Accredited Service Providers (ASP) — Explained Simply
Your invoicing software creates the invoice. An accredited service provider helps validate and exchange it through the Fawtara network.
What does an ASP do?
In OTA's 5-corner model, service providers validate and exchange e-invoices between taxpayers and report specified tax data to OTA.
Where is the official list?
OTA maintains a live Accredited Service Providers directory on the Fawtara portal. Because the list can change, the official directory should remain the source of truth.
What should an SME compare?
Integration
Does it connect easily to your invoicing, POS or accounting software?
Commercial model
Monthly subscription, per-invoice fee or another model. OTA says provider pricing is commercially determined by each provider.
Support
Onboarding, validation errors, downtime support and response time.
- Oman Tax Authority — Fawtara / E-Invoicing FAQs and taxpayer guidance
- Fawtara Portal — Accredited Service Providers directory
- OpenPeppol — Oman PINT specifications
Last regulatory review: 10 August 2026. Inoman is an independent guide and is not affiliated with the Oman Tax Authority. Requirements can change; verify critical compliance decisions against current official publications.