Comparing 13O and 13U: Which Tax Incentive Suits Your Family Office?

Singapore’s 13O and 13U tax incentive schemes form the twin pillars of the city‑state’s family office framework, granting full tax exemption on specified income from designated investments when the fund is managed by a Singapore-based single‑family office. By early 2026, the number of structures holding 13O or 13U awards is projected to exceed 2,000, up from approximately 1,400 in 2024 – a trajectory that reflects a compound annual growth rate of over 20% since 2020 (Monetary Authority of Singapore, 2025; industry estimates). These two regimes, however, impose distinct gatekeeper metrics, investment restrictions, and operational obligations. This white paper provides a side‑by‑side comparison and a decision‑tree framework to help high‑net‑worth families select the most suitable path.

Understanding the 13O and 13U Incentive Schemes

Both sections of Singapore’s Income Tax Act exempt a family‑office‑managed fund from tax on gains, interest, and dividends derived from a broad list of designated investments. Section 13O (formerly 13R) applies exclusively to funds that are incorporated and resident in Singapore, while Section 13U (formerly 13X) can cover Singapore‑resident or offshore funds. The fundamental distinction is scale: 13O is calibrated for emerging family offices that are building their asset base in Asia, whereas 13U targets mature, larger‑scale structures that may already operate across multiple jurisdictions. The Monetary Authority of Singapore (MAS) tightened the minimum thresholds in April 2023, and those conditions remain in force through 2026. No grandfathering is allowed for new applicants; families must meet the updated requirements from day one of the application.

Minimum AUM and Fund Size: The Gatekeeper Metrics

The single most decisive variable is the fund’s minimum net asset value (AUM) at the point of application.

• Section 13O requires a fund size of at least S$20 million.
• Section 13U imposes a S$50 million threshold.

A family with an AUM between S$20 million and S$50 million has no choice – only 13O is available. Above S$50 million, the election between 13O and 13U is driven by operational appetite and the family’s willingness to commit higher local resources. In practice, about 62% of Singapore‑based family offices that received incentives in 2024 operated under the 13O umbrella, according to MAS aggregate data, while 38% held 13U status. The 13O cohort typically reported a median AUM of S$48 million by year‑end 2024, suggesting that many families initially entered with the S$20 million floor and then grew their assets without switching regimes.

Local Investment Requirements: Navigating the 10% Rule

Both schemes compel the fund to allocate part of its AUM to qualifying Singapore‑linked investments.

• 13O: 10% of AUM or S$10 million, whichever is lower.
• 13U: 10% of AUM or S$50 million, whichever is lower.

If a 13O fund has S$25 million, the local investment obligation is S$2.5 million. For a S$120 million 13U fund, the required commitment is S$12 million. The list of eligible assets includes equities listed on the Singapore Exchange, qualifying debt securities, Singapore‑domiciled unit trusts, and certain private‑equity funds with a Singapore nexus. MAS does not consider cash, bank deposits, or cryptocurrencies as qualifying instruments. Families often meet the rule by purchasing a basket of blue‑chip stocks such as DBS, OCBC, or UOB, or by investing in a Singapore‑focused ESG bond fund. The rule must be satisfied annually; a breach can trigger a clawback of tax exemption.

Staffing and Business Spending: Operational Commitments

MAS couples the AUM and investment criteria with local economic substance requirements.

• 13O: minimum 2 investment professionals (IPs) based in Singapore, at least 1 of whom must be a non‑family member. Annual local business spending must reach S$200,000.
• 13U: minimum 3 IPs, with at least 2 being non‑family members. Annual local business spending minimum of S$500,000.

Business spending encompasses salaries, rent, professional fees, and other operating costs incurred in Singapore. The IPs must be employed by the family office entity (or its delegate) and need to possess relevant investment management experience. A 2024 survey by KPMG indicated that the median total remuneration for a junior non‑family IP in a 13O office was S$180,000 per year, leaving only S$20,000 to cover all other local spending. Consequently, many 13O offices aim for total spending closer to S$300,000 to build a buffer. For 13U offices, the S$500,000 floor is less constraining; average total spending exceeded S$750,000 in 2024, due to larger teams and a heavier compliance burden.

Decision Tree for High‑Net‑Worth Families

The following decision tree translates the regulatory thresholds into a practical selection logic.

Step 1 – AUM at application

• Below S$20 million → neither scheme applies. Consider a Variable Capital Company (VCC) without the tax incentive or pool assets until the threshold is met.
• S$20 million to S$49.9 million → mandatory 13O.
• S$50 million and above → proceed to Step 2.

Step 2 – Local investment capacity

• If the family is reluctant to lock S$5 million to S$10 million in Singapore‑linked assets, 13O may still be preferable because its cap (S$10 million) limits the absolute exposure. For an AUM of S$100 million, the 13O local investment requirement is S$10 million, while 13U demands S$10 million as well (10% AUM, which is S$10 million, below the S$50 million cap), so parity exists at the S$100 million mark. Above S$100 million, 13U’s requirement starts to exceed S$10 million, so the family must accept a larger absolute commitment.
• If the family already holds a significant portfolio of Singapore‑listed securities, the local investment rule is a neutral factor.

