Singapore is expanding its GST InvoiceNow requirement, making digital invoice-data transmission an important part of future GST compliance.
1. InvoiceNow Uses the Peppol Network
InvoiceNow is Singapore’s nationwide e-invoicing network based on the Peppol standard.
2. GST-Registered Businesses Are Being Phased In
IRAS is rolling out the requirement in stages depending on registration timing and annual supplies.
3. 2026 Brings New Implementation Dates
Businesses applying for voluntary GST registration from 1 April 2026 are subject to the requirement from that date under the stated rules.
4. Existing Businesses Have Later Dates
For existing GST-registered businesses, implementation dates extend from April 2028 through April 2031 depending on annual supplies.
5. Onboarding Early Can Help
IRAS encourages GST-registered businesses to onboard early so they can test invoice transmission and resolve system issues.
Conclusion
Singapore is making digital invoicing part of the GST compliance journey. Businesses should check their implementation date and prepare their systems early.
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Source: IRAS — GST InvoiceNow Requirement, current 2026 guidance.