The Sultanate of Oman Tax Authority (OTA) is advancing its national e-invoicing initiative under the Fawtara program with the launch of the Accredited Service Provider (ASP) registration framework, taxpayer onboarding activities, and the confirmation of a Peppol-based 5-Corner Model for invoice exchange.
Oman’s e-invoicing framework requires invoices to be created, exchanged, and reported in a structured electronic format through accredited service providers. With Phase 1 scheduled to begin in August 2026 and the mandate expanding progressively through 2028, organizations must begin assessing ERP readiness, billing systems, tax determination logic, data quality, integration requirements, and compliance processes.
To support businesses through this transition, SunTec has partnered with International Information Technology Co. LLC (IITC), to deliver an accredited access point that serves as a secure gateway for compliant e-invoice exchange. This strategic alliance combines proven e-invoicing and compliance expertise with strong local market knowledge to help organizations prepare for Oman’s evolving requirements, while minimizing operational disruption and implementation risk.
The mandate is expected to progressively cover:
Oman has formally confirmed the adoption of a Peppol-aligned 5-Corner Model for e-invoicing. This architecture enables secure invoice exchange, while providing the OTA with visibility into invoice data.
The process is expected to work as follows:
This model differs from centralized clearance models and instead emphasizes interoperability, standardized invoice exchange, and seamless integration between businesses, service providers, and the tax authority.
The OTA has already published foundational specifications, implementation guidance, and a draft data dictionary to help businesses prepare.
Key requirements emerging from the framework include:
The publication of the PINT-OM standard and related data dictionaries signals Oman’s commitment to a highly standardized and interoperable e-invoicing ecosystem aligned with international best practices.
SunTec Xelerate e-Invoicing enables organizations to comply with e-invoicing mandates as it supports invoice creation, validation, exchange, reporting, archiving, and compliance management, while integrating seamlessly with existing ERP, billing, and finance systems.
Built for complex enterprise environments, SunTec helps organizations:
| Phase | Timeline | Scope |
|---|---|---|
| Preparation Phase | 2025–2026 | Technical specifications, ASP accreditation, testing, onboarding |
| Phase 1 | August 2026 | 100 selected large VAT-registered taxpayers |
| Phase 2 | February 2027 | Remaining large VAT-registered taxpayers |
| Phase 3 | August 2027 | Remaining VAT-registered taxpayers, including SMEs |
| Phase 4 | 2028 | Government entities and completion of rollout |
Current OTA documentation indicates that organizations will need to support:
Many organizations mistakenly view e-invoicing as a tax project. In reality, Oman’s mandate is a broader business transformation initiative affecting:
Organizations operating multiple ERP systems, legacy billing platforms, or high-volume invoicing environments are likely to face the most significant implementation challenges and should begin assessing readiness as early as possible.
