Singapore Mandates “InvoiceNow” E-Invoicing
for All GST-Registered Businesses by 2031

SINGAPORE — The Inland Revenue Authority of Singapore (IRAS) has unveiled a comprehensive roadmap to mandate the InvoiceNow e-invoicing requirement for all GST-registered businesses by April 2031. Announced during the Committee of Supply (COS) 2026 debates, the move aims to bolster productivity and streamline tax compliance across the nation.

A Phased Approach to Digital IntegrationInvoiceNow, based on the international Peppol framework, allows for the seamless digital transmission of invoices. The nationwide rollout will be implemented progressively over the next few years:

• April 2028: Compulsory for new registrants and small businesses with supplies ≤ $200,000.
• April 2031: Full implementation for all existing businesses, including those with supplies exceeding $4 million.

Government Grants and Transition SupportTo encourage early adoption, the Singaporean government has introduced transitional funding. Small and Medium Enterprises (SMEs) are eligible for grants up to $1,000, while larger corporations can receive up to $5,000 to offset onboarding costs. Furthermore, SMEs can access “InvoiceNow-Ready” solutions free of charge until March 2031.

Global Connectivity and EfficiencyBeyond faster tax audits and refunds, the IRAS highlighted that adopting InvoiceNow positions Singaporean firms for better integration with global jurisdictions such as the EU, Australia, and Japan. By digitizing the billing cycle, the government expects to bring an additional 90,000 businesses into the network, significantly reducing manual processing errors and improving overall cash flow.

https://www.iras.gov.sg/taxes/goods-services-tax-(gst)/gst-invoicenow-requirement