Peppol Technical Playbook

SG BIS 3.0 Specifications

Peppol Business Interoperability Specifications (BIS) is developed in Europe for the eProcurement processes to standardise electronic documents exchanged between sending and receiving Access Points (AP). For exchanges of electronic documents which are non-European, i.e. Singapore, then the country specific BIS Billing 3.0 specification is to be adopted instead of the Peppol BIS Billing 3.0.

In Singapore, SG Peppol Bis Billing 3.0 has been adopted in order to cater for country specific requirements such as:

• Replacement of VAS (Europe) to Singapore’s GST (Goods and Services Tax) and to cater for non-GST registered businesses;
• Specific GST calculation and rounding steps for presenting amount in invoices
• Update of GST code list value to identify the specific GST categories available to use; and
• Singapore specific payments such as Direct debit using GIRO and Credit Transfer using Unique Entity Number (UEN)-based PayNow Corporate

For more information on the Singapore (SG) Peppol BIS 3.0 specifications, please click here.

SG Peppol Directory

The SG Peppol Directory is a facility for searching Singapore businesses that are registered on the nationwide e-invoicing network. Watch the video guide below:

SIMPLE SEARCH FUNCTION

Perform a simple search for Singapore businesses who are registered on the Peppol network using their company name or UEN.

Successful searches will showcase all relevant companies with their full name, Peppol IDs and the type of Peppol document they can receive.

BULK SEARCH FUNCTION

Perform a single search of multiple companies using the bulk search feature. Simply upload a CSV or Excel file containing the list of UENs of companies and the result of the search will be downloaded automatically with the company names, Peppol IDs and type of Peppol documents supported.

REGISTERED ACCOUNTS ON SG PEPPOL DIRECTORY

Registered business users on the platform will be able to access the following features:

• Download the entire SG Peppol Directory in CSV format
• Set-up an API connectivity to the platform to carry application initiated UEN searches

For any questions regarding the SG Peppol Directory, please visit the FAQs section or drop an email to support@peppoldirectory.sg

4-Corner Model Explained

Below is an explanatory video of how the 4-Corner Model concept, also known as the Peppol e-delivery concept, helps to deliver business documents such as e-invoice on the Peppol network (also known as InvoiceNow).

Important Notes on SG BIS 3.0

1. Best Practices
   
   Peppol standard defines 24 mandatory fields for e-invoice to ensure basic information on an invoice being transmitted for processing. However, there are also a few other non-mandatory fields which are commonly used to solve specific problems, which result in buyers requesting information in these fields. IMDA is publishing and maintaining a set of common practices for industry to align their practices (see Table 1).
   
   
   Table 1: Best Practices
   
   
2. No Empty Elements for the SG Peppol Invoice Document
   
   If you are not using any of the optional fields in the SG Peppol Invoice document, do not include the element information in the invoice XML document (see Figure 1).
   
   
   Figure 1. SG Peppol BIS Billing 3.0 rules: Peppol-EN16931-R008
   
   
3. UBLVersionID
   
   UBLVersionID is an optional element in the invoice XML document. If this element is used, do put “2.1” as the version ID. (see Figure 2)
   
   
   
   
   Figure 2. SG Peppol BIS 3.0 Billing rules: UBL-CR-002
   
   
4. Two Decimal Requirements
   
   Please take note of the two decimals restriction on the following elements on the Invoice and Credit Note documents (refer to Table 2.1 and 2.2).
   
