Fawtara E-invoicing

Fawtara e-invoicing in Oman: deadlines, requirements and how to get ready

Every VAT-registered business in Oman will have to issue and receive invoices electronically through Fawtara, the Tax Authority’s e-invoicing system. The pilot with about 100 of the largest taxpayers started in August 2026. Mandatory phases begin on 1 April 2027 and 1 October 2027. GSPU helps you assess your systems, choose a service provider and go live without disrupting your billing.

Key dates

Phase	Who	Date
Pilot	About 100 of the largest VAT-registered taxpayers, selected by the Tax Authority	August 2026
Phase 1	Suppliers with annual supplies above OMR 5 million	1 April 2027
Phase 2	All other VAT-registered businesses, including SMEs	1 October 2027
B2G	Supplies to government entities	February 2028

The Tax Authority revised these dates by Decision No. 189/2026 on 9 August 2026. [Check the Tax Authority portal for any further change before publishing.]

How Fawtara works

Structured invoices: invoices are created in a standard digital format (PINT OM, based on Peppol), not as PDFs or paper.
Accredited service providers: each business connects through an accredited service provider, which exchanges invoices with the buyer’s provider and reports data to the Tax Authority (the “five-corner” model).
Validation: invoice data is checked before or as it reaches the buyer.
Archiving: e-invoices must be kept for 10 years.

What to do now

Map your invoicing: systems, volumes, invoice types, credit notes, and whether your sales are B2B, B2C or B2G.
Check your data: customer VAT numbers, product codes and tax codes must be complete and correct.
Talk to your ERP vendor: can it produce the required format and connect to a service provider?
Choose an accredited service provider: compare cost, integration and support.
Test before your deadline: run parallel invoicing and fix rejections.
Train your team: sales, finance and customer service.

How GSPU helps

Readiness assessment: a gap report on your systems, data and processes, with a costed action plan.
Service provider selection: independent comparison of accredited providers for your size and system.
VAT alignment: we fix VAT coding and master data before go-live, so rejected invoices do not hold up billing.
Go-live support: testing, first-month review and reconciliation of e-invoices to your VAT return.
SME package: a fixed-fee readiness pack for businesses in the October 2027 phase. [Confirm fee.]