13R and 13X are legacy section numbers for these schemes.
Renumbered in the Income Tax Act 1947, 2020 Revised Edition (in force 31 December 2021). The active schemes are now Section 13O (formerly 13R) and Section 13U (formerly 13X). See 13O vs 13U comparison for current conditions.
Sections 13R and 13X — Legacy Reference
Older Singapore family-office tax-scheme references still cite 13R and 13X. This page maps the legacy names to the current sections + flags what has changed since.
Name change at a glance
| Legacy name | Current name | What it is |
|---|---|---|
| Section 13R | Section 13O | Section 13O (Singapore Resident Fund Scheme) — Singapore company (or limited partnership under 13OA); S$20 million minimum AUM for family-office funds |
| Section 13X | Section 13U | Section 13U (Enhanced-Tier Fund Scheme) — fund in any jurisdiction; S$50 million minimum AUM for family-office funds |
| Section 13CA | Section 13D (offshore fund exemption) | 13D — self-assessed exemption for non-resident funds managed in SG |
What changed (and what didn't)
The renumbering came with the 2020 Revised Edition
The Income Tax Act 1947, 2020 Revised Edition, in force 31 December 2021, renumbered former sections 13CA, 13R and 13X as 13D, 13O and 13U. Today's sections 13R and 13X are unrelated provisions. The scheme conditions themselves — AUM minimums, investment-professional headcount, local spending — are set by MAS circulars, not by the section numbers.
The conditions have been revised several times
MAS circulars refer to successive condition sets — pre-18 April 2022, 18 April 2022 and 5 July 2023 — and a further revision for new single-family-office awards approved on or after 1 August 2026. Under the current rules:
- Minimum AUM. S$20 million for 13O and S$50 million for 13U, tested at application and at each financial year-end.
- Investment professionals. 2 for 13O and 3 for 13U, with at least 1 non-family professional in both by the end of the award's first financial year.
- Local spending. Tiered by year-end AUM, from S$200,000 to S$1 million a year, for both schemes.
- Capital deployment. At least the lower of 10% of AUM or S$10 million in 3 qualifying options.
- Annual Declaration. Both schemes require an Annual Declaration to MAS for each Year of Assessment.
If you have older client materials or sales decks that quote 13R / 13X thresholds, treat the numbers as out of date. Funds with existing awards follow the transition rules in Annex 6B (13O) and Annex 7B (13U) of the circular.
Source: MAS Circular FDD Cir 05/2026. Per MAS Circular FDD Cir 05/2026 (31 July 2026), for new single-family-office awards from 1 August 2026. Verified 14 September 2026. General information only, not tax or legal advice — consult a Singapore tax adviser.
Where to go next
Section 13R and 13X — FAQs
What happened to Section 13R in Singapore?
The family-office fund scheme formerly in Section 13R is now Section 13O. It was renumbered in the Income Tax Act 1947, 2020 Revised Edition, in force 31 December 2021. Its conditions have been revised by MAS since — for single-family-office funds awarded on or after 1 August 2026, 13O needs at least S$20 million of AUM, 2 qualifying investment professionals and tiered local spending of S$200,000 to S$1 million a year. See the current 13O detail page.
What happened to Section 13X in Singapore?
The scheme formerly in Section 13X is now Section 13U, renumbered in the same Income Tax Act 1947, 2020 Revised Edition (in force 31 December 2021). For single-family-office funds awarded on or after 1 August 2026, 13U needs at least S$50 million of AUM, 3 qualifying investment professionals (at least 1 not a family member) and the same tiered local spending as 13O. See the current 13U detail page.
Should I still use the names 13R / 13X?
Most Singapore tax and family-office advisors now use the current names 13O and 13U. The legacy names 13R and 13X are still used in older client materials and articles. For any new application, MAS and IRAS reference the current section numbers.
Were any substantive changes made when 13R/13X became 13O/13U?
The renumbering came with the Income Tax Act 1947, 2020 Revised Edition; the scheme conditions themselves are set and revised by MAS circulars. MAS circulars refer to successive condition sets — pre-18 April 2022, 18 April 2022 and 5 July 2023 — and the current conditions for new single-family-office awards apply from 1 August 2026 (MAS Circular FDD Cir 05/2026).
Is there still a Section 13R or 13X in the Income Tax Act?
Section numbers 13R and 13X still exist in the current Income Tax Act 1947, but they are unrelated provisions. Older family-office guidance citing 13R / 13X should be read as referring to today's 13O / 13U — with current conditions, not the ones quoted at the time.
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