   

   Document	Peppol Fields	Peppol BIS Billing 3.0 2 decimal rules	SG Peppol BIS Billing 3.0 2 decimal rules
   Invoice	cac:AllowanceCharge / cbc:Amount	Yes	Yes
   	cac:AllowanceCharge / cbc:BaseAmount	Yes	Yes
   	cac:TaxTotal / cbc:TaxAmount	Yes	Yes
   	cac:TaxTotal / cac:TaxSubtotal / cbc:TaxableAmount	Yes	Yes
   	cac:TaxTotal / cac:TaxSubtotal / cbc:TaxAmount	Yes	Yes
   	cac:LegalMonetaryTotal / cbc:LineExtensionAmount	Yes	Yes
   	cac:LegalMonetaryTotal / cbc:TaxExclusiveAmount	Yes	Yes
   	cac:LegalMonetaryTotal / cbc:TaxInclusiveAmount	Yes	Yes
   	cac:LegalMonetaryTotal / cbc:AllowanceTotalAmount	Yes	Yes
   	cac:LegalMonetaryTotal / cbc:ChargeTotalAmount	Yes	Yes
   	cac:LegalMonetaryTotal / cbc:PrepaidAmount	Yes	Yes
   	cac:LegalMonetaryTotal / cbc:PayableRoundingAmount	Yes	Yes
   	cac:LegalMonetaryTotal / cbc:PayableAmount	Yes	Yes
   	cac:InvoiceLine / cbc:LineExtensionAmount	Yes	No (no decimal limit)
   	cac:InvoiceLine / cac:AllowanceCharge / cbc:Amount	Yes	No (no decimal limit)
   	cac:InvoiceLine / cac:AllowanceCharge / cbc:BaseAmount	Yes	No (no decimal limit)

   Table 2.1
   
   

   Document	Peppol Fields	Peppol BIS Billing 3.0 2 decimal rules	SG Peppol BIS Billing 3.0 2 decimal rules
   Credit Note	cac:AllowanceCharge / cbc:Amount	Yes	Yes
   	cac:AllowanceCharge / cbc:BaseAmount	Yes	Yes
   	cac:TaxTotal / cbc:TaxAmount	Yes	Yes
   	cac:TaxTotal / cac:TaxSubtotal / cbc:TaxableAmount	Yes	Yes
   	cac:TaxTotal / cac:TaxSubtotal / cbc:TaxAmount	Yes	Yes
   	cac:LegalMonetaryTotal / cbc:LineExtensionAmount	Yes	Yes
   	cac:LegalMonetaryTotal / cbc:TaxExclusiveAmount	Yes	Yes
   	cac:LegalMonetaryTotal / cbc:TaxInclusiveAmount	Yes	Yes
   	cac:LegalMonetaryTotal / cbc:AllowanceTotalAmount	Yes	Yes
   	cac:LegalMonetaryTotal / cbc:ChargeTotalAmount	Yes	Yes
   	cac:LegalMonetaryTotal / cbc:PrepaidAmount	Yes	Yes
   	cac:LegalMonetaryTotal / cbc:PayableRoundingAmount	Yes	Yes
   	cac:LegalMonetaryTotal / cbc:PayableAmount	Yes	Yes

   Table 2.2
   
   
5. Past Important Notes
   
   Click here (594.72KB) to download the past important notes.

Transacting with Partners

Sending E-Invoices to Government

The Singapore Accountant-General’s Department (AGD) provides government vendors with the additional channel to send e-invoices to the Government over the nationwide e-invoicing network, now called InvoiceNow.

AGD considers InvoiceNow as the preferred channel for suppliers to submit e-invoices to the Government agencies via this network. By using InvoiceNow to send e-invoices, government vendors can use the same business process to directly transact with the Government from their own systems and with other business counterparties on the network. This will bring more benefits to the participating businesses in the long run.

Please refer to the guide developed by AGD here that explains how you may do so, and the requirements to comply with.

Validex Tool

To ensure compliance to the SG Peppol BIS specifications, Access Point providers must ensure that all invoices sent over the Peppol network pass the validation rules.

The Validex tool is free to use for checking whether the invoice is compliant to the SG Peppol BIS specifications.

1. Select document type
2. Upload the invoice XML file
3. Validation status will be shown after successful upload.
4. You can select the “View Report” button for detailed results.

Click here to access the free Validex tool for check whether the invoice is compliant to the SG Peppol BIS specifications.