Sri Lanka has approved a new VAT invoice format that will take effect from 1 July 2026, requiring businesses to include additional mandatory data elements in their VAT invoices.

The new format introduces several key changes from the current requirements. Invoice numbers must follow a strictly defined format, while the total consideration must be stated in both numerical and written form. Both the invoice issuer and recipient must now include telephone numbers as mandatory fields. Additional required elements include designated fields for place of supply and payment method.

Each data element will have a dedicated field within the revised invoice layout, representing a move toward greater standardisation of VAT documentation. The implementation timeline has been extended twice from its original date, allowing businesses to continue using the existing format until the July 2026 deadline.

The enhanced invoice requirements align with Sri Lanka's broader VAT compliance modernisation efforts, including the planned national e-invoicing system rollout scheduled for completion by year-end 2026.