When Oman introduced economic substance regulations (ESR) in 2020, it joined a global shift away from letterbox companies: entities incorporated in low-tax jurisdictions with no genuine operations there. The regulations, issued under Royal Decree No. 128/2020, require any Omani-registered entity or branch that conducts one of nine "Relevant Activities" to demonstrate it has adequate economic substance in Oman — real employees, real premises, genuine management and decision-making. Failing the substance test can result in penalties up to OMR 100,000 for repeat failures (OMR 50,000 for first-year non-compliance) and information exchange with foreign tax authorities. This guide covers which activities trigger ESR, what substance is required, and how to file the annual notification with the OTA.
Key Takeaways- Oman's ESR framework (Royal Decree No. 128/2020, OTA) applies to entities conducting any of 9 defined Relevant Activities — regardless of tax residency or profit level- The three-part substance test requires: management and direction in Oman; core income-generating activities performed in Oman; adequate employees, premises, and expenditure relative to activity level- Annual ESR notification must be filed with the OTA; entities that fail the substance test must file a detailed ESR report- Penalties for non-compliance reach up to OMR 100,000 for repeat failures (OMR 50,000 for first-year non-compliance) and include mandatory information exchange with the foreign tax authority where the entity's beneficial owner is resident
What Are Economic Substance Regulations and Why Do They Apply in Oman?
In 2019, the OECD's Forum on Harmful Tax Practices (FHTP) identified substance requirements as a key element of countering BEPS — the practice of eroding tax bases through profit shifting to low-tax jurisdictions. As part of Oman's commitment to the OECD/G20 Inclusive Framework on BEPS, and following engagement with the EU Code of Conduct Group on Business Taxation (OECD BEPS, "Forum on Harmful Tax Practices," 2019), Oman issued its ESR framework under Royal Decree No. 128/2020 in November 2020.
The regulations ensure that entities registered in Oman that perform Relevant Activities are actually located there — with real people making real decisions — rather than simply booking income in Oman for tax purposes while actual business is conducted elsewhere.
An important framing point: ESR doesn't require your entire business to be run from Oman. It requires the *core income-generating activities* of the Relevant Activity to be conducted in Oman. A holding company that holds shares in subsidiaries must demonstrate its board meetings and investment decisions happen in Oman, but doesn't need to have its manufacturing or distribution in Oman. The test is activity-specific — you only need substance for the activities that generate income in Oman.
Which Activities Are "Relevant Activities" Under Oman ESR?
Nine categories of Relevant Activities are defined in the ESR regulations. If your entity conducts any of these, ESR applies:
- Banking business — regulated deposit-taking and lending activities
- Insurance business — underwriting risks, providing insurance or reinsurance
- Investment fund management — managing collective investment schemes, funds, or portfolios
- Finance and leasing — providing finance, credit facilities, or leasing arrangements (not banking)
- Headquarters business — providing managerial, administrative, or support services primarily to affiliates
- Shipping business — operating ships for transportation of passengers or cargo internationally
- Holding company business — holding equity interests in subsidiaries or other entities
- Intellectual property business — holding, exploiting, or licensing intellectual property including patents, trademarks, and software
- Distribution and service centre business — acting as a distribution hub or service centre for a group, procuring goods or services from affiliates and reselling/delivering to customers
The most common categories in Oman's business environment are holding company business and headquarters business — particularly for regional structures that use an Oman entity as a holding vehicle or management hub for Gulf operations.
What Is the Substance Test for Each Relevant Activity?
All Relevant Activities must satisfy three core substance requirements — though the specific application of each requirement differs by activity type.
