Compare Singapore's three SFO tax incentive routes — Section 13O, 13U, and 13D — and understand which structure fits your family office's AUM, domicile, and compliance needs.

Singapore has established itself as Asia’s primary hub for single family offices (SFOs), with over 2,000 registered SFOs as of end-2024. For families weighing whether to establish or restructure an SFO in Singapore, three tax incentive routes under the Income Tax Act 1947 determine whether a fund vehicle’s qualifying investment income is exempt from Singapore’s 17% corporate tax.

Those three routes are Section 13O, Section 13U, and Section 13D. Each targets a different type of fund structure, a different AUM range, and a different domicile. Choosing the wrong route — or applying before the structure is ready — adds delay, cost, and compliance risk.

This article explains each route, compares their requirements side by side, and outlines the key regulatory changes from 2025 and June 2026 that affect both new and existing SFOs. If you are evaluating Singapore as your family office base, understanding these three schemes is the starting point for every structural decision that follows.

What Are the Three Tax Incentive Routes?

The Monetary Authority of Singapore (MAS), in coordination with the Inland Revenue Authority of Singapore (IRAS), administers three fund-level tax exemption schemes relevant to single family offices:

• Section 13O — the Resident Fund Tax Incentive Scheme, for Singapore-incorporated and tax-resident fund vehicles.
• Section 13U — the Enhanced-Tier Fund Tax Incentive Scheme, for larger or more structurally complex funds, including offshore vehicles.
• Section 13D — the Offshore Fund Tax Exemption Scheme, for non-Singapore-incorporated fund vehicles managed by a Singapore-based fund manager.

All three schemes exempt specified income from designated investments — a defined list that includes dividends, interest, gains on disposal of securities, derivative income, and most categories of fund-level investment return. None of the schemes exempts income from Singapore immovable property. Each scheme attaches to the fund vehicle, not to the family office entity itself.

The schemes are currently set to sunset on 31 December 2029, subject to parliamentary extension. Historically, MAS has renewed these schemes at each expiry, but applicants should not treat continuation as guaranteed when planning multi-decade structures.

Section 13O: The Resident Fund Scheme

Section 13O (formerly known as Section 13R prior to 2020) applies to fund vehicles that are both Singapore-incorporated and Singapore tax-resident. For most single family offices, the fund vehicle is a Singapore private limited company or, increasingly, a Variable Capital Company (VCC).

On the SFO track, Section 13O starts at SGD 20 million in designated investments. That is higher than the general-fund 13O floor of SGD 5 million. The structure is entirely onshore, which simplifies governance and annual reporting. The trade-off is that the fund must remain tax-resident in Singapore throughout the life of the incentive.

Key Requirements (SFO Track)

• Minimum AUM: SGD 20 million in designated investments at the point of application.
• Investment professionals (IPs): At least 2 IPs employed by the fund manager, of whom at least 1 must be a non-family member. Each IP must earn more than SGD 3,500 per month and spend more than 50% of their time on qualifying investment activities.
• Local Business Spending (LBS): Tiered by AUM — SGD 200,000 per year for funds below SGD 250 million AUM, SGD 300,000 for AUM between SGD 250 million and SGD 2 billion, and SGD 500,000 for AUM above SGD 2 billion.
• Capital Deployment Requirement (CDR): At least 10% of AUM or SGD 10 million (whichever is lower) must be deployed into qualifying local investments, such as SGX-listed equities or Singapore-based operating companies.
• Fund manager: Must be a Singapore-incorporated entity, either MAS-licensed or operating under the SFO licensing exemption.
• Banking: The fund must maintain an account with a MAS-licensed financial institution at all times.

Qualifying local business spend typically includes salaries of Singapore-based staff, professional fees paid to Singapore service providers (audit, legal, corporate secretarial, tax, custody), and rental of Singapore office space. Offshore adviser fees do not count.

Section 13U: The Enhanced-Tier Scheme

Section 13U (formerly Section 13X) is the enhanced-tier variant. The most important structural distinction from 13O is that Section 13U does not require the fund vehicle to be Singapore-resident. The fund can be a Singapore company, VCC, limited partnership, trust, or a foreign-incorporated entity such as a Cayman exempted limited partnership — provided it is managed from Singapore.

This flexibility makes 13U the appropriate route for families with offshore feeder structures, multi-jurisdictional family branches, or investment strategies that benefit from established offshore fund vehicles familiar to co-investors or private equity counterparties.

Key Requirements (SFO Track)

• Minimum AUM: SGD 50 million in designated investments at the point of application.
• Investment professionals (IPs): At least 3 IPs, of whom at least 1 must be a non-family member. The same SGD 3,500/month and 50%-time criteria apply.
• Local Business Spending (LBS): Same tiered framework as 13O — SGD 200,000 (below SGD 250M AUM), SGD 300,000 (SGD 250M–SGD 2B AUM), or SGD 500,000 (above SGD 2B AUM).
• Capital Deployment Requirement: Same 10%/SGD 10 million local investment commitment as 13O — but this requirement does not apply if the fund is an offshore vehicle. This is a key structural advantage for families deploying across APAC or global markets.
• Fund vehicle domicile: Singapore or offshore. Master-feeder structures are explicitly permitted under 13U.
• Fund manager: Must be Singapore-incorporated and licensed or operating under an applicable MAS exemption.

