A summary of what merchants in Korea should know when adopting PayPay, Japan's No. 1 QR payment service with over 65 million registered users. Covers what customer segment it can capture, how the payment and settlement flow works, and what terms to check before signing a contract.
Japan's e-commerce market is worth roughly 20 trillion yen a year, ranking among the top four in the world, and the cashless payment ratio has climbed to about 40% thanks to the government's cashless promotion policy. QR payment is at the forefront of this shift, and PayPay, with over 65 million registered users, is Japan's No. 1 QR payment service. It is operated by PayPay Corporation, part of the SoftBank / LY Corporation group, and since its 2018 launch has expanded its user base through large-scale point rebates, and is now used for everyday payments ranging from convenience stores to online shopping.
Merchants in Korea serving individual consumers in Japan online should consider prioritizing PayPay. Especially in categories with a high share of mobile purchases and average order values in the thousands to tens of thousands of yen — such as fashion, general goods, and K-content commerce — PayPay payment, which is completed with just app authentication and no card number entry, can be expected to reduce drop-off at checkout. Also check the comparison table below for other methods worth combining with it.
Japanese consumers pay in yen (JPY) by presenting a QR code or barcode in the PayPay app, or through app authentication at an online checkout, with the amount deducted from their app balance or a linked bank account or card. Hecto Financial receives this payment locally in JPY and, after currency conversion, settles with the merchant in Korea in one of the currencies selected under contract — USD, KRW, or JPY. Details of the integration method, such as online redirect or app invocation, need to be confirmed in the technical documentation.
Under a single contract with Hecto Financial, a company in Korea can consider accepting this payment method without establishing a local entity in Japan or contracting directly with PayPay. However, the final approval outcome and specific terms (settlement cycle, fees, settlement currency options) vary by business category and transaction volume, so consultation with the sales team is needed before signing a contract.
※ This section describes the general support process and does not guarantee integration availability for any specific merchant. Please confirm the exact scope of support and fees through consultation.
Confirm contract eligibility for businesses registered in Korea
The integration approach differs depending on whether sales are online only or also include offline stores in Japan
Check in advance whether your products fall under categories restricted by the PayPay operator's merchant policies
Confirm compliance with Japan's payment and foreign exchange regulations (see official sources below)
Hecto Financial receives PayPay transaction proceeds in the yen (JPY) that the consumer paid. After currency conversion, the merchant in Korea receives the funds in whichever of the three currencies — USD, KRW, or JPY — was specified under contract, with the settlement cycle and fee rate set according to the contract terms. When a refund occurs, both PayPay's own refund policy and Hecto Financial's operating standards apply, so confirm the refund window and processing deadline at the contract stage.
Hecto Financial's team will work with you to review the right combination of payment methods for the Japanese market.
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