The Three-Part Substance Test
Part 1: Management and Direction in Oman. The entity must be managed and directed from Oman. This typically requires:
- Board meetings (or equivalent governance meetings) held in Oman, with a quorum of directors physically present
- Key management decisions made in Oman — for example, strategic business decisions, major contracts, risk management decisions
- Minutes and records evidencing that decisions were actually made at Oman-based meetings
Part 2: Core Income-Generating Activities in Oman. The activities that directly produce the entity's income must be performed in Oman. What constitutes a "core" activity varies:
- For holding companies: making equity investment decisions, managing the portfolio, receiving and deciding what to do with dividends
- For headquarters businesses: taking and implementing decisions on the groups' overall strategies and policies, providing senior management to affiliates
- For IP businesses: research, development and creation of IP; making decisions relating to IP enhancement, protection, or exploitation (this is the highest-risk category under global BEPS scrutiny)
Part 3: Adequate Employees, Premises, and Expenditure. The entity must have:
- An adequate number of qualified employees in Oman for the activity performed
- Adequate physical premises in Oman (office space, facilities)
- Adequate operating expenditure incurred in Oman
"Adequate" is assessed relative to the nature and scale of the activity. A small holding company holding two subsidiaries can satisfy the test with fewer employees than a large fund management entity.
The IP business category carries the most regulatory risk. Under BEPS Action 5, IP regimes are scrutinised for whether the entity performing the activity developed the IP or merely holds it. If an Oman entity holds a patent developed entirely by a foreign group company and just receives royalty income, it'll struggle to pass the substance test even with employees and premises — because the core income-generating activity (R&D) happened elsewhere.
Who Is Exempt from Oman ESR?
The ESR regulations provide an exclusion for investment funds listed on a recognised exchange and certain other entities. More practically, the regulations include a "domestic" exclusion: entities whose gross income from the Relevant Activity is entirely sourced from Oman and that are not part of a multinational group are not subject to the full substance requirements.
The domestic exclusion is designed to target intra-group profit shifting, not ordinary Oman businesses. An Oman-registered holding company that holds only Oman subsidiaries with no foreign-parent structure is less likely to be the focus of the regulations than an Oman entity inserted into a regional group structure.
Confirm whether an exclusion applies with your tax adviser — the exclusion conditions are specific and must be documented.
How Do You File the Annual ESR Notification?
All entities that conduct a Relevant Activity — whether or not they pass the substance test — must file an annual ESR notification with the OTA.
Filing timeline: The notification must be filed within 3 months after the entity's financial year-end. For a December year-end, this means by 31 March.
Notification content:
- Confirmation that the entity conducts (or does not conduct) a Relevant Activity
- If it conducts a Relevant Activity: a preliminary assessment of whether the substance test is met
If the substance test is NOT met: The entity must also file an ESR report within 6 months of the financial year-end (by 30 June for December year-ends). The ESR report requires detailed disclosure of:
- The nature and level of activities conducted in Oman
- Employees numbers and qualifications
- Premises and assets in Oman
- Operating expenditure incurred in Oman
- Details of any related-party transactions with affiliates
The OTA then forwards the ESR report to the tax authority in the jurisdiction where the entity's beneficial owner or controlling parent is resident — enabling that authority to assess whether profit has been incorrectly attributed to Oman. Entities that are not yet registered for corporate tax should also see the Oman corporate tax registration guide to ensure all OTA registration obligations are met.
What Are the Penalties for ESR Non-Compliance?
The ESR regulations prescribe escalating penalties:
| Non-compliance | Penalty |
|---|---|
| Failure to file notification | Up to OMR 10,000 |
| Failure to file ESR report | Up to OMR 50,000 |
| Providing inaccurate information | Up to OMR 50,000 |
| Repeat failure (second year) | Up to OMR 100,000 |
Beyond financial penalties, the OTA can share information with foreign tax authorities regardless of whether the entity filed a notification — the exchange is triggered by the OTA's own risk assessment, not only by the entity's filing. This means a business that ignores ESR entirely may face both Oman penalties and a tax inquiry in the beneficial owner's jurisdiction.
How Does Oman ESR Compare to UAE, Bahrain, and Saudi Arabia?
