E-invoicing in Singapore

Singapore’s nationwide e-invoicing network, known as InvoiceNow, operates on the open standard Peppol framework, which allows businesses to send and receive structured invoice data directly between different finance systems. 

To support the InvoiceNow initiative and in line with the plans of Inland Revenue Authority of Singapore (“IRAS”) to digitalise tax administration, GST-registered businesses are required to adopt InvoiceNow and submit their invoice data to the IRAS via the InvoiceNow network. This mandatory requirement is being rolled out progressively in phases as follows: 

Data to be transmitted 

GST-registered businesses are generally required to transmit invoice data on the following supplies and purchases transactions that are reported in the GST return, except for excluded transactions:

• Standard-rated supplies 
• Zero-rated supplies 
• Exempt supplies 
• Standard-rated purchases 
• Zero-rated purchases

Excluded transactions

• Transactions with no underlying supplies (e.g. deemed supplies, goods exported without sales) or purchases, but are regarded as supplies or purchases to be reported solely for GST purposes
• Reverse charge transactions  
• Exempt financial services, and exchange or loan of digital payment tokens 
• Import permits for the importation of goods 

Due Date for Transmission 

All invoice data must be submitted to IRAS by the earlier of: 

• The date on which the relevant GST return is filed; and 
• The filing due date of the relevant GST return

Grants Available*

• Productivity Solutions Grant (PSG)
  Businesses adopting IMDA‑accredited InvoiceNow‑Ready Solution Providers may be eligible for the Productivity Solutions Grant (PSG) of up to S$30,000 for IT solutions and equipment (including InvoiceNow‑ready solutions)
   
• GST InvoiceNow Transition Grant (Smaller and Medium Enterprises)
  GST‑registered businesses with annual supplies ≤ S$4 million (based on FY2025) may receive a S$1,000 cash grant to defray the cost of:
  • Subscribing to an InvoiceNow‑Ready Solution Provider (IRSP), or
  • Connecting to InvoiceNow via an IMDA‑accredited Access Point Provider (AP)
     
• GST InvoiceNow Transition Grant (larger businesses)
  GST‑registered businesses with annual supplies > S$4 million (based on FY2025) may receive a S$5,000 cash grant to defray the cost of connecting to InvoiceNow via an AP Provider
   
• InvoiceNow Queen Bee Grant
  Large enterprises with > S$4 million turnover may receive up to S$25,000 cash grant to support:
  • Integration of custom ERP solution to InvoiceNow, and
  • Transacting with their business counterparts on InvoiceNow

*Subject to eligibility criteria. Contact us to learn more.

Next Steps

Connect with us to learn more about how you can become a GST InvoiceNow-Ready business. 

Our team is equipped to support your business at every stage of the GST InvoiceNow journey. From initial assessment of your business’s readiness to strategic planning, seamless implementation, and ongoing support after implementation, we work with you to develop a comprehensive road map tailored to your needs.

This article focuses on the e-invoicing requirements in Singapore and may be subject to legislative and regulatory changes. As an independent member of the Baker Tilly International network, we offer insights into more than just the local rules.