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How to Set Up InvoiceNow E-Invoicing in Xero (Singapore Guide)
InvoiceNow is no longer optional. Every new voluntary GST registrant has had to transmit invoice data to IRAS through the Peppol network since 1 April 2026, and the mandate now rolls out to every GST-registered business between 2028 and 2031. If you run Xero, connecting is a one-off job that takes about twenty minutes. Here is the exact setup, what your Peppol ID looks like, how to send and receive e-invoices, and the mistakes that quietly break the connection.