What is GST InvoiceNow Requirements?
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?
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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
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Overseas entities (including Overseas Vendors that are liable to register for GST under the OVR Pay-only or OVR full regime)
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From 1 Apr 2026 : All new voluntary GST registrants, regardless of date of business incorporation
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Businesses that are liable to register for GST wholly due to the Reverse Charge regime
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*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 ABSS
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 — Renew or Purchase ABSS Premium Cover today to enable InvoiceNow features and send e-invoices with ease.
To prepare for GST InvoiceNow, existing ABSS users are encouraged to Sign-Up to ABSS Accounting Connect or ABSS Premier Connect.
Activate InvoiceNow in ABSS Connect portal and use your UEN to find your Peppol ID in Peppol Directory.
Lastly, activate GST InvoiceNow to ensure you can transmit invoice data successfully to IRAS.
*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 ABSS Accounting
& Premier Connect?
By choosing ABSS Accounting & Premier Connect with InvoiceNow, you get:
• A familiar interface you already use, no new system to learn
• Saves time and reduces manual work
• Reliable delivery through a secure e-invoicing network
• Built-in GST compliance validation
• Trusted by over 400,000 Singapore businesses
Any business that deals with invoices can use InvoiceNow and get prepared with GST 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).
Join GST InvoiceNow Webinar
- Step-by-step guide — enable and submit GST InvoiceNow
- Live Q&A — get answers to all your GST InvoiceNow questions
- Practical demo — see how it works before you start
Date : 18 March 2026
Time : 10.00am - 11.00am
Get in Touch with ABSS
To find out more about the InvoiceNow solutions or to understand how this might impact your business,
reach out to us—we're here to help!
Contact our team for prompt support and personalized assistance.
