--- title: "Japan card issuer, acquirer, and processor split" aliases: - "japan-card-issuer-acquirer-processor-split" - "Japan card acquiring issuer processor map" - "カード issuer acquirer processor Japan" domain: "payments" created: 2026-05-22 last_updated: 2026-07-30 last_tended: 2026-07-30 review_by: 2026-11-22 confidence: likely tags: [payments, credit-card, acquiring, issuer, processor, PSP, security] status: active sources: - "https://www.meti.go.jp/policy/economy/consumer/credit/kappuhanbaihoatobaraibunyanogaiyofaq.html" - "https://www.meti.go.jp/policy/economy/consumer/credit/115tourokujigyousyaitiran.html" - "https://www.meti.go.jp/press/2024/03/20250305002/20250305002.html" - "https://www.j-credit.or.jp/security/document/index.html" - "https://www.j-credit.or.jp/security/pdf/Creditcardsecurityguidelines_5.0_revisionpoint.pdf" - "https://www.j-credit.or.jp/security/pdf/Creditcardsecurityguidelines_6.0_published.pdf" - "https://www.global.jcb/ja/about-us/business-area/brand/" - "https://www.jcb.co.jp/merchant/regulation/" - "https://www.fsa.go.jp/menkyo/menkyo.html" - "https://paymentsjapan.or.jp/category/publications/" --- # Japan card issuer, acquirer, and processor split ## Overview Japan card payments is split into at least five roles: issuer, international / domestic brand, acquirer, card-number contract / merchant-contracting operator, and processor / PSP. A single group can hold several roles, but FinWiki does not flatten them into "credit-card company." Use this page with [[payments/card-acquiring-japan-stack|Japan card acquiring stack]], [[payments/japan-card-security-authentication-controls|card security and authentication controls]], [[payments/credit-purchase-card-operators-japan-index|credit purchase and card operator registry]], [[payments/psp-merchant-settlement-risk|PSP settlement risk]], [[payments/cashless-jp-landscape|cashless landscape]], [[card-issuers/jcb|JCB]], [[card-issuers/smbc-card|SMBC Card]], and [[card-issuers/mufg-nicos|MUFG NICOS]]. ## Role Map | Role | What it controls | Typical JapanFG anchors | |---|---|---| | Issuer | Cardholder screening, credit limit, billing, revolving / installment receivable, fraud monitoring. | [[card-issuers/smbc-card|SMBC Card]], [[card-issuers/rakuten-card|Rakuten Card]], [[card-issuers/paypay-card|PayPay Card]], [[card-issuers/aeon-financial-service|AEON Financial Service]] | | Brand / scheme | Network rules, brand acceptance, international routing, card-product rules. | [[card-issuers/jcb|JCB]], Visa / Mastercard / AMEX / Diners partners. | | Acquirer | Merchant underwriting, merchant contract, settlement, chargeback / dispute routing. | [[card-issuers/jcb|JCB]], [[card-issuers/mufg-nicos|MUFG NICOS]], [[card-issuers/smbc-card|SMBC Card]], [[payment-firms/gmo-payment-gateway|GMO Payment Gateway]] | | PSP / gateway | Technical acceptance, tokenization, payment page, fraud filters, reconciliation file. | [[payment-firms/gmo-payment-gateway|GMO Payment Gateway]], [[payment-firms/sb-payment-service|SB Payment Service]], [[payment-firms/gmo-epsilon|GMO Epsilon]], [[payment-firms/dg-financial-technology|DGFT]] | | Merchant | Accepts card payments, protects cardholder data, handles shipping / refund / dispute evidence. | Retail / EC operators under [[retail/INDEX|retail INDEX]] and platform cases such as [[business/gmo-internet-group|GMO Internet Group]]. | ## Legal / Registry Boundary The following table is scoped to public primary sources (meti.go.jp, j-credit.or.jp). It restates licence / structure / product boundaries from those materials and does not invent market share, ranking, or unstated numerical claims. ^[source:meti.go.jp; j-credit.or.jp] | Question | Route | |---|---| | Is the entity an installment-sales / credit-purchase operator? | Check METI Installment Sales Act registration lists and [[payments/credit-purchase-card-operators-japan-index|registry-control page]]. | | Is the entity merchant-facing for card-number handling / contract conclusion? | Check merchant-contracting and security-guideline obligations. | | Is the entity only a gateway / processor? | Check whether it also underwrites merchants or merely provides technical processing. | | Is the product revolving / installment credit? | Check Installment Sales Act and credit / BNPL boundary. | | Is the product prepaid / debit / bank-account direct? | Route to [[payments/funds-transfer-vs-prepaid-boundary|prepaid / funds-transfer boundary]] or [[payments/account-to-account-payment-japan|A2A route]]. | ## Security Control Stack The Japan Credit Association security-guideline route matters because fraud and card-data leakage controls are not only issuer controls: - EC merchants and PSPs need card-information protection controls; - acquirers and PSPs coordinate merchant onboarding and security remediation; - issuer authorization and 3-D Secure / authentication controls sit on the cardholder side; - chargeback / dispute evidence crosses issuer, acquirer, PSP, and merchant systems; - recurring billing and tokenized payments add lifecycle / consent controls beyond the first transaction. The JCB public brand-business explanation is a useful plain-language model for separating cardholder, merchant, issuer, acquirer, and brand / payment-network roles before adding Japan-specific registration and security controls. ## Common Misreadings The following table is scoped to public primary sources (meti.go.jp, j-credit.or.jp). It restates licence / structure / product boundaries from those materials and does not invent market share, ranking, or unstated numerical claims. ^[source:meti.go.jp; j-credit.or.jp] | Misreading | Better reading | |---|---| | "JCB is only a card issuer." | JCB can be read as a domestic card brand, issuer, acquirer, and network actor depending on context. | | "PSP = acquirer." | A PSP may be a technical gateway, merchant-contracting operator, settlement actor, or all of these. | | "3-D Secure solves card fraud." | Authentication is one control; merchant screening, tokenization, monitoring, and dispute handling still matter. | | "Card company = consumer lender." | Issuer credit risk is one layer; merchant acquiring and scheme rules are different layers. | ## Research Checklist 1. Identify whether the entity is issuer, acquirer, brand, processor / PSP, merchant, or multiple roles. 2. Check METI registration category and public company disclosures. 3. Check whether card data is stored, tokenized, or handled by a third-party processor. 4. Check whether the product includes revolving, installment, BNPL, or only charge-card settlement. 5. Link merchant-risk questions to [[payments/psp-merchant-settlement-risk|PSP settlement risk]] and consumer-credit questions to [[payments/japan-bnpl-credit-purchase-boundary|BNPL / credit-purchase boundary]]. ## Related - [[payments/INDEX]] - [[payments/card-acquiring-japan-stack]] - [[payments/japan-card-security-authentication-controls]] - [[payments/credit-purchase-card-operators-japan-index]] - [[payments/psp-merchant-settlement-risk]] - [[payments/japan-bnpl-credit-purchase-boundary]] - [[payments/cashless-jp-landscape]] - [[card-issuers/jcb]] - [[card-issuers/smbc-card]] - [[card-issuers/mufg-nicos]] - [[payment-firms/gmo-payment-gateway]] - [[INDEX|FinWiki index]] ## Sources - METI: Installment Sales Act registration lists. - METI: card / post-payment FAQ and credit-card security guideline revision release. - Japan Credit Association: security guideline document page and 5.0 / 6.0 guideline materials. - JCB: card-payment participant model and merchant rules. - FSA: licensed / registered financial institutions portal. - Payments Japan Association: public publication index.