As more Singapore enterprises scale their operations, invoicing efficiency and compliance are becoming critical priorities. To support this, the Infocomm Media Development Authority (IMDA) published the InvoiceNow Enterprise Best Practice Guide (Nov 2025), offering clear direction for organisations adopting InvoiceNow at an enterprise level.
Below are the most important highlights every enterprise should know.
1. InvoiceNow streamlines manual-heavy P2P processes
The guide notes that despite ERP adoption, many enterprises still rely on PDFs, manual validation and long email threads for invoicing. InvoiceNow solves this by offering:
- Standardised, machine-readable invoice formats
- Secure transmission across the Peppol network
- Automated processing within ERP systems
This reduces errors, speeds up processing cycles, and strengthens internal controls.
2. Enterprises should start with a focused implementation scope
IMDA recommends beginning with two core functions:
- Receiving and sending e-invoices/credit notes
- Using Invoice Responses (accepted, under query, rejected, paid)
This approach delivers quick operational improvements while laying the foundation for wider adoption.
3. Support both PINT@SG and SG BIS invoice formats
The Peppol network currently supports two formats. The guide emphasises the need for enterprises to:
- Automatically detect both formats
- Map them into a unified ERP schema
- Maintain metadata for auditability
This ensures compatibility throughout the transition to PINT@SG.
4. Data mapping is the most critical step for success
The exact fields enterprises must support – covering mandatory Peppol fields, GST InvoiceNow fields, and optional fields.
This ensures invoices are compliant, readable, and processed correctly by systems across the network.
5. InvoiceNow improves 3-way matching accuracy
With structured data like PO numbers, order line references and standardised item details, InvoiceNow enhances:
- PO–GR–Invoice matching
- Exception handling
- Validation tolerance
This makes governance stronger and reduces mismatches.
6. Invoice Responses enhance transparency for suppliers
Instead of chasing email updates, suppliers get structured, automated statuses such as “Accepted”, “Under Query”, or “Paid”.
This strengthens buyer–supplier communication and speeds up issue resolution.
Conclusion
IMDA’s InvoiceNow Enterprise Best Practice Guide distils the essential steps for large organisations adopting InvoiceNow effectively. The most important takeaway is clear: enterprises can achieve smoother, more accurate and more transparent finance operations by implementing standardised e-invoicing practices aligned with the guide’s recommendations.
As Singapore moves toward broader e-invoicing adoption, enterprises adopting InvoiceNow today are better positioned for scalability, compliance, and long-term efficiency.Find the IMDA full guide here – IMDA Guide
