Oman mandates electronic tax invoicing
Analysis based on 7 articles · First reported Aug 09, 2026 · Last updated Aug 10, 2026
The mandate will increase compliance costs for VAT-registered businesses in Oman, particularly those needing to upgrade their invoicing systems and engage accredited service providers. It is expected to improve tax administration efficiency and data quality, potentially boosting government revenue collection and supporting fiscal transparency.
Oman's Tax Authority issued Decision No. 189/2026 amending the Executive Regulations of the Value Added Tax Law, mandating electronic tax invoicing for all VAT-registered companies. The system requires invoices to be issued, transmitted, and stored in an approved XML format via accredited e-invoicing service providers, ensuring data integrity and automatic processing. Implementation will occur in two phases: from April 1, 2027, for companies with annual supplies exceeding OMR 5 million, and from October 1, 2027, for those below that threshold. A voluntary pilot involving 100 companies will begin at the end of August 2026. The initiative aims to enhance tax compliance, transparency, and efficiency, supporting Oman Vision 2040 and the National Digital Transformation Strategy.
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