Tax Disputes in Oman (2026 Legal Guide) — Rules & Requirements
About this article
Sourced from Omani royal decrees, ministerial decisions, and the Basic Statute of the State. Written in plain language for general understanding — this is educational content, not legal advice. Our editorial standards
What is this right?
If you disagree with a tax assessment, Oman provides a structured dispute resolution process through the Tax Authority:
- Objection: You can file a written objection with the Tax Authority of Oman within 45 days of receiving an assessment notice.
- Tax Committee: If the objection is not resolved, the case goes to the Tax Committee, an independent body that reviews disputes between taxpayers and the Tax Authority.
- Court appeal: If you disagree with the Tax Committee's decision, you can appeal to the Primary Court and then to higher courts.
- Payment pending dispute: You may be required to pay the undisputed portion of the tax while the dispute is pending.
When does it apply?
- You have received a tax assessment from the Tax Authority of Oman that you believe is incorrect.
- The Tax Authority has imposed penalties that you want to challenge.
- You have been denied a refund or exemption that you believe you are entitled to.
What to Do If You Disagree With a Tax Authority Assessment in Oman
- File your objection within 45 days — do not miss the deadline.
- Include detailed grounds for your objection with supporting documents and calculations.
- Engage a tax adviser or lawyer experienced in Oman tax disputes.
- If the objection fails, escalate to the Tax Committee promptly.
What should you NOT do?
- Do not ignore an assessment notice — it becomes final if you do not object within 45 days.
- Do not refuse to pay the undisputed amount while fighting the disputed portion.
- Do not attempt to resolve the dispute informally without filing a proper written objection — verbal discussions do not preserve your rights.
About Tax Rights in Oman
You pay no personal income tax in Oman. Businesses face 15% corporate income tax on profits under the Income Tax Law (Royal Decree 28/2009), with a small business exemption under OMR 30,000. 5% VAT applies to most goods and services under Royal Decree 121/2020 — you must register if turnover exceeds OMR 38,500. The Tax Authority of Oman runs everything. Withholding tax of 10% applies to non-resident royalties and management fees. Free zones (Duqm, Sohar, Salalah, Al Mazunah) get tax holidays. Object to assessments within 45 days, then appeal to the Tax Committee.
Common Questions
What is the tax dispute resolution right in Oman?
If you disagree with a tax assessment, Oman provides a structured dispute resolution process through the Tax Authority:Objection: You can file a written objection with the Tax Authority of Oman within 45 days of receiving an assessment notice.Tax Committee: If the objection is not resolved, the case goes to the Tax Committee, an independent body that reviews disputes between taxpayers and the Tax Authority.Court appeal: If you disagree with the Tax Committee's decision, you can appeal to the Primary Court and then to higher courts.Payment pending dispute: You may be required to pay the...
When does it apply — tax dispute resolution?
You have received a tax assessment from the Tax Authority of Oman that you believe is incorrect.The Tax Authority has imposed penalties that you want to challenge.You have been denied a refund or exemption that you believe you are entitled to.
What should I do if I receive a tax assessment from the Tax Authority of Oman that I believe is wrong?
File your objection within 45 days — do not miss the deadline.Include detailed grounds for your objection with supporting documents and calculations.Engage a tax adviser or lawyer experienced in Oman tax disputes.If the objection fails, escalate to the Tax Committee promptly.
What should you NOT do — tax dispute resolution?
Do not ignore an assessment notice — it becomes final if you do not object within 45 days.Do not refuse to pay the undisputed amount while fighting the disputed portion.Do not attempt to resolve the dispute informally without filing a proper written objection — verbal discussions do not preserve your rights.