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🇺🇸 United States Pay by Bank (US) Payment Integration Guide

Pay by Bank is a US account-based payment method in which the consumer directly links and authorizes their bank account to send funds account-to-account (A2A). It is a method still in its early growth stage, built on the account-linking technology of open-banking providers such as Plaid and the spread of the FedNow and RTP real-time payment rails, so it's important to set expectations realistically when considering it.

When to consider Pay by Bank in the United States

US payment infrastructure is resolving the speed limitations of account-based payments as the Federal Reserve's FedNow (launched 2023) and The Clearing House's RTP expand real-time payment rails. Pay by Bank is a payment form built on these rails that combines open-banking-style account linking and balance verification; it's drawing attention because it bypasses card networks, giving it a different fee structure, but consumer awareness is still at an early stage.

It's worth considering first for high-value transactions where card fee burden is significant, and for fintech, investment, and rewards services where account-based funding feels natural. Rather than positioning it as a primary payment method, it's more realistic to place it alongside cards and wallets as a cost-saving option and adjust its placement based on observed usage trends.

Open banking (Plaid and others)
Linking technology
FedNow / RTP / ACH
Underlying rails
Bank login and transfer authorization
Online payment flow
Early growth
Market stage

Basic flow of United States Pay by Bank (US) payments

When a consumer selects their bank on the payment screen and links their account through online banking authentication, the balance is checked and per-transaction transfer approval follows. The transfer is processed either in real time or on an ACH schedule, depending on the bank and rail combination, and once received, Hecto Financial takes the funds in USD, converts them, and pays out in the currency set in the contract. Because the bank authentication itself serves as identity verification, this is a different authentication scheme from card-based 3-D Secure.

Hecto Financial's Pay by Bank (US) coverage

Through Hecto Financial, businesses in Korea can also explore accepting US A2A payments, but Pay by Bank is a method still in its early growth stage where actual usability varies depending on provider and bank coverage. It's recommended to specifically confirm the range of supported banks, the processing rail, and expected usage rates with the sales team before contracting.

※ 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.

What to check before merchant application and integration

  • 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 Pay by Bank (US) 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)

Settlement currency, settlement cycle, and refund conditions

Once USD originating from the consumer's account is received by Hecto Financial, it is converted and settled in whichever of USD, KRW, or JPY was selected under the contract. Transactions routed over real-time rails tend to have funds confirmed quickly, but the settlement cycle is a separate contract term, and since refunds are processed as a reverse transfer back to the original account, the process differs from card refunds and should be reflected in your operations manual.

United States Pay by Bank (US) Payment FAQ

QHow widely is Pay by Bank used in the United States?
It's still at an early growth stage. The FedNow and RTP rails and open-banking connection technology have laid the groundwork for expansion, but consumer awareness remains low compared to cards and wallets. It's realistic to position it as a supplementary rather than primary method.
QHow is it different from an ACH withdrawal?
ACH Direct Debit is a recurring-billing model where the merchant initiates the withdrawal based on prior consent, while Pay by Bank has the consumer directly authorize each transfer through bank authentication. A relatively lower potential for unauthorized-transaction disputes is cited as an advantage of Pay by Bank.
QHow is the settlement currency chosen?
Hecto Financial converts funds received in USD from US consumers and pays them out in whichever of USD, KRW, or JPY was designated in the contract. It's a structure where you choose the settlement currency among three options, with the cycle set by the contract terms.
QHow does refund processing differ from cards?
Rather than a reversal of the original transaction as with cards, it's processed as a reverse transfer to the consumer's account. Because an account verification step can be involved, processing time may vary, so it's a good idea to prepare separate messaging about expected refund turnaround.

Official sources on United States payments

  • 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.

Inquire about offering Pay by Bank (US) payments in the United States

Hecto Financial's team will work with you to review the right combination of payment methods for the US market.

Contact us