Overview

BKM Express was launched by the Interbank Card Center of Turkey (BKM — Bankalararası Kart Merkezi), an organization founded by 13 major Turkish banks. BKM Express is Turkey's leading local online payment solution, enabling consumers to pay using their bank-issued credit or debit cards without registering for a third-party wallet. It covers cardholders from 20+ Turkish banks, making it one of the most important local payment methods in the Turkish e-commerce market.

BKM Express's core value proposition is simplifying the online checkout experience for Turkish consumers. Through One-Click Pay technology, users register their card on first purchase and then complete subsequent transactions with a single click or biometric verification — no need to re-enter card numbers or security codes. BKM Express also supports Turkey's unique installment payment culture (Taksit), where consumers commonly split purchases into 3-12 monthly payments. As of 2026, BKM Express is integrated with thousands of Turkish e-commerce websites, holding a significant share of Turkey's online payment market.

Key Strengths

  • Full Turkish Banking Coverage: Founded by Turkey's 13 major banks and integrated with 20+ financial institutions (including İşbank, Garanti BBVA, Akbank, Yapı Kredi, Ziraat Bankası), BKM Express covers the vast majority of Turkish bank card users. For e-commerce merchants targeting Turkish consumers, integrating BKM Express is essential for reaching local buyers.
  • One-Click Pay Boosts Conversion: After first-time card registration, returning shoppers complete purchases with a single click or biometric verification. Industry data shows one-click payment can reduce cart abandonment by 30-50% — a significant advantage for Turkish e-commerce merchants.
  • Installment (Taksit) Support: Turkish consumers strongly prefer installment payments — 3 to 12 months interest-free installments are common for electronics, home appliances, and clothing. BKM Express natively supports installment options that merchants can configure by product category.
  • 3-D Secure 2.0 Security: EMVCo 3-D Secure 2.0 certified with biometric and mobile verification, balancing transaction security with conversion rate optimization. Risk controls comply with Turkish Central Bank (TCMB) regulations.
  • No Third-Party Account Needed: Consumers pay directly with their bank-issued cards — no need to register for PayPal, Stripe, or any external digital wallet, reducing a key source of checkout friction.

Product Ecosystem

BKM Express One-Click Pay

The core product — One-Click Pay (Tek Tıkla Öde) — lets users register their card on first purchase and complete subsequent transactions at any participating merchant with just a security code or biometric verification. This integrates naturally with backend payment integration workflows.

BKM Express Installment (Taksit)

The installment feature allows merchants to offer 3, 6, 9, or 12-month payment plans on specific products or order amounts. BKM Express calculates each installment amount and applicable interest automatically. Funding is provided by partner banks, and merchants receive the full payment (minus fees) within 3-5 business days.

BKM Express Mobile SDK

BKM Express provides iOS and Android SDKs for in-app payment integration. Consumers authenticate via biometric verification (fingerprint or facial recognition) without leaving the app or redirecting to a browser.

Limitations

  • Turkey-Only: BKM Express is exclusively for Turkish domestic transactions. Merchants serving international markets need a separate global payment gateway alongside BKM Express.
  • Difficult Foreign Merchant Access: Non-Turkish companies cannot use BKM Express directly. Even foreign entities operating in Turkey need a local legal entity, Turkish bank account, and individual negotiations with BKM member banks.
  • Limited Developer Resources: Compared to Stripe or Adyen, BKM Express provides less transparent API documentation, limited sandbox testing environments, and minimal developer community support.
  • TRY-Only Settlement: All transactions and settlements are in Turkish Lira only. Multi-currency support and automatic currency conversion are not available.
  • Mobile Experience Gap: Post-2020, BKM Express client app update frequency has declined noticeably, with UI design and interaction smoothness lagging behind international payment applications.

Use Cases

  • Turkish Local E-commerce (★★★★★): BKM Express is the standard payment option for Turkish online retail, covering the majority of bank card users. Combined with e-commerce platform localization, it's essential for the Turkish market.
  • Installment-Based Sales (★★★★★): For electronics, furniture, apparel, and other high-value items, BKM Express installment options effectively increase average order value and conversion rates.
  • Cross-Border Business (★): Turkey-only — pair with Stripe or PayPal for international transactions.

Pricing

Service Pricing Notes
BKM Express Access Fee Negotiated with BKM and member banks
Transaction Fee Set by issuing and acquiring banks (no unified public rate)
Installment Service Partner banks provide funding; merchants typically share interest cost
Monthly Fee Varies by integration scale and partnership terms

Note: BKM Express pricing and integration terms are negotiated directly with BKM and its member banks — no standard public rate card exists.

FAQ

  • How is BKM Express different from international payment gateways? BKM Express is a Turkish domestic payment infrastructure based on the country's interbank card center system, supporting only Turkish Lira and local bank cards. International gateways like Stripe support multi-currency and global card networks but may not cover local Turkish installment and interbank payment needs. See cross-border payment platform comparison.

  • Can non-Turkish companies integrate BKM Express? Indirectly, with significant complexity. A Turkish legal entity and local bank account are required, followed by individual negotiations with BKM member banks. It's recommended to work with local payment partners. See Cross-border Payment Platform Comparison.

  • Which banks does BKM Express support? 20+ major Turkish banks including İşbank, Garanti BBVA, Akbank, Yapı Kredi, Ziraat Bankası, Halkbank, Vakıfbank, and DenizBank. See Cross-border Payment Comparison.

  • Does BKM Express support mobile payments? Yes — iOS and Android SDKs with in-app payment and biometric verification (fingerprint/face recognition). See Payment Gateway Sandbox Testing.

  • How do BKM Express installments work? Partner banks provide installment funding. Merchants receive the full payment (minus fees) within 3-5 business days. Consumers repay the bank in installments according to the agreed schedule. See Installment Payment Solutions.