E-invoicing FAQs – Oman Tax Authority (Fawtara)
- A clearance-based digital invoicing model – Oman’s e-invoicing system (“Fawtara”) requires invoices to be issued electronically in a standardised digital format and transmitted automatically between seller, buyer, and the Tax Authority for real-time validation, replacing paper and PDF invoices. Each e-invoice is electronically certified and carries a unique verification code, enabling instant reporting and archiving. The stated objectives are to improve transaction efficiency, ensure transparency and tax compliance, and prevent fraudulent invoicing. [tms.taxoman.gov.om]
- Four-phase implementation timeline – The system rolls out in four phases: Phase 1 covers the first 100 large VAT-registered companies, beginning August 2026; Phase 2 extends to all large VAT-registered companies from February 2027; Phase 3 captures all remaining VAT-registered taxpayers (including SMEs) from August 2027; and Phase 4 covers government institutions and entities on a date yet to be announced. Taxpayers are selected based on revenue size, annual invoice volume, and technical readiness. [tms.taxoman.gov.om]
- Voluntary early adoption and a five-party operating model – Companies not yet targeted may voluntarily adopt the system early, with support provided by the Tax Authority. E-invoices are issued through an electronic operating model linking five participants—the supplier, the supplier’s service provider, the buyer’s service provider, the buyer, and the Oman Tax Authority (OTA)—ensuring secure, standardised issuance. Direct business benefits cited include lower operating costs, simplified auditing, improved data accuracy, reduced errors, system integration, and secure archiving. [tms.taxoman.gov.om]














