CPF and SRS in a DIY Portfolio: The Rules, the Limits and the Hurdle to Beat

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Last updated: 16 October 2026 · By Spencer Li, CFTe

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You can use CPF and SRS money in a DIY portfolio, but each comes with its own rules, and CPF comes with a hurdle. CPF Ordinary Account money earns 2.5% a year with no effort and no market risk. If your investments can’t reliably beat that after costs, leaving the money where it is may be the better choice.

SRS works differently. Money you put in cuts your taxable income, grows without tax while it stays inside, and is only partly taxed when you take it out at retirement age. The catch is that it is locked up, and taking it out early costs a 5% penalty on top of full tax.

Every rule below is quoted from CPF Board and the Ministry of Finance as read on 16 October 2026. These rules change, so check the live pages before you act.

What is the hurdle your CPF money has to beat?

CPF interest. CPF Board’s interest page, last updated 15 September 2026, gives the Ordinary Account rate “from 1 October 2026 to 31 December 2026” as “2.5% per annum”, which is also the legislated minimum. The Special, MediSave and Retirement Accounts earn “4% per annum”, with that floor in place “until 31 December 2027”.

There is a second, smaller hurdle. CPF pays “extra interest on the first $60,000 of your combined balances, which is capped at $20,000 for Ordinary Account (OA)”. Moving OA money into investments lowers your balance, so it may also reduce the extra interest you earn.

Here is what the hurdle looks like in a hypothetical case: SGD 10,000 left alone for 20 years.

The OA money compounds to more than SGD 16,000 for doing nothing. An investment has to beat that after every fee, every year, and through the bad years too. CPF Board puts it bluntly on its own page: “Only invest your CPF savings if you’re confident of earning more than the CPF interest.”

How much CPF can you invest under CPFIS?

Less than your whole balance. The page for the CPF Investment Scheme, known as CPFIS, was last updated 27 August 2026. It sets out who can use it. You need to be “at least 18 years old”, “not an undischarged bankrupt”, have “more than $20,000 in your OA” and/or “more than $40,000 in your SA”, and “have completed the CPFIS Self-Awareness Questionnaire (SAQ)”.

Then there are 2 limits. First, “You can invest your OA savings after setting aside $20,000 in your OA.” Second, “you can only invest up to 35% and 10% of your investible savings in stocks and gold”. CPF defines investible savings as “the sum of your OA balance and the amount of CPF you have withdrawn for investment and education.”

Here is how that plays out in a hypothetical case. Say your OA holds SGD 80,000 and you have never withdrawn any for investment or education.

1. You must keep SGD 20,000 in the OA, so up to SGD 60,000 is investable.
2. Stocks are capped at 35% of SGD 80,000, which is SGD 28,000.
3. Gold is capped at 10% of SGD 80,000, which is SGD 8,000.

The rest of the SGD 60,000 can only go into the other products CPFIS allows. Your own figures will differ, so check them in your CPF account before you plan around them.

For the SA, CPF Board says “You can invest your SA savings after setting aside $40,000 in your SA.” That applies only before 55, because at 55 CPF says “your Special Account will subsequently be closed”. With the SA earning 4%, the hurdle there is higher still.

What does CPF Board say about choosing products?

It stays neutral. CPF Board states that it “does not endorse any product providers or investment products”. To invest OA savings, you open a CPF Investment Account with one of its agent banks. SA savings need no such account. Either way, the choice of what to buy is yours.

For a DIY investor, that usually means low-cost index funds. How to choose an index ETF covers what to look at. If you are thinking of gold with CPF money, the 10% limit applies, and should you own gold covers the wider case.

How does SRS work, and what are the limits?

The Supplementary Retirement Scheme, or SRS, is a voluntary account. The Ministry of Finance page, last updated 15 April 2026, sets the yearly contribution caps at “$15,300 for Singapore Citizens and Permanent Residents” and “$35,700 for foreigners”. You can contribute “by 31 December each year”.

The tax rules are the reason people use it. MOF says every dollar contributed “reduces your taxable income, subject to the annual SRS contribution cap and up to the annual personal income tax relief cap of $80,000”. It adds that “Investments returns from your SRS funds are not taxed prior to withdrawal.”

The withdrawal rules decide whether that is a good deal for you. If you withdraw on or after the statutory retirement age that applied when you first contributed, MOF says “only 50% of the amount withdrawn is taxable”, and “You can also spread withdrawals over 10 years”. Before that age, “Withdrawals are fully taxable and incur a 5% penalty.”

So SRS suits money you are sure you won’t need until retirement. How much tax it saves depends on your income bracket now and later, which is worth working out with your own numbers before you commit.

What can you buy with SRS money?

MOF lists “Shares, unit trusts, bonds, fixed deposits”, “Certain life insurance products (subject to limits)” and “Exchange Traded Funds (ETFs)”. It is explicit that “Direct property investments are not allowed.” MoneySense’s ETF guide confirms that SRS money can be used to buy ETFs listed on SGX.

One thing catches people out. If you contribute for the tax relief and then leave the money uninvested, you miss the second benefit MOF lists, which is tax-free growth on your investment returns.

How do CPF and SRS fit into a DIY portfolio?

Treat them as part of one portfolio, with different locks on different parts. Personally, I would decide the overall split first, then decide which account holds which piece.

A simple way to think about it is that CPF already behaves a lot like a bond. It pays a minimum rate set by law, and its value doesn’t fall in a crash. So if a large part of your wealth sits in CPF, you may be able to hold more stocks in your cash and SRS accounts than you would otherwise, because the CPF part is doing the steady work. How to split stocks and bonds goes through that decision, and the DIY guide to building your investment portfolio has the full build.

And if a policy you were sold is funded from CPF, when surrendering an ILP makes sense covers the questions to ask first.

If you trade as well as invest, the free 15-Minute Swing Trader’s Checklist is at the end of this post.

Have you worked out what your CPF money would earn if you left it alone, and are you sure you can beat it?

FAQ

How much of my CPF OA can I invest?

Under CPFIS you must first set aside SGD 20,000 in your OA. Stocks are capped at 35% and gold at 10% of your investible savings, which CPF defines as your OA balance plus what you have withdrawn for investment and education.

What is the CPF OA interest rate?

CPF Board gives 2.5% a year for 1 October to 31 December 2026, which is also the legislated minimum. Check the CPF website for the current quarter.

What is the SRS contribution limit?

MOF sets it at SGD 15,300 a year for Singapore Citizens and Permanent Residents and SGD 35,700 for foreigners, as of its page updated 15 April 2026.

What happens if I withdraw SRS money early?

MOF says withdrawals before the statutory retirement age are fully taxable and incur a 5% penalty. Withdrawals on medical grounds get the 50% concession, and up to SGD 400,000 can be tax-exempt on death or terminal illness.

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About the author. Spencer Li is the founder of Synapse Trading and a Certified Financial Technician (CFTe). His trade log is public: every trade since April 2024, dated, losses left in.

Educational content only, not personalised financial advice. Trading carries risk, including loss of capital. Past performance is not indicative of future results. Synapse Trading is not licensed or regulated by MAS.

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