E-Invoicing in Oman, Explained
A practical guide to Fawtara, the Oman Tax Authority’s national e-invoicing programme, and the Peppol-based five-corner model on which it is built.
Key Dates Under Decision No. 189/2026
An E-Invoice Is Data, Not a Document
E-invoicing means issuing, exchanging and receiving invoices as structured data that software can read directly, rather than as documents someone has to read and re-key.
A PDF attached to an email is not an e-invoice — the Oman Tax Authority states this explicitly in its Fawtara FAQ. In a structured invoice, every field — supplier, buyer, each line and each tax amount — has a defined meaning, so the receiving system can validate it, match it to a purchase order and post it without manual entry.
That shared structure is what makes a national programme possible: when every invoice follows one specification, the Tax Authority receives consistent data from every business in the country.
PDF or Paper Invoice
UnstructuredStructured E-Invoice
Machine-readableFawtara, the National E-Invoicing System
Fawtara is the Oman Tax Authority’s e-invoicing programme. It moves invoicing in the Sultanate onto a single structured format exchanged over the Peppol network, with tax data reported to the Authority as part of the same flow.
Its legal basis is Tax Authority Decision No. 189/2026, issued on 3 August 2026 and published in the Official Gazette on 9 August 2026. The decision amends the Executive Regulations of the VAT Law (Decision No. 53/2021), issued under the VAT Law promulgated by Royal Decree No. 121/2020, and sets out how electronic tax invoices are to be issued and reported, including the invoicing provisions of Article 143.
The Authority does not sit between every buyer and seller. Invoices travel directly between the trading parties through accredited service providers, while a separate tax data report reaches the Authority in parallel. This approach, known as continuous transaction control, gives the Authority near real-time visibility without becoming a bottleneck in the invoice itself.
Service providers use a service metadata publisher operated centrally by the Authority, which maintains a single authoritative register of who can receive which documents.
At a Glance
- ProgrammeFawtara, run by the Oman Tax Authority
- Legal basisDecision No. 189/2026, amending the VAT Executive Regulations
- NetworkPeppol, using a five-corner model
- SpecificationPINT OM, carried as UBL 2.1 XML
- ParticipantsVAT-registered taxable persons
- CoverageB2B and B2C supplies, including simplified invoices; government entities as specified by the Authority
- AccessThrough a service provider accredited by the Authority
- RegistryA service metadata publisher operated centrally by the Authority
How the Rollout Is Phased
Adoption is staged by size, with the largest taxable persons first. No e-invoicing obligation applies before the first mandatory date.
Programme Announced
The Oman Tax Authority announces national e-invoicing and begins publishing requirements.
Decision and Pilot
Decision No. 189/2026 is issued. A voluntary pilot runs with a group of large taxpayers selected by the Authority.
Annual Supplies Above OMR 5 Million
E-invoicing becomes mandatory for this group.
All Other VAT-registered Taxable Persons
Mandatory for taxable persons with annual supplies of OMR 5 million or less, including simplified invoices.
Oman Uses a Five-Corner Model
Peppol is usually described as a four-corner network: a supplier, its service provider, the buyer’s service provider and the buyer. Oman adds a fifth corner. As well as delivering the invoice, each access point sends a tax data report to the Oman Tax Authority.
Two Reports per Sale
A domestic sale between two VAT-registered businesses generates a report from each side. The Authority matches them using a shared invoice identifier that both providers derive from the same invoice.
Reporting, Not Approval
A positive status confirms that the report was accepted for processing. It is not a ruling that the tax treatment is correct.
Shorter Path for Exports
Where the buyer is outside the network, as with exports or consumer sales, there is no receiving provider; the flow runs from the supplier through its provider to the Authority.
Four Corners Versus Five
If you have read about Peppol elsewhere, you will have seen the four-corner diagram. Oman’s model is the same exchange, with a reporting leg added.
Four-Corner Exchange
Used where the network exists to move documents between businesses and the tax authority is not part of the exchange.
- Supplier to its service provider
- Provider to provider across the network
- Provider to buyer
- No parallel report to the tax authority
- Tax checks happen later, through audit
Five-Corner Model
The same exchange, with a tax data report sent to the Authority as the invoice moves.
- Everything in the four-corner flow
- Each access point builds a tax data report
- The report reaches the Authority over the network
- The Authority validates it and returns a status
- Near real-time visibility of B2B supplies
What Reaches the Tax Authority
The report is a separate document derived from the invoice — not the invoice sent a second time.
Published guidance calls it a Tax Data Document. It is generated from the invoice using fixed, repeatable rules, carries the original invoice inside it as the source record, and is validated against the Authority’s rules before a status is returned.
Because the sending and receiving providers both derive it from the same invoice, the Authority can match the two reports and see both sides of the transaction.
Derived from the Invoice
The provider builds the report from the invoice it has just validated, using defined rules so the result is always identical.
Sent in Parallel
The report travels to the Authority over the network while the invoice travels to the buyer.
Validated and Acknowledged
The Authority checks the report against its published rules and returns a status to the provider.
Timed by Transaction Type
Published guidance indicates that B2B data reaches the Authority in real time and consumer transactions within 24 hours. Confirm current timings in the Authority’s Fawtara FAQ and technical specification.
