Oman is the Gulf jurisdiction that international groups most often get wrong, and they get it wrong in the same direction every time. They assume it behaves like its neighbours. It does not. Oman has charged corporate income tax for decades, it charges withholding tax on ordinary cross-border service payments, and it has now legislated a personal income tax with a date attached. None of that makes Oman difficult. It makes Oman a place where the tax analysis has to be done rather than assumed.
The complication for a group with a European limb is not the rate. It is that a code which is still being built produces rules whose administrative practice has not settled, and that gap between what the statute says and how it is applied is where the money and the disputes are.
What Oman charges today
The Oman Tax Authority publishes the rates plainly on its schedule of tax rates for the Sultanate of Oman. Institutions and commercial companies pay income tax at 15 per cent of net taxable income, the figure set by article 112 of the consolidated Income Tax Law promulgated by Royal Decree 28/2009 as amended by Royal Decree 118/2020. Small enterprises pay 3 per cent under article 159bis 15 of the same law, subject to conditions that the Authority summarises as relating to revenues and the number of employees and that the statute sets out in article 159bis as a combination of registered capital, gross income and the average number of employees, together with a list of excluded activities. Oil and gas exploration companies pay 55 per cent income tax based on concession contracts with the government, and may also be subject to other financial obligations such as royalties and the government’s share of production. Value added tax has a basic rate of 5 per cent, with a zero rate for exports, essential goods, and international transport, and exemptions for financial services and residential letting.
Above that sits a charge that most summaries of Oman still omit. The Top-up Tax Law on Entities of Multinational Groups, promulgated by Royal Decree 70/2024 and published in issue 1578 of the Official Gazette, has been in force since 1 January 2025. Article 2 applies it to constituent entities of a multinational group whose revenues in Omani rials reach or exceed the equivalent of 750 million euro in the ultimate parent’s consolidated financial statements in at least two of the four financial years immediately preceding the year tested, and article 4 imposes the charge so as to bring the tax borne by those entities up to 15 per cent. A European group of that size no longer has the option of treating Oman as a jurisdiction where only the ordinary corporate rate is in play.
For a European group with an Omani operating subsidiary, the 15 per cent charge is the reference point, and it is high enough to change how the group thinks about where profit is earned. It is not a nominal rate attached to a jurisdiction that collects nothing. Omani tax is assessed, audited and paid.
That single fact removes most of the reflexive structuring instinct. There is very little to be gained by pushing margin out of Oman into a lower charge, and quite a lot to be lost by trying, because the pricing file then has to be defended in a jurisdiction whose authority has been examining transfer pricing arrangements for long enough to know what a thin one looks like.
The withholding tax is where the friction is
The provision that actually causes trouble is the outbound withholding tax. Article 52 of the Income Tax Law charges tax on categories of income accruing in Oman and paid to a non-resident without a permanent establishment there, and the Authority’s note on withholding tax lists those categories as royalties, consideration for research and development, consideration for the use of or the right to use computer software, fees for management, dividends, interest, and the performance of services. Article 113 sets the rate at 10 per cent of the gross amount, and article 53 makes the Omani payer liable to deduct it and remit it to the Authority no later than fourteen days from the end of the month in which the amount was paid or credited.
Read that as a group treasurer would. On royalties, consideration for the use or the right to use computer software, fees for management and the performance of services, four of the five categories the Authority’s own answers to frequently asked questions on income tax confirm as subject to the deduction, every management charge, every technical assistance fee and every software licence out of the Omani company generates a gross deduction at source, payable by the Omani payer, on a payment that also has to survive an arm’s length test. The charge falls on the gross amount, so a service recharged at cost plus a modest margin can lose more to withholding than it earns in margin.
Dividends and interest are a different matter, and the group that provisions 10 per cent against them without checking is likely to be provisioning against a charge that is not being collected. The suspension is a matter of official record. The Capital Market Authority, now the Financial Services Authority, announced in 2019 that the Government had agreed to suspend the 10 per cent tax on dividends on shares and on interest for three years from 6 May 2019, extendable. When that first period ran out, the same regulator issued Circular 11/2022 on the extension of the suspension of withholding tax on dividends and interest, recording that the Council of Ministers had extended it to 2025 as part of the economic stimulus plan. Note that the two are worded differently. The 2019 announcement, which is the one that founds the suspension, tracks the statute and speaks of dividends on shares and interest without limiting itself to traded instruments. It is Circular 11/2022 specifically, addressed as it was to the stock exchange and its participants, that frames the extension in capital markets terms, covering dividends on shares, returns on sukuk and interest on bonds. That narrower wording belongs to the circular rather than to the record as a whole, and it should not by itself be read as putting an ordinary intragroup loan outside the suspension.
What the group cannot do is read the current position off the Authority’s website, because the Authority’s own material does not agree with itself. Question 12 of the income tax answers lists the categories subject to the deduction as royalties, consideration for research and development, consideration for computer software, fees for management and the performance of services, and omits dividends and interest entirely. The note on withholding tax, on the same site, still reproduces the whole of article 52, which it sets out as seven categories, dividends and interest among them. So this article states no rate for dividends and interest. The documented position runs to 2025, the year after that is not settled by anything published, and the treatment for the period actually being filed has to be confirmed with the Authority before a distribution policy or an intragroup loan is priced on the strength of it.
The gross charge on service and management flows is the arithmetic that catches European parents. A shared services centre in the Netherlands that recharges the Omani subsidiary is running a structurally loss-making arrangement unless the withholding is credited somewhere, and whether it is credited depends on the position of the recipient rather than on the intention of the group. Where a treaty applies, the rate and the relief have to be established from the treaty text and the domestic procedure, not from an assumption. The Authority’s register of double tax agreements records an agreement with the Netherlands signed on 5 October 2009 under Royal Decree 68/2009 and effective from 2012, so a treaty analysis is available in this case, but it is the treaty text that supplies the answer. Where no treaty applies, the cost is real and recurring.
The design answer is usually to reduce the number of chargeable flows rather than to argue about the rate on each of them. Fewer, larger, better documented arrangements survive better than a long list of small recharges, and they cost less to defend.
A personal income tax with a long runway
The Authority has published the issuance of the Personal Income Tax Law under Royal Decree No. 56/2025. Tax is imposed on a natural person whose total income exceeds 42,000 Omani rials annually, at a rate of 5 per cent of taxable income, and the law will enter into force at the beginning of 2028. It is not in force now, and nothing in it applies to an income year before then. The Authority notes that the law includes deductions and exemptions taking account of the social situation, covering education, healthcare, inheritance, zakat, donations and primary housing, that its executive regulations will be issued within one year of publication in the Official Gazette, and that on its assessment approximately 99 per cent of the population is not subject to the tax.
The rate is modest and the threshold is high. The significance is not the revenue. It is that the Gulf assumption that individuals are outside the income tax net now has an exception with a commencement date, and that groups whose senior people are resident in Oman have a planning horizon rather than a permanent state of affairs.
For a European structure the practical effect arrives earlier than 2028. Shareholder remuneration policy, the location of management, and the design of any incentive arrangement now have to be tested against a rule that will be in force before most of those arrangements mature. Building an incentive plan today on the assumption of permanent non-taxation at the individual level is building on an assumption the legislator has already withdrawn.
Oman is not on the Dutch list
From the European side the important negative fact is what the Dutch regulation does not say. The Regeling laagbelastende staten en niet-coöperatieve rechtsgebieden voor belastingdoeleinden, in the version in force from 1 January 2026, designates two separate sets of jurisdictions. As low-taxed jurisdictions it names Anguilla, the Bahamas, Bahrain, Bermuda, the British Virgin Islands, Guernsey, the Isle of Man, Jersey, the Cayman Islands, Turkmenistan, the Turks and Caicos Islands and Vanuatu. It separately designates the jurisdictions drawn from the EU list of non-cooperative jurisdictions, being the United States Virgin Islands, American Samoa, Anguilla, Fiji, Guam, Palau, Panama, the Russian Federation, Samoa, Trinidad and Tobago and Vanuatu. Oman is on neither set.
