Maestro is Mastercard's debit brand, and its phaseout has been proceeding in stages worldwide. In particular, it has never established itself as a mainstream debit method in the United States and effectively has no real base as an online payment method, so this page is an informational document intended to explain the current status and point to alternative methods, rather than to guide a new integration.
Mastercard has been pursuing a policy of converting the Maestro brand into Debit Mastercard, and even in Europe, its core market, new issuance stopped as of July 2023. The US debit market was formed from the outset around a combination of Visa Debit, Debit Mastercard, and domestic PIN debit networks, so Maestro never developed a real usage base there, and as of 2026 it is unrealistic to expect Maestro transactions in online payments aimed at US consumers.
As a result, there is little practical benefit for a Korean merchant preparing to enter the US market in adding Maestro USA to a new-integration list. US debit demand is absorbed by standard card payments (debit products from Visa, Mastercard, and Discover) and by wallet payments such as Apple Pay and Google Pay, so it's best to design around that combination as the baseline, and to use this document as reference material for understanding the legacy brand.
In theory, a Maestro transaction follows the same process as a standard card payment (entering card details, issuer approval), but because there is effectively no issuance base in the US, the likelihood of an actual transaction occurring is very low. If a US debit card payment is accepted, Hecto Financial receives the funds in USD, then converts and pays them out in the contracted currency, and 3-D Secure may apply for online authentication depending on the issuer's policy.
From Hecto Financial's standpoint, Maestro USA is not a method we recommend newly integrating. General acceptance of US debit and credit cards combined with digital wallets is the practical alternative, and even if you need to accept residual Maestro cards in other markets such as Europe, that would require separate confirmation based on those markets. Specific alternative designs can be discussed with the sales team.
※ This section describes general support procedures and does not guarantee actual integration eligibility for any specific merchant. Please consult with us to confirm the exact scope of support and applicable fees.
Confirm contract eligibility for businesses registered in Korea
The integration method and priority vary depending on your online sales channel mix, such as owned storefronts, open marketplaces, and mobile apps
Advance confirmation is needed on whether your business falls under a restricted category per the Maestro USA operator's merchant policy
Confirm compliance with US payment and foreign exchange regulations, including federal and state consumer protection rules and card network rules (see official sources below)
The merchant settlement structure applies the same way regardless of card brand. Hecto Financial receives funds that have completed approval and acquiring in USD, then converts and pays them out in whichever of USD, KRW, or JPY was selected under the contract. However, given that Maestro's own transaction volume in the US is effectively nonexistent, it is more practical to negotiate settlement terms based on the alternative methods (standard cards and wallets).
Hecto Financial's team will work with you to review the right combination of payment methods for the US market.
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