Guide · Updated September 2026
ERP Compliance in Oman: VAT, WPS, Omanization & More
What Omani regulation means for your ERP, and how a well-configured system turns compliance into a by-product of daily work.
A compliant ERP in Oman calculates and reports 5% VAT, produces WPS salary files for banks, reports Omanization ratios, accounts in OMR to three decimals, keeps Commercial Registration and OCCI details on records, and can be updated as national e-invoicing requirements roll out. FizMoh configures all of this as standard on Odoo, ERPNext and custom ERP projects.
Compliance areas your ERP should cover
Always confirm current requirements with the relevant authority; regulations change.
Oman VAT (5%)
Tax codes for standard, zero-rated and exempt supplies, tax invoices with required details, and reports supporting your return. See the Oman Tax Authority for current rules.
Wage Protection System (WPS)
Payroll that outputs salary files in the format banks use for WPS transfers, with audit trails for each payroll run.
Omanization
Reports of headcount by nationality, profession and sector targets to support Ministry of Labour requirements.
Commercial Registration & OCCI
CR and Chamber of Commerce details on customer and supplier records and on documents, with licence expiry alerts.
OMR & rounding
Currency precision to three decimals (1 OMR = 1,000 baisa) and correct rounding in invoices, payments and taxes.
E-invoicing readiness
Oman is introducing national e-invoicing in phases. We design invoice data structures so the system can be updated as requirements are published.
Other requirements to plan for
- 01
Personal data protection
Oman's personal data protection framework affects how employee and customer data is stored and shared; we apply role-based access, audit trails and encryption.
- 02
Social insurance
payroll contributions for Omani employees through the Social Protection Fund are configured in payroll rules.
- 03
Arabic documents
some contracts and official documents require Arabic; bilingual templates are standard.
- 04
Retention
keep accounting records for the period required by law; we set retention and backup policies accordingly.
Authoritative sources
We recommend checking requirements directly with the regulators.
Frequently asked questions
Straight answers from our Muscat team. Still unsure? Ask us directly.
Ask on WhatsAppDoes the ERP support Oman VAT?
Yes. We configure 5% VAT with tax codes for standard, zero-rated and exempt items, compliant invoices and reports that support your VAT return.
What is a WPS file?
A salary file generated from payroll in the format banks use for Wage Protection System transfers, so wages are paid through the banking system and can be monitored.
Can the ERP report Omanization?
Yes. It reports headcount by nationality and profession and compares it to targets, supporting Ministry of Labour reporting.
Is your ERP ready for e-invoicing?
Oman is rolling out e-invoicing in phases. We structure invoice data so it can be updated as requirements are published, and we keep clients informed as details are released.
Does the ERP keep Arabic and English documents?
Yes. Invoices, quotations, contracts and reports can be produced in Arabic, English or both.
Who is responsible for compliance, us or you?
Compliance responsibility stays with your business, but a well-configured ERP makes it far easier. We configure and document the rules and update them when regulations change.
Tell us what is slowing your business down.
Free consultation. We reply within 24 hours and recommend the platform that fits your business.
Odoo, ERPNext and custom ERP for every industry in Oman and the GCC.