That is a direct consequence of the 15 per cent charge. The criterion in article 1.2 of the Wet bronbelasting 2021 looks at whether a state does not subject entities to a profit tax at all or does so at a rate below 9 per cent, tested at 1 October of the calendar year preceding the period concerned, and Oman does not come close to that line. So the Dutch conditional withholding tax, which under article 3.1 of that law reaches interest, royalties and, through article 3.4a, dividends, does not engage merely because the recipient is Omani, and the Dutch controlled foreign company rules in article 13ab of the Wet op de vennootschapsbelasting 1969 do not engage on the listing route either.
This is the structural advantage of an Omani base that most groups never articulate. Oman pays a real rate and therefore does not attract the automatic European filters that a nominally zero jurisdiction attracts. The cost is the 15 per cent. The benefit is that the European end of the structure is assessed on its own facts rather than on a list entry.
Uncertainty is a documentation problem
The genuine risk in Oman is not the rate and not the list. It is that a code under construction produces areas where the administrative position is not yet settled, and where a group’s treatment today may be examined against guidance published later.
The response is not to seek certainty that does not exist. It is to document the position taken, the basis for it, and the alternative the group considered and rejected, at the time the position is taken. A file that shows a reasoned choice made on the law as it stood is defensible even where the answer later changes. A file that shows nothing looks like an omission, and it is treated as one.
In one mandate we reviewed a Gulf group whose Omani subsidiary had applied a treatment consistently for four years without a single internal memorandum explaining why. The treatment was probably right. Reconstructing the reasoning four years later, from people who had left, cost more than the tax at stake.
The same discipline applies to the group’s European file. An Omani position taken in Muscat becomes a European fact the moment it affects the price of an intragroup transaction, and the two files have to describe the same arrangement in the same terms. Where the Omani memorandum and the Dutch transfer pricing documentation give different accounts of who does what, the group has manufactured a contradiction that either authority can read.
Where a European holding actually fits
The Dutch participation exemption in article 13 of the Wet op de vennootschapsbelasting 1969 applies where the taxpayer holds at least 5 per cent of the nominal paid-up capital of a company whose capital is divided into shares, and it is indifferent to whether the operating profit was earned in Oman or in Germany. Dutch corporate income tax on the holding company’s own profit runs, on the bracket in article 22 of that law and on the rates the Belastingdienst publishes for 2026, at 19 per cent up to 200,000 euro and 25.8 per cent above. Outbound distributions face the dividend withholding tax set at 15 per cent of the proceeds by article 5 of the Wet op de dividendbelasting 1965, subject to treaty and directive relief.
So a European holding above an Omani operating business is not a rate arbitrage and should not be sold as one. It is an ownership platform: one place where the European subsidiaries are held, where disposal proceeds land exempt, and where a sale of part of the group can be executed without unwinding the Omani company.
The design test is whether the holding company does anything. Where it holds, decides and carries risk, the structure is coherent in both directions. Where it exists to sit in the chain, it adds a filing obligation in the Netherlands and an argument in Muscat, and the group would be better off owning the Omani business directly.
What to settle before the next filing
Four things, in order. Confirm the current published rates and the withholding position directly with the Authority itself rather than from a summary, because this is a code that moves and because the published material on dividends and interest is inconsistent, so the state of the suspension for the year being filed is a question to be answered rather than assumed. Map every cross-border payment into and out of the Omani company and price the 10 per cent withholding into the service, management, software and royalty flows, including the ones nobody thinks of as payments. Establish whether the group is within the scope of the Top-up Tax Law, which turns on the 750 million euro consolidated revenue test in two of the four preceding financial years, because that test is met at group level and a European parent can bring an Omani subsidiary into charge without anything changing in Muscat. Then decide whether the European holding is doing work, and resource it accordingly or remove it.
A group that has done those four things has an Omani structure that will read the same way in 2028 as it does now. That is a lower ambition than most tax planning claims, and in a jurisdiction whose code is still being written it is the right one.
This article is informational and does not constitute tax or legal advice. The treatment of any structure depends on its facts and on the law of each jurisdiction involved. Each engagement is subject to scope and applicable regulation.