CPFIS — the CPF Investment Scheme — allows you to invest the portion of your OA balance above S$20,000 (and SA above S$40,000 with additional conditions) in approved investments. The case for doing so sounds compelling: stock market returns of 6–8% versus OA's 2.5%. The case against is less often discussed, but equally important.
The comparison
OA interest rate vs realistic investment returns
| Option | Return | Risk | Fees |
|---|---|---|---|
| Leave in CPF OA | 2.5% guaranteed (first S$20k earns extra 1%) | None | None |
| Leave in CPF SA | 4% guaranteed (higher floor, earns extra 1% on first S$40k) | None | None |
| CPFIS — low-cost index fund | 6–8% long-term average (not guaranteed) | Capital loss possible | 0.2–0.5% p.a. fund + platform fees |
| CPFIS — active unit trust | Variable; historically often below index after fees | Capital loss possible | 1–2% p.a. or more |
The SA top-up alternative
Why many people are better off topping up SA instead
If your goal is to maximise retirement savings, topping up your SA (or MA) via the Retirement Sum Topping-Up Scheme earns 4% guaranteed. That is a better risk-adjusted return than many CPFIS investments after fees and without the downside risk. Tax relief of up to S$8,000/year is also available for SA top-ups (own account plus S$8,000 for family members).
S$10,000 in CPF SA at 4% for 30 years becomes S$32,400. The same S$10,000 in a CPFIS investment averaging 7% but with 0.5% fees (net 6.5%) becomes S$66,100. CPFIS can win over long periods with low-cost index funds — but the margin over SA is not as wide as the headline return comparison suggests, and involves accepting genuine capital risk.
Who should consider CPFIS
The cases where investing CPF makes sense
Time reduces sequence-of-returns risk. Over 20+ year periods, a low-cost global index fund has historically outperformed the OA interest rate significantly. The shorter your horizon, the less the probability of outperformance.
CPFIS performance data consistently shows that the average investor underperforms a simple index. If you would invest in individual stocks or high-fee unit trusts, leaving CPF in OA is almost certainly better.
Only the balance above S$20,000 is eligible for CPFIS investment. The first S$20,000 earns an extra 1% (3.5% effective). Investing amounts close to the S$20,000 floor removes this bonus without meaningful investment scale.
CPF OA and SA balances are guaranteed by the government. CPFIS investments are not. If your CPFIS portfolio falls 30%, you have permanently lost CPF funds that cannot be recovered by contributions alone. This is not a hypothetical — many Singaporeans who invested CPF OA in equities during 2007–2008 saw significant losses that took years to recover, while those who left funds in OA continued earning 2.5% throughout.
Should you invest your CPF or leave it?
The answer depends on your age, OA balance, investment knowledge, and retirement goals. Ask Franky to work through your specific situation.
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