By routing payments to an acquirer located in the same region as the issuer, merchants can often access domestic interchange caps and avoid currency conversion markups.
This practice is essential for maintaining margins in high-volume, low-ticket international retail environments where small basis point differences impact profitability.
Improved authorisation success rates
Issuing banks often apply stricter fraud filters to international transactions, leading to higher rates of false positives and soft declines. Domestic transactions are generally perceived as lower risk by issuer risk engines and are less likely to trigger challenges under Strong Customer Authentication requirements.
Directing traffic to a local acquirer increases the likelihood of a successful authorisation, as the transaction behaves according to standard domestic patterns.
Use cases
Multinational e-commerce retail
A retailer selling across Europe and North America uses country-based routing to ensure German cardholders are processed by an EU-based acquirer, while US customers are routed to a domestic US processor to minimise decline rates.
SaaS subscription providers
A software company with a global subscriber base routes recurring payments to regional hubs to avoid international transaction fees on monthly renewals, ensuring consistent revenue collection and reducing involuntary churn caused by bank blocks.
Travel and hospitality platforms
Online travel agents route high-value bookings to acquirers in the traveller's home country to reduce the frequency of automated fraud flags that often occur when large sums are moved across borders.
By the numbers
Typical reduction in processing costs when moving from inter-regional to domestic interchange rates, depending on the specific card schemes and regional caps in place.
An observed increase in successful authorisations when transactions are processed locally, as domestic issuers are less likely to flag the payments for potential fraud.
The additional time required for a routing engine to perform a BIN lookup and evaluate geographic rules, which is generally negligible in the context of a total authorisation cycle.
Related terms
Talk to our team about a live rollout on your acquiring stack.
What you get with Country-based routing
- Identification of cardholder issuing country via real-time Bank Identification Number analysis during the authorisation phase.
- Categorisation of transactions into regional buckets to facilitate targeted routing for domestic processing advantages.
- Prioritisation of Merchant Identification Numbers based on their geographic location to bypass international scheme fees.
- Mitigation of currency conversion costs by aligning the processing currency with the cardholder's domestic region.
- Reduction of international fraud flags by presenting transactions as domestic traffic to the issuing bank.
- Compliance with regional data localisation requirements and specific financial regulations across different jurisdictions and territories.
- Dynamic redirection to secondary acquirers if a primary regional connection experiences performance degradation or downtime.
- Customisable rule sets for specific high-value markets to prioritise acquirers with the highest regional approval rates.
- Support for local payment methods and domestic schemes that require specific geographic routing for processing.
- Integration with payment orchestration logic to balance volume across multiple global acquirer accounts efficiently.
A short scoping call, then a written plan for your MIDs.
Questions about Country-based routing
How does country-based routing differ from simple currency-based routing?
Currency-based routing directs payments based on the currency requested by the customer, whereas country-based routing uses the issuer's location derived from the BIN. Relying solely on currency can be misleading, as a customer may pay in EUR using a UK-issued card.
Country-based routing ensures the transaction is handled by an acquirer that has the most favourable relationship with that specific issuing region, addressing both the settlement cost and the authorisation probability rather than just the denomination of the funds.
What is the impact of country-based routing on interchange fees?
Interchange fees are often capped by regional regulations, such as the caps within the European Economic Area. When a transaction is processed cross-border, these caps may not apply, or the merchant may be subject to 'inter-regional' interchange rates which are significantly higher.
By using country-based routing to keep the transaction domestic, merchants can qualify for lower intra-regional or domestic interchange rates, directly reducing the total cost of acceptance for each successful transaction.
Can country-based routing help with Strong Customer Authentication (SCA) compliance?
Yes, it can. SCA requirements under PSD2 are specific to the EEA.
Routing transactions through an EEA-based acquirer when the issuer is also in the EEA ensures that the 3-D Secure protocols are handled according to local standards.
If an EEA transaction is routed to a non-EEA acquirer, it might be classified as 'out of scope' or 'one-leg out', which can lead to complications in how the issuer applies risk-based authentication and potentially result in higher decline rates.
Does a merchant need multiple legal entities to use country-based routing?
Typically, to get the full benefit of domestic processing, a merchant needs a local legal entity and a local MID in the target region. However, some global PSPs allow for regional routing without separate entities, though the cost savings may be less pronounced.
The most efficient setup involves having an acquirer in the same jurisdiction as the card issuer, which generally requires a local presence to satisfy KYB and regulatory requirements of the acquirer.
How does BIN lookup accuracy affect the routing process?
The effectiveness of country-based routing is highly dependent on the quality of the BIN database. Since banks regularly launch new BIN ranges, the database must be updated frequently.
Inaccurate BIN data can lead to misrouting, where a domestic transaction is treated as international or vice versa, resulting in unnecessary fees or declines. Most orchestration platforms use enterprise-grade BIN intelligence to ensure high accuracy in identifying the issuer's country and card type.
Can routing rules be set for specific country groups like the EEA?
Yes, routing engines allow for the grouping of countries into logical territories.
For example, all transactions from issuers within the European Economic Area can be treated as a single group and routed to a primary European acquirer to take advantage of harmonised regulations and interchange caps.
Similar groups can be created for regions like LATAM or APAC to simplify the management of routing logic across a large number of individual countries.
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