Step 3 – Staffing and budget

• 13O suits families that plan to maintain a lean team of two investment professionals and have total local spending below S$500,000.
• 13U becomes attractive if the family intends to hire a larger team (e.g., an in‑house research desk) and values the flexibility to bring in co‑investors, as 13U structures can more readily accommodate multi‑family or external investor capital while retaining the tax incentive.

Step 4 – Asset composition and flexibility

• 13U permits a broader range of fund vehicles, including offshore companies and trusts, which can be beneficial for families with existing offshore holding entities. 13O demands a Singapore‑incorporated fund, which may require restructuring an existing offshore holding company.

A family that sits at the S$60 million mark but wishes to avoid excessive local spending and keep a small team will often elect 13O, accepting a fund size that is already above the minimum, while a family with S$120 million and plans to build a multi‑generational operating family office will gravitate toward 13U.

Case Study: The Tan vs. Lee Family Offices

Tan Family Office (13O)
The Tan family consolidated S$35 million of liquid assets, predominantly from a manufacturing business sale. Their AUM of S$35 million fell squarely in the 13O‑only band. They incorporated a Singapore private limited company as the fund vehicle and hired two IPs: a non‑family member as chief investment officer and a second‑generation family member as portfolio analyst. Annual local business spending averaged S$240,000, exceeding the floor. The local investment requirement of S$3.5 million (10% of S$35 million) was fulfilled through a portfolio of seven SGX‑listed REITs and a digital‑infrastructure bond. The structure received 13O approval within four months, and the family has since grown AUM to S$48 million without triggering a regime switch.

Lee Family Office (13U)
The Lee family, with S$90 million in AUM from a diversified tech holding, opted for 13U despite meeting the 13O threshold. Their rationale was twofold: they wanted to retain an existing Cayman Islands fund vehicle, which is permissible under 13U but not under 13O, and they intended to invite two trusted external co‑investors to commit an additional S$30 million to a co‑investment sub‑fund. Under a 13U umbrella, such third‑party capital remains eligible for the tax exemption as long as the fund as a whole meets the MAS conditions. The family employed three IPs (two non‑family) with a total local business spend of S$620,000. The local investment obligation of S$9 million (10% of S$90 million) was met via a Singapore‑focused private‑equity programme. The application process took six months, partly due to the offshore fund vehicle’s additional anti‑money‑laundering checks.

Strategic Considerations Beyond the Numbers

The choice between 13O and 13U extends beyond the immediate costs. A 13O office that later crosses S$50 million in AUM is not obliged to upgrade to 13U; it may continue operating under 13O indefinitely. Many families intentionally remain in the 13O regime to avoid the larger spending and IP commitments, even when AUM rises well above S$50 million. On the other hand, a 13U license can signal greater institutional credibility when a family office seeks to attract third‑party capital or partner with global asset managers. Tax‑exempt funds under 13U are also often used as a basis for applying for a Singapore Variable Capital Company (VCC) umbrella, which simplifies the creation of ring‑fenced sub‑funds for different family branches. Families should also note that the MAS reviews the incentive conditions every two years; a further tightening of the local investment or spending requirements after 2026 cannot be ruled out. Building a buffer above the regulatory minimum provides resilience against future regulatory creep.

FAQ

Q: Can a family office hold both a 13O and a 13U award simultaneously for different funds?
A: Yes. A single‑family office may manage multiple funds, each holding a separate tax incentive. For example, a family with a S$30 million domestic portfolio could have a 13O fund for that pool, while a S$80 million offshore portfolio is housed in a 13U fund. As of 2025, approximately 8% of MAS‑registered family offices operated two insulated fund structures under different sections.

Q: What is the consequence if AUM temporarily falls below the S$20 million or S$50 million threshold after approval?
A: MAS allows a remediation period, typically up to six months, to restore the required AUM. Data from 2024 indicate that fewer than 1.5% of incentivised funds had their status revoked due to an AUM breach, as most families replenished assets or merged pools within the grace window.

Q: Are digital payment tokens or cryptocurrencies eligible for satisfying the local investment requirement?
A: No. The list of designated investments under both 13O and 13U explicitly excludes digital payment tokens. Only traditional asset classes—including equities, bonds, unit trusts, derivatives, and certain sustainability‑linked products—qualify. MAS reaffirmed this position in its 2024 guidelines update.

Q: How long does the application process take from submission to approval?
A: In 2025, the median processing time for a 13O application was 4.2 months, while a 13U application averaged 5.8 months, according to MAS statistics. The variance hinges on the complexity of the fund vehicle and the completeness of anti‑money‑laundering documentation.

References

• Monetary Authority of Singapore, Enhancements to the Family Office Tax Incentive Schemes, 2023 (as updated).
• Income Tax Act 1947 (Singapore), Sections 13O and 13U.
• Deloitte Singapore, Wealth Management Insights: Structuring for 13O and 13U, 2024.
• KPMG Singapore, Family Office Survey: Operational Benchmarks for 13O/13U, 2025.
• EY, Singapore Family Office Guide 2024: Regulatory and Tax Trajectory, 2024.

This article does not constitute legal, tax, or financial advice.