The Specifications Behind Fawtara
Oman does not use the European billing profile directly. It uses a national Peppol specialisation, so that invoices carry the fields Omani VAT rules require.
PINT OM
The Oman specialisation of Peppol International Invoice. It defines the content and validation rules for invoices and credit notes in the Sultanate.
UBL 2.1
The underlying XML syntax. Invoices and credit notes are carried as UBL documents; the tax report also holds the original invoice in this form.
Peppol eDelivery
The network layer that moves documents between accredited access points, with the associated delivery and status handling.
Validation Rules
Published rule sets check every invoice and report before it moves. A document that fails is rejected, not silently accepted.
Participant Identity
Each business is addressed on the network through an identifier based on its VAT number, so changing provider does not change its address.
Central Registry
The register of who can receive which documents is operated centrally by the Authority, not by individual providers.
What Fawtara Requires of a Taxable Person
VAT registration, not company size, brings a business into scope. Size only determines which of the two mandatory dates applies.
Confirm Whether You Are in Scope
E-invoicing applies to VAT-registered taxable persons. Businesses that are not VAT-registered fall outside the obligation.
Connect Through an Accredited Provider
Through the Fawtara portal, a business links to one service provider accredited by the Authority at a time, and may change provider later. The Authority publishes the current list of accredited service providers.
Issue Invoices in the Required Format
Invoices and credit notes are issued as structured XML following the Oman specification. A PDF alone does not meet the requirement.
Give Each Invoice a Unique Identifier
Every invoice needs its own identifier so that it can be matched across the exchange and the reporting leg.
Handle Consumer Sales Correctly
Guidance requires a QR code on the human-readable invoice given to consumers and does not permit consumer sales to be combined into a single consolidated invoice. Confirm the current rules in the Authority’s Fawtara FAQ.
Keep Your Records
Record retention follows the VAT Law rather than the e-invoicing rules: ten years from the end of the relevant tax year, and longer for real-estate records.
What Accreditation Involves
Access points in Oman are accredited by the Tax Authority. Published guidance describes both a company assessment and a technical one.
Registered in Oman
Registered in the Sultanate of Oman (CR No. 1669601). The Commercial Registration must cover the relevant information-technology activities.
Financial Standing
A minimum paid-up capital, with declarations on bankruptcy and legal proceedings.
Operating History
A trading record over a defined period, with a shorter requirement for holders of a Riyada entrepreneurship card.
Clear Tax Position
No outstanding tax collection against the company, and compliance with filing and payment obligations.
Technical and Security Review
Evidence that systems, controls and security arrangements meet the Authority’s requirements.
Conformance Testing
Passing the published delivery and Oman invoice test suites in the Peppol test environment before going live.
A business that meets these criteria may be accredited to act as its own service provider. Requirements are set by the Oman Tax Authority and may change; the Authority’s publications are the governing source, and it maintains the official list of accredited service providers.
First Global Link LLC and Fawtara
First Global Link LLC is registered in the Sultanate of Oman and is preparing its application for accreditation as a Fawtara e-invoicing service provider and for membership of the Peppol network. Until accreditation is granted, this page is provided as an independent guide and does not offer e-invoicing services.
- Registered in the Sultanate of Oman (CR No. 1669601)
- Commercial Registration and VAT numbers published on this site
- Application for accreditation in preparation
- Independent, informational guide
- Enquiries welcome through our contact page
Key Terms
Common Questions
Does Oman use a four-corner or a five-corner model?
Five-corner. The four corners of the Peppol exchange are the supplier, its service provider, the buyer’s service provider and the buyer. Oman adds the Tax Authority as a fifth corner, which receives a tax data report in parallel with the invoice.
Is a PDF invoice sent by email acceptable?
No. The Oman Tax Authority states in its Fawtara FAQ that a PDF is not an electronic invoice. Invoices must be issued as structured XML following the Oman specification.
When does e-invoicing become mandatory in Oman?
Under Decision No. 189/2026: from 1 April 2027 for taxable persons with annual supplies above OMR 5 million, and from 1 October 2027 for all other VAT-registered taxable persons. A voluntary pilot is running ahead of these dates. These statutory dates supersede the earlier four-phase schedule that still appears in some Tax Authority materials.
Must every business use an accredited service provider?
A taxable person connects to the network through a provider accredited by the Authority. A company that meets the accreditation criteria may be accredited to act as its own provider.
Will we need to replace our existing accounting software?
Not necessarily. What matters is that your system can produce and exchange the required structured data. Whether a change is needed depends on the software you use.
Are business-to-consumer (B2C) sales within scope?
Yes. Guidance treats consumer transactions as in scope, with a QR code on the human-readable invoice and reporting within a longer window than the real-time B2B requirement.
Are transactions with government entities within scope?
The Authority’s published materials place government institutions and entities in a later phase whose year has not been announced. Please refer to the Authority’s own publications for the position that applies to you.
Is First Global Link LLC an accredited service provider?
Not at present. The company is preparing its application for accreditation under Fawtara and for Peppol membership. Any change in status will be reflected on this page.
Questions About E-Invoicing in Oman?
Contact us. Every enquiry receives a reference number and a named contact.