APAC · IRAS / IMDA (network)
Singapore
GST InvoiceNow Requirement: phased mandate for GST-registered businesses to send invoice data to IRAS via the InvoiceNow network. IRAS confirmed at COS Debate Feb 2026 that all GST-registered will be in by April 2031.
// Phased rollout
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01 May 2019 · liveVoluntary InvoiceNowSingapore became first non-EU Peppol Authority.
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01 May 2025 · liveSoft launch — newly-incorporated voluntary registrantsVoluntary participation begins.
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01 Apr 2026 · upcomingAll new voluntary GST registrantsMandatory for newly incorporated voluntary registrants.
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01 Apr 2028 · upcomingNew compulsory + smaller existingPhased extension to existing registrants.Annual turnover ≤ S$200,000
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01 Apr 2031 · upcomingAll GST-registered businessesFinal phase: full coverage.
// Penalties
GST Act non-compliance fines apply.
// ERP implementation notes
SAP S/4HANA (incl. DRC) & SAP ECC
SAP DRC Singapore: PINT-SG via SAP Peppol Exchange Service or partner AP.
Microsoft Dynamics 365 (F&O + Business Central)
D365 BC E-Document app + IMDA-accredited IRSP.
// Frequently asked questions
When does Singapore e-invoicing become mandatory?
See the phased rollout section above for the full schedule. The Singapore mandate is administered by IRAS / IMDA (network).
What schema does Singapore use for e-invoicing?
Singapore uses PINT-SG (UBL 2.1). Transmission: InvoiceNow network (Peppol).
Which ERPs support Singapore e-invoicing today?
See the ERP implementation notes section above. Cloudare implements e-invoicing on Oracle Fusion, Oracle EBS, NetSuite, SAP, MS Dynamics, Zoho, Odoo, Sage, QuickBooks, and Tally — each with country-specific guidance.
What is the archive retention period for Singapore e-invoices?
5 years from end of tax period.