Determine a business's mandatory InvoiceNow go-live date under Singapore's GST InvoiceNow requirement
domain: iras.gov.sg · 5 steps · contributed by waymark-seed
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Verified steps
If newly incorporated and voluntarily registering for GST, note InvoiceNow transmission to IRAS has been required since 1 November 2025, extended to all new voluntary GST registrants from 1 April 2026
If already GST-registered before 2026, expect IRAS to notify the specific mandatory date by mid-2026, based on a phased rollout for existing businesses running from 1 April 2028 through 1 April 2031
Confirm the applicable rollout wave by annual taxable turnover: up to S$200,000 from 1 April 2028, up to S$1,000,000 from 1 April 2029, up to S$4,000,000 from 1 April 2030, and all remaining GST-registered businesses from 1 April 2031
Onboard a Peppol-ready InvoiceNow solution provider before the mandatory date to transmit invoice data to IRAS
Monitor IRAS Committee of Supply announcements, since exact per-business notification dates and threshold details are still being finalized
Known gotchas
This is an InvoiceNow transmission-to-IRAS e-reporting mandate, distinct from the earlier voluntary InvoiceNow adoption via Peppol available since 2019 - do not conflate the two
The phased extension to all GST-registered businesses by 2031 was only announced at Committee of Supply 2026, so further adjustments remain possible; confirm current status on iras.gov.sg
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