November 6, 2025 — The single-family office sector — the dedicated investment, governance, and administrative vehicles that ultra-high-net-worth families establish to manage their wealth — has been migrating from its historical centres for the past five years. The migration has been most visible in the movement of new and existing offices to the Dubai International Financial Centre and the Abu Dhabi Global Market in the United Arab Emirates, with comparable but smaller-scale movement to Singapore. The traditional European centres — Switzerland, Luxembourg, Liechtenstein, the United Kingdom — have retained their existing offices but have absorbed a smaller share of new establishments. The pattern is sufficiently consistent across families and across jurisdictions of origin that it merits structural rather than anecdotal analysis.

The structural drivers are reasonably well-understood. The Gulf jurisdictions have built dedicated regulatory frameworks for single-family offices that combine flexibility, low cost, and a tax environment that favours wealth preservation. The lifestyle and operational considerations — international connectivity, language environment, security, professional services ecosystem — have become competitive with the traditional centres. The geopolitical considerations — distance from European tax-policy uncertainty, distance from the post-2008 banking deleveraging cycle, distance from the political risk that some originating families have come to perceive in their home jurisdictions — have favoured the Gulf. The combination has produced a migration that is now well past its early-adopter phase and is becoming a recognised pattern.

This article reads the structural and legal architecture of the family office regimes in the principal Gulf jurisdictions, compares them with the traditional alternatives, and identifies the considerations that practitioners should weigh in advising families.

What a family office actually is and does

The term family office is used loosely. In its most precise sense, a single-family office is a dedicated entity that provides investment, governance, administrative, and lifestyle services to one ultra-high-net-worth family. The office may be a holding company, an operating company, a trust, or a combination, depending on the legal architecture. Its activities typically include investment management of the family's financial assets, oversight of the family's operating businesses, structuring and administration of estate planning and succession arrangements, governance of family decision-making, and the coordination of personal services for family members.

The size of single-family offices varies enormously. The smallest may have one or two employees and minimal infrastructure. The largest may have several hundred employees, sophisticated investment teams comparable to mid-tier institutional asset managers, dedicated legal and tax functions, and global office networks. The legal and regulatory regimes that apply to family offices vary accordingly: the smallest can typically operate under modest registration requirements; the largest may require full regulated investment management licensing.

The multi-family office is a related but distinct institution. The multi-family office serves multiple unrelated families through a shared platform. The legal and regulatory framework for multi-family offices is generally closer to standard wealth management than to single-family offices, with the principal regulatory question being investment management licensing.

The migration analysed in this article is principally about single-family offices. The drivers and the legal considerations differ for multi-family offices and are addressed only secondarily.

The DIFC family office regime

The Dubai International Financial Centre established its dedicated single-family office regime through the DIFC Single Family Office Regulations, which were modernised in 2020 and have been refined further in subsequent years. The regime is operated by the Dubai Financial Services Authority and provides a framework specifically calibrated to the needs of single-family offices.

The regulatory framework is, in design, lighter than full investment management licensing. A DIFC single-family office is not required to obtain a financial services licence as long as its activities are limited to providing services to a single family group. The office must register with the DIFC Registrar of Companies, must satisfy minimum substance requirements (qualified personnel, premises, governance), and must comply with anti-money-laundering and beneficial ownership reporting obligations. The compliance burden is non-trivial but materially lighter than the burden of full DFSA-licensed wealth management.

The tax framework follows the broader UAE corporate tax architecture. The UAE introduced a federal corporate tax of nine percent in June 2023, and a Domestic Minimum Top-up Tax aligned with Pillar Two from January 2025. A DIFC family office is, in general, subject to the federal corporate tax on its income. However, certain qualifying activities and certain qualifying entity structures may benefit from preferential treatment, and the interaction with the DIFC's separate corporate tax regime has been the subject of ongoing administrative interpretation.

The Common Reporting Standard applies in the UAE, with the consequence that financial accounts of UAE family office structures are reported to the tax authorities of family members' jurisdictions of tax residence. The family office structure does not, in itself, provide opacity from the family members' home tax authorities, and any tax planning relies on the family members' actual displacement of tax residence under the multi-factor tests applied by their home jurisdictions.

The DIFC has built an extensive professional services ecosystem around its family office regime. International law firms, audit firms, and wealth advisory firms have established DIFC offices and provide services calibrated to family office needs. The English common-law legal system that operates within the DIFC, with the DIFC Courts as the dispute resolution forum, has been a significant attractor for family offices accustomed to common-law arrangements.

