Winning a Singapore fund tax incentive is the start of an annual compliance cycle, not the end of the paperwork. Funds under 13O and 13U file an Annual Declaration with MAS, every Singapore fund company files a corporate return with IRAS, and 13D managers owe investors an annual statement. Data as of July 2026.
MAS Annual Declaration
13O/13U funds, single family office structures included, declare annually to MAS that award conditions are met: AUM, investment professionals, spending requirement, capital deployment — under whichever framework applies to the fund. Existing awardees apply the updated TSR/CDR options starting with declarations due after 5 July 2023 (MAS).
Updated AD forms were released on 2 May 2024. For funds with a 31 December year-end the deadline fell on 30 April 2024, extended once to 30 June (EY). No universal deadline for other year-ends has been published — the date should be checked against the award documentation and directly with MAS.
IRAS: Form C and the 13D position
A 13O fund company or a 13U structure remains an ordinary taxpayer: an annual Corporate Income Tax Return (Form C) with financial statements and a tax computation, with exempt income declared inside the return. The corporate filing deadline is 30 November of the YA under the general IRAS regime.
13D works differently: an offshore prescribed person needs no MAS approval and typically has no Singapore filing obligation — the status is self-assessed for each basis period.
| Scheme | MAS Annual Declaration | IRAS return | Investor statement |
|---|---|---|---|
| 13D | no — self-assessment | usually none | yes, annually (Regulation 7) |
| 13O | yes | Form C by 30 November | — |
| 13U | yes | Form C by 30 November | — |
Investor statements and the qualifying investor test
Under Regulation 7 of the 13D regulations, the Singapore fund manager must issue investors an annual statement — publishable on the manager's website since YA 2020 (text in S 723/2025). Investors use it to verify their own position.
The reason is the qualifying investor test, present in 13D and 13O/13OA but absent from 13U: non-qualifying investors above the permitted participation thresholds must pay IRAS a "financial amount" — in substance a penalty proportional to their share of the fund's income — through their own returns (ITA s13D(2)/s13O; the list of exempted persons sits in regulation 5). From FY2024 the qualifying investor list includes 13D trusts and unit trusts (FDD Cir 10/2024; KPMG).
What happens on a miss
The mechanics are gentler than commonly assumed. Failing a condition in a basis period means no exemption for that period — restored the next period once conditions are met. The hard scenario is failing by the end of a grace period: the award is revoked from the grace period's end (MAS FAQ). For non-SFO funds, from 2025 the AUM test in designated investments is checked at each FY end: if the threshold is missed, the exemption for that year is lost.
Who should care
Every 13O/13U awardee, from SFO structures to institutional funds — the AD and Form C calendar is part of the award conditions, not an option. Managers of 13D funds — because of Regulation 7 and the investor test. Fund investors — because the "financial amount" for non-qualifying status is paid by the investor, not the fund.
FAQ
When is the MAS Annual Declaration due?
The confirmed pattern exists only for a 31 December year-end: 30 April (extended once to 30 June in 2024). For other year-ends no universal deadline is published — dates are fixed in the award documentation and confirmed with MAS.
Does a 13D fund file anything with MAS?
No. 13D needs no MAS approval; the status is self-assessed each basis period. The manager's duty is the annual investor statement under Regulation 7.
Is exempt income reported to IRAS at all?
Yes. The fund company files Form C with financial statements and a tax computation; exempt income is declared within the return rather than left off it.
What if a condition is missed for a year?
The exemption does not apply for that basis period and resumes the next once conditions are met. Revocation happens only on failure by the end of a grace period.