🇴🇲 Oman — OTA VAT Ready
Oman VAT Invoicing
built for the OTA
Issue bilingual Tax Invoice / فاتورة ضريبية in seconds. 5% OTA VAT, OMR baisa precision, OTA VATIN on every invoice, free zone zero-rating, quarterly VAT return export, and a Fawtara e-invoicing pipeline ready for when the mandate goes live.
5%
standard VAT rate
OMR
baisa precision (3 dp)
OTA
VAT registration ready
Fawtara
e-invoice mandate ready
Free zone support
Zero-rated automatically when branch is marked as free zone
Duqm SEZSalalah Free ZoneSohar Free ZoneAl Mazunah Free Zone
Everything OTA requires
Built on the Oman VAT Law 2020 — not retrofitted from a generic template.
Oman Tax Invoices
Bilingual Tax Invoice / فاتورة ضريبية, 5% OTA VAT, OTA VATIN (OM + 10 digits) on every invoice. Compliant with the Oman VAT Law 2020.
OMR Baisa Precision
OMR stored and displayed to 3 decimal places (baisa). No rounding errors on line-item accumulation — critical for high-value B2B invoices.
Free Zone Support
Duqm, Salalah, Sohar, and Al Mazunah free zone invoices correctly zero-rated. Supplier free-zone flag sets the rate automatically.
OTA VAT Return Export
Quarterly VAT return CSV matching OTA filing boxes — output VAT, input VAT, and net payable. Ready to upload to the Oman e-tax portal.
Fawtara E-Invoicing
Structured e-invoicing pipeline in place ahead of the OTA Fawtara mandate. Enable when OTA publishes the production API credentials.
InvoiceChaser
6-step reminder sequence. Skips Oman public holidays and weekends.
Client Portal
Magic-link access. Customers view, pay, and dispute without creating an account.
8 Built-in Reports
Sales, aging, collection, customer ledger, VAT summary, statement of account — filterable by period.
Payment Tracking
Record bank transfer, card, cheque. Auto-allocate partial payments across invoices.
Public API
REST API + webhooks for ERP sync, bank reconciliation, and custom portal integrations.
Audit-Ready
Immutable audit log, role-based access, 10-year document retention as required by OTA.
Credit & Debit Notes
Compliant reversal documents linked to the original invoice. VAT correctly adjusted in the return.
Recurring Invoices
Auto-generate invoices on a schedule — weekly, monthly, or any custom cadence.
Multi-Org
Manage multiple Omani entities under one login. Separate OTA VATIN per entity.
Fawtara e-invoicing
Ready for the OTA Fawtara mandate
Oman Tax Authority is developing Fawtara — a structured e-invoicing system similar to Saudi Arabia's ZATCA Phase 2 and Bahrain's Fawtara. Oris Invoice has the full submission pipeline in place: OTA VATIN validation, invoice XML generation, status lifecycle, and a per-submission audit trail.
When OTA publishes the production API credentials and mandate timeline, your Oman invoices will flow through Fawtara with a single toggle — no migration, no new software.
OTA VATIN (OM + 10 digits) on every invoice
Structured XML generation pipeline
SUBMITTED → ACCEPTED status lifecycle
Audit log per e-invoice submission
OTA webhook callback handler
Enable with a single setting toggle
How we compare
| Feature | Oris Invoice | Zoho Books | Xero |
|---|---|---|---|
| Oman Tax Invoice (bilingual) | — | ||
| 5% OTA VAT correct calculation | |||
| OMR 3-decimal baisa precision | — | — | |
| Free zone zero-rating | — | — | |
| OTA VAT return CSV export | — | — | |
| Fawtara e-invoicing pipeline | — | — | |
| Free tier (no credit card) | — | — | |
| API + webhooks |
Frequently asked
Is Oris Invoice compliant with the Oman VAT Law 2020?
Yes. Every tax invoice includes the supplier's OTA VATIN (OM + 10 digits), customer's OTA VATIN (if registered), tax date, and line-level VAT breakdown as required by Article 88 of the Oman VAT Law.
What is the OTA VATIN format?
The Oman Tax Authority VATIN is OM followed by 10 digits (e.g., OM1234567890). Oris Invoice validates this format on entry and prints it on every tax invoice.
How does free zone invoicing work?
Supplies from Duqm, Salalah, Sohar, and Al Mazunah free zones are treated as designated zones under the Oman VAT Law — zero-rated or outside scope depending on the supply type. Mark your branch as a free zone in settings and the correct rate applies automatically.
What is the Fawtara e-invoicing mandate?
Fawtara is the OTA's planned structured e-invoicing system. The production API and mandate timeline are not yet published. Oris Invoice has the full pipeline in place and will enable live submission as soon as OTA publishes sandbox credentials.
Why does OMR need 3 decimal places?
Omani Rial is divided into 1,000 baisa. Storing OMR as 2-decimal (like USD) produces systematic rounding errors. Oris Invoice stores all OMR amounts in the smallest unit (baisa = integer) and displays them to 3 decimal places.
Is there a free tier?
Yes. The Starter tier is free, supports up to 30 invoices per month, and includes OMR currency, OTA VATIN fields, free zone flag, and bilingual PDF output. No credit card required.
Stay ahead of the OTA mandate
Get compliance updates and a heads-up when Fawtara goes live — before your competitors.
Start issuing Oman Tax Invoices today
Free tier · No credit card · OTA VAT compliant from day one
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