Oman e-Invoicing News and Updates
Every Oman e-invoicing change recorded here: 6 updates, newest first, each cited to its official source. Last change logged 9 August 2026.
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August 2026
Oman
New Mandate
Decision No. 189/2026 Sets Legal E-Invoicing Dates of April and October 2027
Oman's Tax Authority issued Decision No. 189/2026 on 9 August 2026, amending the Executive Regulations of the VAT Law. The replaced Article 143 requires the tax invoice to be issued, sent and stored in an approved, secured electronic format with a unique number for each invoice, covering supplies including those to persons not subject to tax, deemed supplies and consideration received before the supply date. Invoices carry XML and pass between seller and buyer systems through accredited service providers; paper invoices, PDFs and emailed images of invoices no longer qualify. New Articles 143bis, 143bis1 and 143bis2 add the licensed provider list, the taxpayer's system security duties and a discretionary exemption granted by the Chairman. The obligation starts on 1 April 2027 for taxpayers with annual supplies above OMR 5 million and on 1 October 2027 for those at or below, preceded by a pilot of 100 companies from August 2026. These dates supersede the four-phase August 2026, February 2027 and August 2027 schedule the Tax Authority still publishes on its e-invoicing FAQ.
June 2026
Oman
Technical Update
Fawtara Portal Opens Taxpayer Linking and Confirms B2C Scope
The Oman Tax Authority updated its Fawtara FAQ on 30 June 2026 and published the Service Provider and Taxpayer Association Management User Manual, so taxpayers can now connect to accredited service providers through the Fawtara Portal and the centralised SMP. The update confirms that B2C is implemented at the same time as B2B and B2G, with B2C tax data due within 24 hours against real time for B2B, that XML is the mandatory structured format and a PDF invoice is not an e-invoice, and that accreditation requires passing the eDelivery and PINT OM test suites. Archiving stays with the taxpayer under the VAT Law. E-invoicing regulations have still not been issued.
March 2026
Oman
Timeline Update
Oman Tax Authority Launches Fawtara Accreditation Portal
The Oman Tax Authority (OTA) launched the first release of the Fawtara accreditation portal in March 2026, marking the start of the Service Provider Registration phase. OTA published version 1.0 of the Service Provider Registration User Manual (Arabic and English) and conducted Go-Live Drop In Sessions on 17, 26, and 31 March 2026. This follows the OTA's approval as a Peppol Authority on 7 January 2026, confirming the Peppol 5-corner model as the backbone of the national e-invoicing system. Phase 1 pilot with 100 large VAT-registered companies remains scheduled for August 2026.
January 2026
Oman
Technical Update
Oman Tax Authority Becomes Peppol Authority
OpenPeppol approved OTA application for Peppol Authority status, enabling oversight of service providers and alignment with Fawtara 5-corner model.
Oman
New Mandate
B2B
OTA Confirms Peppol 5-Corner Model for Fawtara Program
Oman Tax Authority confirms adoption of the Peppol 5-corner model for the Fawtara e-invoicing program. Phased rollout begins August 2026 with 100 large VAT-registered companies, expanding to all taxpayers by August 2028. Technical standards include XML and PDF/A-3 formats with mandatory accredited service provider integration.
November 2025
Oman
New Mandate
E-Invoicing System Announced
Oman announced a phased e-invoicing system under the Fawtara programme, with a pilot phase for selected large VAT-registered companies from August 2026 and later phases to follow.
News from other countries
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United Arab Emirates
Brazil
France
Côte d'Ivoire
Germany
Slovakia
China
Denmark
Spain
Malaysia
Poland
Romania
Argentina
Chile
Greece
Sri Lanka
Malawi
Vietnam
Belgium
Burundi
Republic of the Congo
Croatia
Indonesia
North Macedonia
Mauritius
Costa Rica
Dominican Republic
United Kingdom
Ireland
Italy
Kazakhstan
Luxembourg
Moldova
Niger
Portugal
Russia
Tajikistan
Turkey
Bolivia
Estonia
Fiji
Hungary
India
Iran
Laos
Liberia
Netherlands
New Zealand
Philippines
Puerto Rico
Serbia
Singapore
Sierra Leone
Vanuatu