Singapore: IRAS notifies pre-2026 GST registrants of their InvoiceNow dates
IRAS began notifying GST-registered businesses that were registered before 2026 of their individual mandatory InvoiceNow implementation dates from mid-2026. Existing registrants are phased by annual supplies between 1 April 2028 and 1 April 2031, with larger businesses earlier; the Committee of Supply confirmed in February 2026 that all GST-registered businesses will be in scope by April 2031. Businesses without GST returns for accounting periods ending in calendar 2025 will be told their date later. IRAS publishes an implementation-date calculator so a business can determine its own deadline rather than wait for the letter. New voluntary registrants have been in scope since 1 April 2026, and newly-incorporated voluntary registrants since 1 November 2025.