Excess CPF OA money left alone earns a guaranteed 2.5%. Invested through CPFIS in a broad ETF it has historically compounded at 6-7%: turning $20,000 into $70,000 instead of $33,000 over 20 years. The catch list is real; here it is.
Adjust the variables below to simulate outcomes, compare rates, and see real-time projections.
A direct comparison of features, rules, limits, and eligibility requirements.
| Feature / Detail | Leave in CPF OA | Invest in CPFIS ETFs |
|---|---|---|
Return | 2.5% p.a. guaranteed floor (Q3 2026), government-backed | Market returns: broad equities have averaged 6-9% long-run, with 30-40% drawdowns along the way |
What you can invest | Nothing to choose: the CPF Board manages it | Only OA money above $20,000, in CPFIS-approved instruments (SGX-listed ETFs, approved unit trusts) |
Fees | Zero | Agent-bank custody (~$2-$2.50/quarter), per-trade charges, brokerage commission, fund expense ratios |
Where profits go | Stay in OA, compounding at 2.5% | All dividends and sale proceeds flow back into your OA: never to your bank account |
Housing flexibility | Instantly available for HDB downpayment and mortgage servicing | Must sell first; proceeds return to OA and are then usable for housing |
The 4% alternative | Under-55s can instead transfer OA to the Special Account for a guaranteed 4%, but the move is irreversible and the money leaves housing reach | Keeps liquidity: sell anytime and the cash lands back in OA |
Analyze the advantages and drawbacks of each financial product before making a decision.
Ravi, 32, has $40,000 in his OA: $20,000 locked as the untouchable CPFIS floor, $20,000 investable. Leaving the excess at 2.5% grows it to about $32,800 by age 52. Invested in a CPFIS-approved global equity fund netting 6.5%, the same $20,000 reaches roughly $70,500.
The $37,700 difference is not a rounding error: it is nearly twice the original stake, and it is the recurring price of parking long-horizon money at a rate designed for capital preservation. With core inflation historically near 2%, the OA floor holds purchasing power; it does not build it.
The honest counterweight: the 2.5% line on the chart never dips. The 6.5% line is an average drawn through years like 2008 (−40%) and 2020. The gap is real, but it is compensation for holding through exactly those years, which is why the timeline filter matters more than the return projection.
Every excess OA dollar has three destinations. Door one: stay at 2.5%, liquid for housing. Door two: transfer to the Special Account at a guaranteed 4% (floor extended through 31 December 2026), but the transfer is permanently irreversible, the money exits housing reach, and the door only exists before 55, since SA accounts for 55+ were closed in early 2025. Door three: CPFIS, with market risk and market returns, but reversible: sell and the cash is back in OA for a flat.
The 4% door is underrated and oversold at once. For a conservative saver who was never going to invest, converting 2.5% into 4% guaranteed is the single cleanest yield upgrade in Singapore finance. For someone who might upgrade flats in eight years, it is a trap: that money will never again pay a downpayment.
Ranked by expected 20-year outcome on $20,000: CPFIS ETF ~$70,000 (volatile), SA transfer ~$43,800 (guaranteed, locked), OA ~$32,800 (guaranteed, liquid). Pick by which constraint binds you: liquidity, nerves, or neither.
CPFIS charges fixed tolls: an agent-bank custody fee of roughly $2-$2.50 a quarter, a similar charge per transaction, plus brokerage commission on each trade. On a $12,000 lump sum these fees vanish into decimals. On $100 a month they are a wall: roughly $30-$40 a year of fixed costs is an instant 2.5-3% drag. The entire OA floor rate, burned before the market opens.
The practical thresholds: invest in tranches of $1,000-$2,000 or more, or use an integrated platform (Endowus and similar robo-advisors access approved unit trusts without per-trade agent-bank fees) if you want genuine monthly dollar-cost averaging from OA.
Also read the approved list before imagining a portfolio: CPFIS permits vetted SGX-listed ETFs and unit trusts, not US-listed favourites like VOO. The vetted index options are perfectly serviceable for a global or local core; the point of CPFIS investing is boring exposure at scale, not stock-picking with retirement money. Profits, when they come, land back in your OA: this whole exercise raises your CPF's growth rate, not your spending money.
The arithmetic is lopsided over long horizons: $20,000 of excess OA grows to about $33,000 in 20 years at the floor rate, versus roughly $70,000 at a 6.5% net ETF return. But three filters must pass before that upside is yours to chase. First, timeline: OA money earmarked for a flat or mortgage inside 10 years should not meet a stock market. Second, size: fixed CPFIS fees mean investing in chunky tranches ($1,000-$2,000+), not $100 dribbles. Third, the alternative: under-55s can transfer OA to the Special Account for a guaranteed 4%: a better deal than 2.5% for conservative savers, but irreversible and gone from housing reach forever. Investors who pass all three filters and buy boring, diversified, approved index funds are the group CPFIS was actually built for.
Anyone buying property or servicing an HDB loan within 10 years, savers within 5 years of 55, and everyone who would sell in a panic at −30%.
Under-45s with excess OA beyond housing needs, a 10+ year runway, and the discipline to hold a global index fund through full market cycles.
The rules and figures on this page are researched from official primary sources:
