How do Singapore businesses register their UEN-based Peppol ID on the SG Peppol Directory?
Singapore businesses register their Peppol ID—derived from their Unique Entity Number (UEN)—through an IMDA-accredited Access Point or InvoiceNow-Ready accounting software. The Access Point creates the directory entry linking the UEN to the business's chosen AP endpoint. Once registered, the business becomes addressable on the InvoiceNow network for incoming structured invoice delivery.
What is the step-by-step Peppol ID registration process?
The Peppol ID registration process for Singapore businesses involves: (1) selecting an IMDA-accredited Access Point (AP) or InvoiceNow-Ready software that includes AP connectivity; (2) providing the business's nine-character UEN to the AP for directory registration; (3) the AP creates the SG Peppol Directory entry mapping the UEN to the AP's network endpoint; (4) the Peppol ID becomes active and discoverable by other network participants. Some InvoiceNow-Ready software solutions complete this registration automatically during account setup without requiring separate action by the business.
- Select IMDA-accredited Access Point or InvoiceNow-Ready software
- Provide UEN to AP provider for directory registration
- Confirm Peppol ID format: 0195:SG[UEN]
- Verify directory entry is active (AP confirms or business can search directory)
- Test invoice receipt from a known sender to validate routing
- Update trading partners with Peppol ID for structured invoice routing
When should businesses register their Peppol ID?
GST-registered businesses subject to the November 2025 or April 2026 mandatory phases should complete Peppol ID registration before the relevant mandate date. IRAS encourages voluntary GST registrants to register early to enable smooth supplier onboarding. Even businesses not yet in a mandatory phase benefit from early registration as it allows them to receive InvoiceNow invoices from suppliers who may already be using the network, improving AP automation capabilities.
Frequently Asked Questions
- Can a business have multiple Peppol IDs for different subsidiaries or business units?
- In Singapore, each business is identified by a unique UEN, so a legal entity has one primary Peppol ID. Subsidiaries that are separately incorporated with their own UEN have their own Peppol IDs. Business units within a single legal entity share the parent entity's Peppol ID, though some AP providers offer sub-routing capabilities to direct invoices to the correct internal cost center based on embedded routing metadata.
- What happens if a business changes its Access Point provider?
- When a business changes its AP provider, the SG Peppol Directory entry must be updated to point to the new AP's endpoint. The new AP handles the directory update as part of the migration process. During the transition period, businesses should ensure continuity of invoice receipt by coordinating the cutover timing with both old and new AP providers.