Singapore InvoiceNow (Peppol) for Business Central

Singapore is moving GST-registered businesses onto IMDA InvoiceNow — the national Peppol-based e-invoicing network — with the phased IRAS GST InvoiceNow requirement. This extension makes Dynamics 365 Business Central a first-class participant: it produces compliant Peppol PINT-SG (SG BIS Billing 3.0) documents from your posted sales invoices and credit memos, transmits GST data to IRAS through an accredited Access Point, and sends and receives invoices over the InvoiceNow network.

This is not an instant AppSource download. ECOSIRE builds the extension to your chart of accounts, GST posting setup, and document layouts, then installs it as a per-tenant extension directly on your Business Central environment (cloud or on-prem) and supports it after go-live.

What we build

Written in AL as table and page extensions over Sales Header/Line and the GST/VAT posting setup, the solution adds a Peppol PINT-SG document mapper, an Access Point connector, and validation against the SG business rules (BR-SG). An event subscriber on invoice posting queues the document; a job queue entry handles transmission, acknowledgements (MLR/business response), and inbound documents. SGD currency handling and a configurable GST code map (SR, ZR, ES, TX, OS and reverse-charge) translate your posting groups to the correct Peppol tax categories.

We wire UVL/Peppol participant IDs (your UEN), endpoint registration coordination with your chosen accredited Access Point, and surface transmission status, errors, and IRAS acknowledgements on the invoice itself. Permission sets scope who can transmit and reconfigure. Where you run Power Platform, transmission events can be mirrored to Dataverse for reporting.

You get a tested, documented extension matched to your real master data — and a team that maintains it as IMDA, Peppol PINT-SG, and IRAS rules evolve.