The ADGM family office regime

The Abu Dhabi Global Market established its single-family office regime through regulations that took effect in 2017 and that have been progressively refined. The regime is operated by the ADGM Financial Services Regulatory Authority and provides a framework comparable to but with several distinguishing features from the DIFC.

The ADGM has emphasised the foundation as a structuring vehicle. The ADGM Foundation is a legal entity comparable to a Liechtenstein Stiftung or a Jersey foundation, designed to hold assets for specified purposes including family wealth preservation and succession. The Foundation can serve as the central holding entity for a family group's assets, with the family office operating alongside it to provide investment and administrative services.

The regulatory framework for ADGM single-family offices has been designed to be lighter than financial services licensing while maintaining substance and governance requirements. The ADGM has emphasised flexibility in entity structuring and has developed administrative practices that facilitate complex family structures.

The English-derived legal system of the ADGM, including the ADGM Courts as a separate common-law jurisdiction within the UAE, has been a significant attractor for families accustomed to common-law structures. The Foundation regime has been particularly attractive for families seeking the equivalent of European foundation structures within the Gulf time zone and regulatory environment.

The professional services ecosystem in ADGM has grown substantially over the past five years and now includes major international law firms, audit firms, and trust companies. The ecosystem is younger than the DIFC's but is building rapidly.

Singapore as the principal Asian alternative

Singapore has been the principal Asian alternative for family office establishment for the past decade and continues to attract significant new offices despite the rise of the Gulf alternatives. The Singapore framework has several distinct features that differentiate it from the Gulf options.

The Monetary Authority of Singapore administers the Singapore family office regime through the Section 13O and Section 13U schemes of the Income Tax Act, which provide tax exemptions for qualifying investment income earned by funds managed by qualifying family offices. The schemes have been refined in 2022 and 2023 to tighten the qualifying conditions, including minimum economic activity in Singapore, minimum employment of investment professionals locally, and minimum investment in Singapore-based assets.

The tightening of the qualifying conditions in 2022 and 2023 was, in part, a response to the rapid growth of single-family office establishment in Singapore through 2018 to 2021. The growth had produced concerns about insufficient substance and about the competition for high-net-worth migration to Singapore exceeding the capacity of supporting infrastructure. The tightened conditions have moderated the growth without halting it; new family office establishments continue, but at a more measured pace and with stronger substance commitments.

The tax environment in Singapore is more nuanced than in the UAE. The corporate tax rate is seventeen percent, with various incentive regimes available for qualifying activities. Personal income tax operates on a progressive schedule peaking at twenty-four percent for high-income individuals. The combination produces an effective tax environment that is competitive but not as low as the UAE for the highest-earning families.

The professional services ecosystem in Singapore is mature and deep, with all major international law firms, audit firms, and wealth advisors well-established. The English common-law legal system, the Singapore International Arbitration Centre, and the Singapore International Commercial Court provide a robust dispute resolution architecture.

Switzerland: the traditional centre that retained its position

Switzerland was the historical centre of European family office activity through the entirety of the twentieth century and remains a significant centre. The Swiss framework operates through the cantonal-level corporate tax architecture, with effective rates varying by canton in the range of approximately twelve to twenty-one percent before the post-Pillar Two top-up.

The Swiss family office sector is mature, with a deep professional services ecosystem and a long history of wealth management infrastructure. The principal cantons hosting family offices — Zurich, Geneva, Zug, Vaud — have developed administrative practices calibrated to family office needs and offer differentiated environments for different types of activity.

The Swiss tax environment for family offices has been affected by Pillar Two for in-scope groups. The QDMTT brings the effective rate to fifteen percent for in-scope groups regardless of canton. For out-of-scope groups, which include most single-family office structures with consolidated revenues below the seven hundred and fifty million euro Pillar Two threshold, the cantonal differentiation continues to operate.

The substance requirements for Swiss family offices are well-established and have not changed materially in recent years. The principal substance requirements are personnel, premises, decision-making in Switzerland, and economic activity commensurate with the income reported. The administrative practice on substance is rigorous but predictable.

Switzerland has retained its existing family office population but has absorbed a smaller share of new establishments than in the pre-2018 period. The shift in new establishment patterns has not produced material outflow from existing offices but has affected the trajectory of growth.

