GST InvoiceNow

What is the GST InvoiceNow Requirement

InvoiceNow is Singapore’s nationwide e-invoicing network based on Peppol standard. Introduced by the Infocomm Media Development Authority (“IMDA”) in 2019,

InvoiceNow enables businesses to easily send and receive invoices in a structured digital format. More information on the benefits of InvoiceNow is available on IMDA’s InvoiceNow webpage.

To support the nationwide InvoiceNow initiative and IRAS’s efforts to digitalise tax administration,

GST-registered businesses will be required to transmit invoice data to IRAS using InvoiceNow-Ready Solutions. This will be mandated in phases.

•Total annual supplies refer to the total value of standard-rated, zero-rated and exempt supplies made in all the prescribed accounting periods ending in calendar year 2025.

• Further details and information on the GST InvoiceNow Requirement implementation dates and phases will be available in the subsequent edition of the e-Tax Guide.

• IRAS will inform GST-registered businesses that were registered before 2026 of their respective mandatory implementation date by mid-2026. In the meantime, existing GST-registered businesses may self-help and use the Excel calculator to determine their applicable implementation date: GST InvoiceNow Implementation Date Calculator (XLSX, 48.9KB)

Who Must Comply and When

GST-registered businesses to use InvoiceNow	Businesses excluded from GST InvoiceNow Requirement
From 1 Nov 2025 : Companies that register for GST voluntarily within 6 months of being incorporated	Overseas entities (including Overseas Vendors that are liable to register for GST under the OVR Pay-only or OVR full regime)
From 1 Apr 2026 : All new voluntary GST registrants, regardless of date of business incorporation	Businesses that are liable to register for GST wholly due to the Reverse Charge regime

*Note: There are plans to progressively extend mandatory participation to new compulsory GST registrants and existing GST-registered businesses. IRAS will continue to consult industry partners and carefully review the feedback received before announcing further details. For further information, click here.

Your Next Step to Stay Compliant Starts with
Financio Accounting

Businesses are encouraged to get started early and plan for the adoption of the InvoiceNow solutions or update their internal
accounting systems to meet the GST InvoiceNow Requirements by following the steps outlined below:

Stay compliant with InvoiceNow. Sign up for Financio Accounting to enable InvoiceNow features and send E-invoices effortlessly.

Activate InvoiceNow in Financio Accounting using your UEN to locate your Peppol ID, complete the registration form, and provide consent to StoreCove.

Learn More: How to activate InvoiceNow

Finally, activate GST InvoiceNow to issue IRAS-compliant e-invoices seamlessly through the Peppol Network.

Learn More: How to activate GST InvoiceNow

Benefits of using GST InvoiceNow

*For more information on the accredited IRSPs, you may contact IMDA at einvoice@imda.gov.sg.

InvoiceNow-Ready Solutions also offer value-added features to ease tax compliance, e.g. IRSPs can build validation checks into the submission process to detect wrongful GST charges from non-GST registered suppliers.

Please refer to the guide on Recommended Features for the GST InvoiceNow Requirement: Validation Check on Wrongful GST Charges for more details. You may also approach your IRSPs, APs, or in-house enterprise solution providers.

Why Sign-Up to Financio Accounting

By choosing Financio Accounting, you get:

• Reliable delivery through a secure e-invoicing network
• Built-in GST compliance validation
• Trusted by over 400,000 of Singapore businesses

Any business that deals with invoices can use InvoiceNow and get ready for GST with InvoiceNow.

It’s designed specifically for business-to-business (B2B) transactions, enabling companies to send and receive e-invoices seamlessly through the Peppol network.

Please note: InvoiceNow is not intended for invoicing end consumers (B2C transactions).