The GCC adopted substantively similar ESR frameworks in 2019–2020 following common EU pressure. All four use the same nine Relevant Activity categories and a three-part substance test. Key differences:
UAE ESR (Cabinet Resolution No. 57 of 2020 as amended by Cabinet Decision No. 98 of 2022): Administered by the Ministry of Finance. Annual notification within 6 months of year-end (later than Oman's 3 months). "Licensee" concept includes branches. The MOF guidance is more detailed than Oman's.
Bahrain ESR: Similar structure, administered by the Ministry of Finance. Bahrain's regulations focus particularly on financial services entities given its status as a financial hub.
Saudi Arabia: Saudi ESR applies to entities operating in free zones rather than mainland companies generally, reflecting the different structure of Saudi's tax regime.
For multinationals with Oman in their group structure, the key practical point: you can't satisfy Oman ESR by relying on substance in another GCC state. Each jurisdiction assesses substance independently.
The most common practical challenge: board meeting attendance. The ESR requirement for management and direction in Oman means directors — or at least a quorum of them — should physically attend board meetings in Oman. Companies that hold all board meetings by video from Dubai or London may find their management-in-Oman claim weak. The fix isn't always adding Oman-based directors; sometimes it means scheduling two or three board meetings a year in Muscat with director travel booked and evidenced.
For the broader corporate tax context in which ESR operates, see the Oman corporate tax guide. For related-party transaction rules, see the Oman transfer pricing guide.
---
Frequently Asked Questions
Does Oman ESR apply to all companies registered in Oman?
No. Oman ESR under Royal Decree No. 128/2020 only applies to entities conducting one or more of the nine defined Relevant Activities. Companies whose business doesn't fall within these categories — retail, construction, ordinary manufacturing, most professional services — are not subject to ESR substance requirements, though they still need to file the annual notification confirming they don't conduct a Relevant Activity.
What is the penalty for failing the Oman ESR substance test?
Failing the substance test triggers an obligation to file an ESR report within 6 months of year-end. Failure to file the report carries penalties up to OMR 50,000. Providing inaccurate information also attracts penalties up to OMR 50,000. Repeat failures in the second year face penalties up to OMR 100,000 under Royal Decree No. 128/2020.
Is a holding company that only holds Oman subsidiaries subject to ESR?
Holding company business is a Relevant Activity under Oman ESR regardless of where the subsidiaries are located. However, if the holding company's income is entirely domestic and it is not part of a multinational group, the 'domestic exclusion' may apply. Confirm whether the exclusion conditions are met with a tax adviser before concluding ESR doesn't apply.
What does 'core income-generating activity' mean for an IP holding company?
For an IP business, the core income-generating activities include research and development, creation of IP, and decisions relating to IP exploitation. Simply holding IP transferred from another group company without any R&D activity in Oman is unlikely to satisfy the substance test — this is the category under greatest global BEPS scrutiny (OECD BEPS Action 5, 2015).
When must the Oman ESR notification be filed?
The annual ESR notification must be filed within 3 months of the entity's financial year-end — by 31 March for December year-end companies. All entities conducting a Relevant Activity must file, whether or not they pass the substance test. Entities that fail the test must also file a full ESR report within 6 months of year-end.
---
Sources
- Oman Tax Authority, *Economic Substance Regulations*, Royal Decree No. 128/2020, retrieved 2026-06-20, https://www.ota.gov.om
- OECD, *Harmful Tax Practices — 2018 Progress Report on Preferential Regimes*, BEPS Action 5, retrieved 2026-06-20, https://www.oecd.org/tax/beps/harmful-tax-practices-2018-progress-report-on-preferential-regimes-9789264311480-en.htm
- PwC Middle East, *Oman Economic Substance Regulations*, retrieved 2026-06-20, https://www.pwc.com/m1/en/tax/oman-vat.html
- KPMG Oman, *Economic Substance Regulations Overview*, retrieved 2026-06-20, https://kpmg.com/om/en/home/insights/2022/01/oman-corporate-income-tax.html
- Deloitte Middle East, *ESR in Oman: Key Requirements*, retrieved 2026-06-20, https://www.deloitte.com/me/en/services/tax/blogs/oman-corporate-tax.html