Every GST-registered business in Singapore has to send invoice data to IRAS through the InvoiceNow network. Whether that is easy or awkward depends entirely on what you already run. Checked against IMDA's official accredited list.
Checked against IMDA's accredited InvoiceNow-Ready Solution Provider list dated 9 September 2026 and IRAS's free-of-charge package list dated 10 September 2026. Both change — verify against the current lists before you commit money. This is a guide, not advice, and is not affiliated with IRAS or IMDA.