The absence of a Capital Deployment Requirement for offshore 13U vehicles is a practical advantage that is frequently overlooked. For a SGD 100 million fund primarily deploying into APAC markets outside Singapore, 13U removes the portfolio construction constraint of holding SGD 10 million in Singapore-specific assets.

Section 13D: The Offshore Fund Exemption

Section 13D (formerly Section 13CA) operates on a different model from 13O and 13U. It exempts specified income earned by a qualifying offshore-domiciled fund — a Cayman, BVI, or similar structure — that is managed by a Singapore-based fund manager. Crucially, Section 13D requires no formal MAS application. The exemption is self-assessed each year of assessment, provided the conditions are documented and maintained.

This makes 13D the lightest-touch of the three schemes from a process standpoint. There is no minimum AUM threshold and no minimum local business spending requirement. The trade-off is a stricter ownership test: the fund must not be wholly owned by Singapore residents, and specific ownership restrictions apply to Singapore citizen and resident investors.

Key Conditions Under Section 13D

• Fund domicile: The fund vehicle must be offshore — not Singapore-incorporated and not Singapore tax-resident.
• Fund manager: Must be a Singapore-based fund manager, MAS-licensed or exempt.
• Ownership test: The fund must not be wholly owned by Singapore-resident investors. Specific percentage restrictions apply to Singapore citizens, residents, and their associates.
• No minimum AUM: There is no floor on designated investments — making 13D accessible to smaller offshore structures.
• No MAS application: The exemption is self-assessed. There is no award letter or formal approval process.
• Economic substance (upcoming): An economic substance condition requiring at least one investment professional is expected to apply to 13D from the financial year ending 2027. Confirm the current position with MAS before relying on the self-assessment.

Section 13D suits families that already hold assets in an established offshore structure and are adding Singapore as their management base, rather than building a new Singapore-centric structure from the ground up. It is also used by boutique managers running a smaller book where the 13O application process would be disproportionate.

If the family’s long-term intent is to centralise operations in Singapore and grow AUM over time, transitioning to 13O or 13U later provides stronger regulatory certainty and a clearer MAS relationship — though that is a separate application process.

Side-by-Side Comparison

The table below summarises the principal differences between the three schemes as they stand under the current MAS framework. Always confirm against the operative MAS factsheets at the time of application, as conditions are reviewed periodically.

How to Choose Between the Routes

The right route depends on three primary factors: fund domicile preference, available AUM in designated investments, and the family’s tolerance for ongoing operational substance. The decision is rarely ambiguous once those three factors are clearly mapped.

Choose Section 13O if:

• The family’s AUM in designated investments is between SGD 20 million and SGD 50 million.
• A Singapore-only fund structure is acceptable — no offshore feeder is needed.
• The investment team is small, and a 2-IP structure is realistic.
• The family wants a straightforward onshore structure with a clear MAS relationship from the outset.

Choose Section 13U if:

• The family’s AUM in designated investments exceeds SGD 50 million.
• The family wants the option of an offshore fund vehicle — for example, a Cayman exempted limited partnership.
• The investment strategy involves private equity, hedge fund allocations, or co-investments where an offshore structure is standard among counterparties.
• The family plans to hire a 3+ person investment team and can sustain the higher operational substance.
• Full global portfolio deployment is needed without a local investment carve-out.

Choose Section 13D if:

• The family already has an established offshore fund structure (Cayman, BVI, or similar) and is adding Singapore as the management base.
• AUM is below SGD 20 million in designated investments, making 13O ineligible.
• The family wants to establish a Singapore management presence quickly, without the timeline of a formal MAS application.
• The ownership composition of the fund allows compliance with the 13D investor restrictions.

Families sitting at the SGD 50–80 million AUM boundary sometimes find 13O and 13U both technically available. In that range, the key differentiator is whether offshore fund vehicle flexibility matters to the strategy. If not, 13O’s slightly lower substance obligations make it the more efficient choice. If AUM is expected to grow substantially, structuring for 13U from the outset avoids a full re-application later.

2025–2026 Regulatory Updates You Need to Know

Two significant regulatory changes affect how families must approach Singapore SFO structuring now.

