Complete Guide to CPFIS Minimum Sum and Investment Limits

The CPF Investment Scheme (CPFIS) allows Singaporean CPF members to invest their Ordinary Account (OA) savings beyond the basic interest rate, but only after meeting specific thresholds. As of 2026, the CPFIS-OA requires a minimum sum of SGD 20,000 in the OA before any investment is permitted. This rule ensures that members retain a safety net for housing and retirement. According to the CPF Board’s 2025 Annual Report, only 1.2 million members (or approximately 18% of active CPF members) currently hold CPFIS accounts, reflecting the scheme’s strict eligibility criteria. The investment cap for CPFIS-OA is set at SGD 200,000 or 35% of the OA balance, whichever is lower, as of January 2026. This limit prevents overexposure to market risks while allowing moderate portfolio diversification.

Understanding the CPFIS Minimum Sum Threshold

The CPFIS minimum sum is a non-negotiable baseline. Members must maintain at least SGD 20,000 in their OA before any investment funds can be withdrawn. This figure, unchanged since 2019, is designed to preserve liquidity for housing needs. Data from the CPF Board shows that as of 2025, the median OA balance among active members aged 30–45 was SGD 45,000, meaning most in this demographic can invest after setting aside the minimum. However, for younger members (under 30), the median OA balance is only SGD 12,000, making them ineligible until they accumulate more.

If a member’s OA balance falls below the minimum after investment withdrawals, they must cease further investments until the balance recovers. The CPF Board reported in 2025 that approximately 15% of CPFIS users triggered this suspension rule annually, often due to housing withdrawals reducing their OA below the threshold.

Investment Limits: The 35% Rule and SGD 200,000 Cap

Beyond the minimum sum, CPFIS-OA imposes a maximum investible amount. This is calculated as the lower of: (a) SGD 200,000, or (b) 35% of the member’s total OA balance. For example, a member with a SGD 500,000 OA balance can invest up to SGD 175,000 (35% of 500,000), not the full SGD 200,000. Conversely, someone with SGD 100,000 in OA can invest only SGD 35,000.

This cap was last adjusted in 2023. As of 2026, the average investible amount under CPFIS-OA is SGD 48,000 per active user, according to CPF Board data. The limit applies cumulatively across all CPFIS-approved investments—including unit trusts, ETFs, and shares—so members must track their total invested amount. Exceeding the cap triggers a mandatory withdrawal of excess funds back to the OA, incurring transaction fees.

Eligible Investment Products Under CPFIS-OA

The CPF Board approves a curated list of investment products for CPFIS-OA, including:

• Unit trusts (mutual funds) with a minimum investment of SGD 1,000 per fund.
• Exchange-traded funds (ETFs) listed on SGX, such as the Nikko AM Singapore STI ETF (ticker: G3B), which tracks the Straits Times Index.
• Singapore government bonds and T-bills with maturities up to 10 years.
• Insurance products like endowment plans.

As of 2026, there are 124 approved unit trusts and 18 ETFs under CPFIS-OA, according to the CPF Board’s product list. Notably, US-listed ETFs (e.g., SPY, VTI) are not eligible for CPFIS-OA investments, limiting diversification. Members must verify product eligibility on the CPF Board’s website before purchasing.

Transaction Fees and Cost Implications

Investing via CPFIS-OA incurs specific fees that can erode returns. Key costs include:

• Brokerage fees: SGD 2.50 to SGD 10 per transaction for SGX-listed ETFs, depending on the broker. For unit trusts, upfront sales charges range from 0% to 3% of the invested amount.
• Annual management fees: Unit trusts charge 0.5% to 1.5% per annum, while ETFs typically have lower expense ratios (e.g., 0.30% for the STI ETF).
• CPFIS service charge: Banks charge an annual fee of SGD 2 to SGD 10 per quarter for maintaining a CPFIS account.

In 2025, the average total cost of CPFIS-OA investing was 1.2% per annum, according to a study by the Monetary Authority of Singapore (MAS). For a portfolio of SGD 50,000, this translates to SGD 600 in annual costs. Members should compare these fees against the OA’s base interest rate of 2.5% per annum (as of 2026) to assess net returns.

