SEPA Integration

6B are trusted digital engineering partners for financial institutions, providing connectivity to SEPA through ISO 20022-compliant APIs, secure messaging channels, and certified payment service providers. From solution design and scheme readiness through to development, testing, and long-term monitoring, we ensure seamless and compliant integration with SEPA’s harmonised payments infrastructure.

Our mission is to help organisations deliver efficient, transparent, and interoperable euro payment services that support operational growth and enhance customer experience across the EU and EEA.

Understanding SEPA Integration

SEPA (Single Euro Payments Area) enables standardised euro payments across 36 European countries, supporting frictionless cross-border credit transfers and direct debits. SEPA schemes—including SCT, SCT Inst, and SDD—are built on ISO 20022 XML messaging standards, ensuring interoperability between banks and regulated payment providers.

SEPA integration allows your systems to initiate payments, receive confirmations, process mandates, handle exceptions, and reconcile transactions through unified workflows. SCT supports next-day or same-day euro transfers, while SCT Inst offers real-time payments, typically settling within seconds and operating 24/7. SDD supports recurring or one-off direct debit collections, including mandate management and automated exception handling via returns and rejects.

Depending on your regulatory status, SEPA connectivity may be achieved directly through your bank, via a SEPA-compliant payments provider, or through a cloud-based service bureau. Integrations must incorporate strict security, validation, encryption, and audit controls to comply with European payments regulations, including PSD2 and EPC scheme rules.

A well-built SEPA integration enables multi-country payment capability, efficient reconciliation, and automated end-to-end processing across different financial workflows.

Our SEPA Integration Process

Our SEPA integration process begins with a discovery phase, during which we work closely with your technical, operational, and regulatory teams to understand your payment flows and determine which SEPA schemes you need to support. We identify your connectivity model, map message requirements to ISO 20022 payment structures, and outline authentication, mandate management, and reconciliation workflows.

Once requirements are defined, we design a secure integration architecture that aligns with SEPA specifications and your internal systems. This includes encrypted communication, certificate or token-based authentication, schema validation, routing logic, and automated exception handling. Our architects ensure alignment with EPC rules, PSD2 requirements, and your bank or PSP’s technical guidelines.

We accelerate development using 6B’s reusable integration components, including ISO 20022 parsers, SCT/SCT Inst/SDD message handlers, validation engines, and reconciliation modules. These components support high-quality delivery while maintaining compliance and operational resilience.

During testing, we simulate SEPA payments, validate message formats, process exceptions, and work with banks or PSPs to complete their certification steps. After deployment, we embed monitoring, auditing, and alerting to ensure your SEPA integration operates reliably and remains compliant with scheme updates, PSD2 changes, and evolving European standards.

Benefits of SEPA Integration

Integrating your systems with SEPA provides fast, cost-efficient, and standardised euro payments across the EU and EEA. Automated payment initiation, confirmation processing, and mandate management reduce manual effort and operational costs, while structured ISO 20022 workflows improve accuracy and reduce the likelihood of payment errors or compliance issues.

SEPA Instant (SCT Inst) enables real-time euro transfers, greatly enhancing customer experience for payouts, disbursements, refunds, and peer-to-peer transactions. For organisations relying on recurring payments, SDD supports automated billing, improved revenue collection, and reliable mandate-driven workflows.

SEPA integration improves transparency and financial control through structured exception handling, automated reconciliation, and detailed audit trails. This strengthens compliance, supports scalable operations, and helps organisations manage high-volume payment footprints across multiple European jurisdictions.

As digital commerce and cross-border activity expand, SEPA provides a unified European payment framework that enhances scalability, streamlines financial operations, and enables consistent customer experiences regardless of location.