The 2025 Economic Substance Tightening

MAS Circular FDD Cir 10/2024, issued 1 October 2024 and effective 1 January 2025, tightened the economic criteria for both Section 13O and Section 13U. Key changes include:

• AUM is now measured exclusively against designated investments — not total gross assets. Real estate held personally, operating businesses, and private holdings outside the designated investments definition do not count toward the threshold.
• Local Business Spending moved from a flat SGD 200,000 to the current 3-tier model: SGD 200,000 (below SGD 250 million AUM), SGD 300,000 (SGD 250 million to SGD 2 billion AUM), or SGD 500,000 (above SGD 2 billion AUM).
• Section 13O gained a formal minimum IP requirement — previously it had none. Both 13O and 13U now require IPs earning more than SGD 3,500 per month and spending more than 50% of their time on qualifying investment activities.
• Existing pre-2025 awards generally have until the financial year ending 2027 to comply with the new thresholds.

These changes mean that a family with SGD 80 million in total assets but only SGD 40 million in designated investments — because the other SGD 40 million is in direct real estate — does not meet the 13U AUM requirement. Asset composition analysis before application is essential.

The June 2026 MAS SFO Licensing Exemption Framework

On 15 June 2026, MAS replaced the previous case-by-case licensing exemption approach with a unified, notification-based class exemption framework for qualifying SFOs. The new framework is structure-agnostic — it applies regardless of how the family office is legally organised.

Under the new regime, a qualifying SFO no longer needs to seek an individual MAS exemption or hold a Capital Markets Services licence to manage the family’s assets. Instead, the SFO must notify MAS of its operations and satisfy prescribed conditions on an ongoing basis. Key notification timelines:

• New SFOs (established from 15 June 2026 onwards): must submit a Notice of Commencement of Business to MAS within 14 days of starting operations.
• Existing SFOs (operational before 15 June 2026): must file the SFO Notification with MAS by 15 June 2027.

Once notified, SFOs must file an annual return with MAS within 4 months of each financial year-end and maintain an account with a MAS-licensed bank at all times. This framework is separate from the Section 13O/13U/13D tax incentive applications — qualifying for the licensing exemption does not automatically confer a tax incentive, and vice versa.

Existing SFOs currently relying on case-by-case exemptions should not defer this review. The transitional period runs to 15 June 2027, but reviewing structure eligibility, filing the notification, and confirming ongoing compliance obligations takes time — particularly where the existing structure needs adjustment.

Common Structuring Mistakes

1. Applying on Gross Wealth Rather Than Designated Investments

The AUM thresholds for 13O and 13U are measured against designated investments as defined by MAS — not total household wealth. Families sometimes proceed toward an application based on headline asset figures, only to find that much of their wealth (direct real estate, operating businesses, personal holdings) sits outside the definition. AUM composition analysis should happen before any structural work begins.

2. Treating the Non-Family IP Requirement as a Formality

Both 13O and 13U require at least one non-family investment professional. MAS looks for genuine investment decision-making capability and appropriate credentials — not an administrator relabelled as an IP. This hire affects both the application outcome and ongoing compliance reviews. Plan the recruitment before filing.

3. Filing Before the Structure Is Operational

MAS expects to see a credible, functioning operational structure at the point of application — not a proposed one. The fund vehicle should be incorporated, the fund manager entity in place, IPs hired, and the MAS-licensed bank account open. Premature filings generate extensive back-and-forth and delay approval rather than accelerate it.

4. Underestimating the Recurring Local Business Spend

The tiered LBS requirement recurs every year. Families that calculate LBS on an application-year basis — rather than building a sustainable operating model — risk falling short in years two and three, which can trigger a compliance review and loss of the incentive. A realistic operating budget, factoring in staff, professional services, office, and custody, should be modelled before selecting the route.

5. Treating 13O/13U and the June 2026 Licensing Exemption as the Same Process

The MAS tax incentive application (for 13O or 13U) and the MAS SFO licensing exemption notification (under the June 2026 framework) are distinct regulatory steps with different criteria and timelines. Conflating them — or addressing only one — leaves the SFO exposed on the other. Both need to be planned and sequenced together, alongside AML and compliance programme implementation.

How GSS Legal Can Help

Section 13O, 13U, and 13D are not interchangeable. Each maps to a specific fund domicile, AUM range, and operational model. The right choice depends on an honest assessment of where the family’s designated investments sit, whether offshore fund vehicle flexibility is needed, and what level of Singapore operational substance the family can sustain over time.

Getting the structure right before the application — not after — is where the work happens. That means aligning the fund vehicle, the fund manager entity, the IP hires, the banking arrangement, the local business spend model, and the June 2026 licensing exemption notification into a single coordinated plan.

GSS Legal advises families and their legal counsel on the regulatory and structural dimensions of Singapore single family office establishment. Our work spans corporate formation, licensing and MAS regulatory navigation, AML and compliance programme design, banking and account setup, and ongoing regulatory stewardship. We operate from Singapore and bring direct regional experience across Asia, the Gulf, and offshore markets to each engagement.

If you are at the early stage of evaluating the right route, or if you have an existing SFO that needs to be reviewed against the 2025 substance changes or the June 2026 notification requirements, our jurisdiction advisory team can provide a structured assessment of your options before any commitments are made.