Oman E-Invoicing Glossary
Technical terms should not make e-invoicing difficult. Here are the words you are likely to see, explained for normal business owners.
Fawtara
Oman’s national e-invoicing initiative led by the Oman Tax Authority.
Think of it as: Oman’s programme for moving business invoicing into a standard electronic process.
OTA
Oman Tax Authority — the government authority responsible for taxation and the Fawtara programme.
It publishes the official rollout, rules and guidance.
Peppol
An international network for securely exchanging electronic business documents such as invoices.
Think of it as a secure delivery network for e-invoices.
PINT
Peppol International Invoice — a common invoice data model used as the basis for country-specific rules.
Think of it as an international invoice rulebook.
PINT-OM
The Oman-specific Peppol invoice rules used to structure an e-invoice correctly.
Think of it as the Oman edition of the invoice rulebook.
UBL
Universal Business Language — a standard way to arrange business-document data so computer systems understand it.
Normal users do not create UBL manually.
XML
A computer-readable way of storing the invoice data.
PDF is mainly for people to read; XML is designed for computers to read.
ASP
Accredited Service Provider — an approved provider that participates in the Fawtara e-invoicing process and helps validate/transmit invoices.
Think of it as the authorised electronic delivery provider for your e-invoices.
Access Point
The technical gateway used to send and receive documents through the Peppol network.
Your service provider normally handles this.
UUID
A unique digital identifier for an electronic document.
Think of it as the invoice’s unique digital fingerprint.
SMP
Service Metadata Publisher — a directory that tells the Peppol network how a business can receive electronic documents.
A normal business owner does not manage this manually.
SML
Service Metadata Locator — a service that helps Peppol locate the correct directory information for a participant.
Think of it as the directory that points to the right directory.
TDD
Tax Data Document — structured tax data used for reporting through the Oman e-invoicing architecture.
Your compliant software/service-provider layer handles the technical creation and exchange.
B2B
Business-to-Business — a sale from one business to another business.
Example: a software company invoices a trading company.
B2C
Business-to-Consumer — a business sells directly to an individual consumer.
Example: a restaurant or retail sale to a normal customer.
B2G
Business-to-Government — a business supplies goods or services to a government entity.
Example: a supplier invoices a ministry.
Self-billing
A process where the buyer creates the invoice on behalf of the supplier under the applicable rules.
The normal direction is seller → invoice; self-billing reverses who prepares the invoice.
Credit Note
A document used to reduce or reverse all or part of an earlier invoice.
Example: goods worth OMR 20 are returned from an OMR 100 invoice.
Debit Note
A document used when an amount related to an earlier transaction needs to be increased under the applicable rules.
Simple memory aid: credit note ↓ amount; debit note ↑ amount.
- Oman Tax Authority — E-invoicing / Fawtara pages and FAQs
- OpenPeppol — Oman PINT technical specifications
Last regulatory review for this Release 1 draft: 9 August 2026. This independent guide is not affiliated with the Oman Tax Authority. Always verify critical compliance decisions against current OTA publications.