E-invoicing mandate — Oman
The format is prescribed, the route is not: the invoice must be structured, but which channel carries it to the recipient is left to the parties. A format tool is sufficient here as well.
The stages over time
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8/1/2026
Oman · between businesses in force
Oman runs a 5-corner model: accredited service providers exchange the invoice between issuer and recipient and report the tax data to the authority; XML is mandatory, and in business-to-business traffic in real time. ⚠ The e-invoicing regulation has not yet been issued, and on one of its own pages the authority calls the first wave a pilot — the dates come from its FAQ.
Threshold: one hundred individually selected large VAT-registered companies.
Legal basis: Oman Tax Authority — Fawtara, Rollout 1 · Last reviewed: 10/27/2026 -
2/1/2027 · in 97 days
Oman · between businesses next deadline
Oman runs a 5-corner model: accredited service providers exchange the invoice between issuer and recipient and report the tax data to the authority; XML is mandatory, and in business-to-business traffic in real time. ⚠ The e-invoicing regulation has not yet been issued, and on one of its own pages the authority calls the first wave a pilot — the dates come from its FAQ.
Threshold: all large VAT-registered companies.
Legal basis: Oman Tax Authority — Fawtara, Rollout 2 · Last reviewed: 10/27/2026 -
8/1/2027 · in 278 days
Oman · between businesses enacted
Oman runs a 5-corner model: accredited service providers exchange the invoice between issuer and recipient and report the tax data to the authority; XML is mandatory, and in business-to-business traffic in real time. ⚠ The e-invoicing regulation has not yet been issued, and on one of its own pages the authority calls the first wave a pilot — the dates come from its FAQ.
Threshold: all remaining VAT-registered taxpayers.
Legal basis: Oman Tax Authority — Fawtara, Rollout 3 · Last reviewed: 10/27/2026
Platforms and authorities
Fawtara · Oman Tax Authority · Service Provider
What Invoiceflair can do — Oman
Oman: the engine currently carries no national format of its own. Validating, viewing and converting the European formats remains available — only a country-specific mandatory format is missing.
Stated limit: Invoiceflair creates, validates and reads formats. It is not a Peppol access point and not a clearing service — it does not perform transmission to an authority's platform.
Not legal or tax advice
This overview is a technical compilation of publicly available sources and is no substitute for legal, tax or business advice. Only the applicable legislation in its official wording governs; have your individual case assessed by your tax adviser or legal counsel. Despite careful maintenance, no warranty is given as to accuracy, completeness or currency. Administrator.at B2B GmbH accepts no liability for decisions based on this information.