Skip to content
Epitychia
III · Reach

Cross-Border Payments &
Interchange Optimization.

We are your cross-border payment partner. Multi-currency processing, regional acquirer architecture, FX strategy, and interchange optimization — delivered as your processor, not as a memo telling someone else how to do it.

Cross-border payments are where margin quietly evaporates. The fees are real but unfamiliar: cross-border interchange, international scheme assessments, FX spreads, regional decline rates, chargeback rules that vary by country. Most platforms over-pay by 60–150 basis points without knowing the levers exist. We pull the receipts.

Engagement types

Cross-border audit

A 4–6 week engagement that maps your current cross-border cost structure transaction by transaction. We classify each fee, identify recoverable margin, and produce an executable optimization roadmap with expected basis-point impact for each lever.

Multi-acquirer rollout

Standing up regional acquiring relationships and the routing architecture that matches them. We run the acquirer RFPs, negotiate the regional contracts, design the routing logic, and oversee implementation through go-live and traffic ramp.

FX strategy

Choosing between processor-managed FX, multi-currency settlement, in-house FX (with a bank or non-bank counterparty), or hybrid models. The right answer depends on volume distribution, currency mix, and treasury appetite. We build the model, take the meetings, and document the decision.

Interchange optimization, in detail

Interchange is not a single rate. Visa publishes hundreds of categories; Mastercard publishes hundreds more. The category that applies to a transaction is determined by:

  • The card type (consumer, commercial, prepaid, debit) and its issuing country.
  • The merchant's MCC and acquirer relationship.
  • The data submitted with the transaction (Level 2 / Level 3 enrichment, line-item detail).
  • Authentication and tokenization posture (3DS, network tokens, NFC).
  • Authorization vs capture timing, partial authorizations, refund handling.

Each of these is a knob. A diligent optimization moves multiple knobs at once and measures basis-point impact at the qualified-rate level. We have moved 30 to 80 basis points on B2B card volume and 10 to 35 on consumer card volume in our most recent engagements.

Multi-acquirer architecture

The classic question: should we route every transaction through one acquirer, or distribute across several? At sufficient scale, multi-acquirer wins on three axes — lower cross-border interchange, higher approval rates (regional issuers are more comfortable with regional acquirers), and stronger negotiating leverage. The implementation cost is real but bounded.

FX margin — the larger lever

For most cross-border merchants, FX margin is a bigger line item than card processing. A 2% FX spread on $100M annual cross-border volume is $2M. The same business obsessing over a 10 bps interchange improvement is leaving an order of magnitude more on the table in FX. We size both, and we tell you which one to attack first.

Cross-border FAQ

Common questions, direct answers.

What is interchange optimization?
Interchange is the fee paid by an acquirer to the card-issuing bank on every transaction. It varies by card type, transaction context, and the data you submit. Interchange optimization is the practice of structuring transactions to qualify for lower-cost interchange categories: data-element enrichment (Level 2 / Level 3), MCC strategy, network tokenization, AVS posture, soft descriptors, and processor configuration. On commercial card volume, it can recover 30–80 basis points.
How does cross-border interchange differ from domestic?
Cross-border transactions carry an additional cross-border interchange component plus international scheme assessment fees. The "cross-border" classification is determined by the country of the issuer relative to the acquirer — not the cardholder's billing address or the merchant's headquarters. Strategically locating your acquirer (or maintaining multiple regional acquirers) can reclassify a meaningful portion of volume as domestic. The decision is more nuanced than it sounds.
Should we use a single global acquirer or multi-acquirer architecture?
For volumes above roughly $50M annually with meaningful international exposure, multi-acquirer architecture almost always pays back. The model: domestic acquirer in each major region (US, EU, UK, APAC), with intelligent routing at the gateway. Approval rates rise, cross-border interchange falls. Below that threshold, single-acquirer simplicity usually wins. We architect and operate both models depending on your volume and geographic mix.
What about FX margin?
FX margin is the spread between the wholesale rate and the rate at which the processor converts. Generic processors typically charge 1–3% on top of mid-market. For high-volume cross-border merchants, FX optimization (multi-currency settlement, in-house FX, or hybrid structures) typically saves more than card processing optimization alone. We deliver both and prioritize the larger lever for your actual currency mix.
Engagement

Schedule a strategy call.

Tell us about your stack. We'll show you where the margin is — at no cost, and with no obligation.

Book the call
30 minutes · No deck · No filler