Singapore GST InvoiceNow Implementation

GST InvoiceNow connects invoice data with IRAS through InvoiceNow-ready solutions. Electronic invoice exchange, data transmission and GST return filing have different functions.

Prepare the invoice-data connection

We coordinate the finance, software and Singapore GST-professional workstreams. Businesses applying for voluntary GST registration from 1 April 2026 are within the relevant phase regardless of incorporation date or structure. Other GST-registered businesses follow later phases; one deadline is not applied to everyone.

Information and documents

Provide GST status, registration plans, software, invoice samples and customer or supplier data flows. The scope identifies the applicable phase, gaps, provider requirements and implementation plan. Software configuration, testing, training and ongoing exception handling are expressly included or separately quoted; transmission capability is confirmed before reliance.

Scope, fees and completion

Coutts Consultants coordinates the records and the appropriate accounting professional, with unresolved items referred for management approval. The quotation specifies periods, transaction volumes, outputs and any included submissions. Audit, additional tax advice and reconstruction of incomplete records are separately scoped where needed; management remains responsible for the information, approvals and payments.