The drivers of the migration

The combined patterns described above produce an aggregate migration that has clear structural drivers. The drivers are as follows.

The first driver is the tax environment. The UAE's nine percent corporate tax, combined with the absence of personal income tax and the QDMTT for in-scope groups, produces an effective tax environment that is competitive with any other jurisdiction at scale. The Singapore and Swiss environments are competitive but not equivalent.

The second driver is the regulatory framework. The DIFC and ADGM have built family-office-specific regulatory frameworks that are lighter than full financial services licensing while maintaining substance and governance requirements. The frameworks are calibrated to single-family office needs in ways that the more general regulatory frameworks of other jurisdictions are not.

The third driver is the lifestyle and operational environment. The UAE's international connectivity, language environment, security, and professional services ecosystem have reached a level at which they are competitive with traditional centres. The traditional centres' historical advantages on these dimensions have eroded as the UAE has invested in infrastructure.

The fourth driver is the geopolitical and political environment. Several originating jurisdictions — particularly in Europe — have produced political conditions that have prompted families to seek diversification of jurisdictional exposure. The UAE has, in this context, been positioned as a stable jurisdiction with low political risk for wealth preservation purposes.

The fifth driver is the substance environment. The Gulf jurisdictions have built genuine substance ecosystems — personnel, premises, professional services, governance support — that allow family offices to operate with the substance levels that home-jurisdiction tax authorities now require. The substance requirements for non-residence claims have intensified, and the Gulf jurisdictions can support families' substance positions in ways that some alternative jurisdictions cannot.

The legal considerations in office establishment

The establishment of a family office in any jurisdiction requires careful attention to several legal considerations.

The first is the choice of entity structure. A single-family office can be structured as a corporation, a foundation, a trust, or a combination. The choice depends on the family's governance preferences, the asset categories to be held, the succession arrangements desired, and the regulatory framework of the jurisdiction. The Foundation regimes of the ADGM, Liechtenstein, and the Jersey/Guernsey/Cayman alternatives offer different combinations of flexibility and certainty.

The second is the regulatory framework that applies. A single-family office serving only one family group typically operates under lighter regulatory requirements than a multi-family office or a regulated wealth manager. The boundary between single-family office and multi-family office activity must be observed; activity that crosses the boundary may trigger full investment management licensing.

The third is the substance position. The family office must satisfy the substance requirements of its jurisdiction of establishment and must satisfy the substance requirements that family members' jurisdictions of tax residence apply to non-residence claims. The two sets of substance requirements are not identical but overlap substantially.

The fourth is the international tax position. The family office structure must be analysed for its position under the bilateral tax treaty network, under the home jurisdictions' anti-abuse provisions, and under the OECD's Pillar Two framework if the consolidated group reaches the threshold.

The fifth is the governance architecture. The family office must have governance arrangements that satisfy the family's needs, that comply with the regulatory framework of the jurisdiction, and that are robust to the long-term horizons over which family offices typically operate.

The trajectory through the second half of the 2020s

The trajectory of the family office migration through the second half of the 2020s is reasonably well-defined. The Gulf jurisdictions — principally the DIFC and ADGM — will continue to absorb new establishments at rates above their historical share. Singapore will continue to compete for Asian-origin families and will retain its position as the principal Asian alternative. Switzerland and the other traditional European centres will retain their existing populations but will continue to absorb smaller shares of new establishments.

The structural drivers of the migration are stable. The tax environment, the regulatory framework, the lifestyle and operational environment, the geopolitical considerations, and the substance environment all favour the Gulf at the margin. The drivers are not, in any individual case, decisive; many families continue to establish in Switzerland, Singapore, or Luxembourg for reasons specific to their circumstances. But the aggregate pattern is clear.

The implications for advisory practice are substantial. The professional services ecosystem must increasingly include the Gulf jurisdictions as primary options rather than as alternatives. The legal and tax expertise relevant to Gulf family office structures must be developed alongside the traditional European and Asian expertise. The advisory function must be capable of comparing the alternatives across multiple dimensions and recommending the structure best calibrated to the family's specific needs.

The family office sector, like the broader cross-border wealth management sector, is being rebuilt around a more dispersed geographic distribution and a more substance-intensive operational reality. The rebuilding is well underway, and the patterns of the new architecture are now visible. The migration to the Gulf is one component of that broader pattern, and it is one of the components that has the most concentrated and observable structural drivers.