Singapore’s GST InvoiceNow e‑invoicing mandate will extend to all GST‑registered businesses with a phased rollout from 1 April 2028 to 1 April 2031, based on annual supply thresholds. Early adopter windows for voluntary registrants began in May 2025, with mandatory transmission required for new registrants by April 2026. The requirement uses the Peppol standard and exempts overseas entities and reverse‑charge‑only registrants.

Namibia’s 2026/27 Budget confirms a mandatory e-invoicing regime for VAT‑registered businesses, with a likely launch in 2028 or later. The system will be a real‑time clearance model integrated with the Integrated Tax Administration System (ITAS), initially covering B2B transactions and potentially expanding to B2C retail. The current VAT rate remains 15%.

The Inland Revenue Authority of Singapore (IRAS) has announced a phased rollout of e-invoice data reporting via its InvoiceNow network, based on the Peppol standard. The schedule requires domestic-only businesses to adopt the system from 1 April 2026, with subsequent deadlines for new and existing GST registrants up to 2031. The move also confirms the adoption of Peppol for B2G transactions, expanding the platform’s use for cross‑border invoicing.