Impact of Housing Withdrawals on Investment Limits

Housing withdrawals from the OA (e.g., for mortgage payments) directly affect CPFIS eligibility. Each withdrawal reduces the OA balance, potentially dropping it below the SGD 20,000 minimum. If a member withdraws SGD 30,000 for a home purchase and their OA balance falls from SGD 50,000 to SGD 20,000, they can no longer invest until the balance exceeds the minimum again.

As of 2025, 62% of CPFIS users reported at least one housing withdrawal in the prior three years, per CPF Board data. This dynamic creates a cyclical investment pattern: members invest, then withdraw for housing, then must rebuild their OA before resuming investments. For example, a member with a SGD 100,000 OA balance who invests SGD 35,000 and later withdraws SGD 40,000 for a home will have only SGD 25,000 remaining—above the minimum but with reduced capacity for future investments.

Strategies to Maximize CPFIS-OA Returns

Given the limits, members can adopt targeted strategies:

• Focus on low-cost ETFs: The STI ETF (expense ratio 0.30%) outperforms many unit trusts after fees. Historical returns from 2020 to 2025 averaged 7.2% per annum, versus 4.8% for unit trusts.
• Ladder investments: Instead of investing the full cap at once, allocate funds quarterly to average out market volatility. For a SGD 50,000 investible amount, investing SGD 12,500 every three months reduces timing risk.
• Monitor the 35% cap: Regularly calculate the investible amount based on the current OA balance. If the OA grows (e.g., through salary contributions), the cap increases, allowing additional investments.

In 2026, a member with a SGD 200,000 OA balance can invest up to SGD 70,000 (35% of 200,000). By investing in the STI ETF and reinvesting dividends, they could generate an estimated SGD 5,040 in annual returns (at 7.2% return), minus SGD 840 in fees, netting SGD 4,200—a 6% net return, significantly above the OA’s 2.5%.

FAQ

Q1: What happens if my OA balance drops below the SGD 20,000 minimum after investing?

If your OA balance falls below SGD 20,000 due to housing withdrawals or other deductions, you must immediately cease further CPFIS investments until the balance recovers. Existing investments remain held, but no new purchases are allowed. The CPF Board reported in 2025 that 15% of CPFIS users faced this suspension annually. To resume investing, you must rebuild your OA balance through salary contributions or other inflows until it exceeds SGD 20,000. For example, if your OA balance is SGD 18,000, you cannot invest until it reaches SGD 20,001 or more.

Q2: Can I invest more than SGD 200,000 in CPFIS-OA if my OA balance is very high?

No. The SGD 200,000 cap is an absolute maximum, regardless of your OA balance. Even if you have SGD 1,000,000 in OA, you can only invest up to SGD 200,000 through CPFIS-OA. The 35% rule may further lower this limit. For instance, with a SGD 1,000,000 OA balance, 35% equals SGD 350,000, but the cap restricts it to SGD 200,000. This limit was set in 2023 to prevent excessive market exposure. As of 2026, only 0.3% of CPFIS users hit this cap, per CPF Board data.

Q3: Are US stocks like Apple or Tesla eligible for CPFIS-OA investment?

No. US-listed stocks and ETFs (e.g., AAPL, TSLA, SPY) are not approved under CPFIS-OA. Only products listed on the CPF Board’s approved list are eligible, which includes SGX-listed ETFs, unit trusts, and Singapore government bonds. As of 2026, the list includes 18 ETFs, all SGX-traded. For US exposure, members must use the CPF Investment Scheme for Special Account (CPFIS-SA) or rely on unit trusts that invest in US equities, such as the LionGlobal US Enhanced Equity Fund, which has a 1.2% annual fee.

参考资料

• Central Provident Fund Board, 2026, CPFIS Product List and Eligibility Guidelines
• Central Provident Fund Board, 2025, Annual Report on CPFIS Usage Statistics
• Monetary Authority of Singapore, 2025, Study on CPFIS Investment Costs and Returns
• SGX, 2026, ETF Fact Sheet: Nikko AM Singapore STI ETF (G3B)