US debit payments have a distinct regulatory pillar: the Federal Reserve's Regulation II (the Durbin Amendment). Issuing banks must allow debit card transactions to be routed over at least two unaffiliated networks, and as of July 2023 it became clear that this requirement also applies to card-not-present transactions such as those made online. NYCE is one of the PIN debit networks used as an alternative path to the major card networks within this multi-routing system.

In other words, NYCE is not a payment option that a merchant presents to consumers, but back-end infrastructure that the acquiring and routing layer uses to optimize transaction cost and approval conditions. The real task for a merchant in Korea targeting US consumers is not to 'integrate NYCE,' but to design a combination of US debit and credit card acceptance with wallet payments — routing is handled automatically on top of that.

When a US debit card payment occurs online, the acquiring side selects whichever network among the multiple paths guaranteed by Regulation II best fits the conditions and routes the transaction, and NYCE can relay the issuing bank's approval as one of those alternative paths. Which network was used is not shown on the consumer's screen, and Hecto Financial receives the approved funds in USD, then converts and pays them out in the contracted currency.

NYCE is unlikely to exist as a consumer-facing payment method that Hecto Financial and a merchant would set up under an individual contract. Accepting US debit demand is, in practice, done through standard card payment integration, and whether a transaction passes through NYCE is a matter for the routing layer. Overall US card acceptance design can be discussed with the sales team.

• Country of business registration

  Confirm contract eligibility for businesses registered in Korea

• Sales channels

  The integration method and priority vary depending on your online sales channel mix, such as owned storefronts, open marketplaces, and mobile apps

• Product categories handled

  Advance confirmation is needed on whether your business falls under a restricted category per the NYCE operator's merchant policy

• Compliance with local regulations

  Confirm compliance with US payment and foreign exchange regulations, including federal and state consumer protection rules and card network rules (see official sources below)

Regardless of the routing path, merchant settlement converges on a single structure. Hecto Financial receives the USD funds paid by US consumers, converts them, and pays out in whichever of the three currencies, USD, KRW, or JPY, was selected under the contract. Refunds and chargebacks are processed against the original card, and specific deadlines should be confirmed in the contract terms.

• Federal ReserveOfficial information on the US payment system and Electronic Fund Transfer Act (Regulation E). If this page's content differs from the actual regulations, the official source takes precedence.
• Consumer Financial Protection Bureau (CFPB)Official information from the federal oversight body for US consumer finance and payment disputes.