OMAN VAT GUIDE
VAT Registration in Oman: Thresholds, Documents and Filing Duties
Oman VAT registration depends on taxable supplies, the status of the supplier and the rolling 12-month registration tests. The standard VAT rate is 5%. For a resident business, mandatory registration generally starts at OMR 38,500 of annual taxable supplies, while voluntary registration may be available from OMR 19,250. This article was reviewed on 16 September 2026.
VAT thresholds
| Position | General threshold | Result |
|---|---|---|
| Mandatory registration | OMR 38,500 or more, or expected to reach it | The resident business generally must register |
| Voluntary registration | OMR 19,250 or more but below OMR 38,500 | The business may apply if the legal conditions are met |
| Below voluntary threshold | Below OMR 19,250 | Normal voluntary registration is generally unavailable |
The test is based on taxable supplies rather than net profit. Standard-rated and zero-rated supplies require separate classification from exempt supplies. The rolling tests mean that a business should monitor both supplies already made and supplies expected in the relevant future period.
Who should review registration?
- Businesses selling goods or services from Oman
- E-commerce and digital businesses with Oman taxable supplies
- Importers and distributors that need to understand import VAT
- Businesses approaching the mandatory or voluntary threshold
- Non-residents making taxable supplies in Oman
- Groups that need to consider registration, grouping or changes in taxable activity
A non-resident making taxable supplies in Oman can have different registration obligations and should not assume that the resident thresholds apply in the same way. The place of supply, customer, goods or service and import arrangements should be checked.
Information and documents commonly requested
- Commercial Registration and legal-entity information
- Tax Identification Number and income-tax registration details
- Business activity, products and service descriptions
- Sales forecasts and the rolling taxable-supply calculation
- Contracts, invoices and customer or supplier information
- Import, customs and warehouse information where relevant
- Bank details and authorised-person information
- Evidence supporting the expected effective date
What happens after VAT registration?
Registration creates continuing duties. The business may need to charge 5% VAT on taxable supplies, issue compliant tax invoices, separate output and input VAT, file periodic returns, pay the net amount due and keep the supporting records. The registration certificate does not decide the VAT treatment of every product or transaction.
VAT returns
VAT periods are normally quarterly: January to March, April to June, July to September and October to December. The return and payment are normally due within 30 days after the tax period ends. The return may include taxable sales, exempt sales, imports, output VAT and eligible input VAT.
Records
Keep tax invoices, accounting records, customs documents, credit notes, import evidence and calculations. VAT records are generally retained for 10 years, with a longer period commonly applying to real-estate records.
Fawtara
Electronic invoicing is being introduced in stages. See the Fawtara Oman 2027 guide for the current implementation dates and requirements.
Registration errors that create later problems
- Counting profit instead of taxable supplies
- Ignoring the expected-turnover test
- Putting zero-rated and exempt supplies in the same category
- Failing to review import VAT and place-of-supply rules
- Registering late and starting invoices without a clear effective date
- Assuming VAT registration also completes income-tax registration
- Failing to maintain records for input-VAT claims
Deregistration and changes
When a business stops making taxable supplies, falls below the legal conditions or changes its activity, deregistration may need to be reviewed through the Tax Authority process. Deregistration is not automatic merely because sales have fallen, and it should be considered with final returns, adjustments, records and any remaining assets or stock.
Frequently asked questions
Is VAT calculated on profit?
No. Registration thresholds are based on taxable supplies, not net profit.
Can a business register voluntarily?
Voluntary registration may be available from OMR 19,250 where the legal conditions are met.
Does every supply count toward the threshold?
No. Taxable, zero-rated and exempt supplies require different treatment. The exact activity and place of supply should be reviewed.
Does VAT registration replace income-tax registration?
No. Income-tax registration and VAT registration are separate obligations.
