CPF Ordinary Account
Singapore CPF Retirement Planning — Singapore investing guide with key metrics, examples and 2026 data.
The CPF Ordinary Account (OA) is one of three main CPF accounts for Singapore citizens and PRs, earning a base interest rate of 2.5% per annum. It can be used for housing purchases, education fees, and CPF Investment Scheme (CPFIS) approved investments.
Not financial advice. All figures are for educational reference only. Data as at Q1 2026 unless noted.
Table of Contents
What Is CPF Ordinary Account?
The CPF Ordinary Account is part of Singapore’s Central Provident Fund system, a compulsory savings scheme administered by the CPF Board. Every working Singapore citizen and Permanent Resident contributes a portion of their monthly salary to CPF, split across three main accounts: the Ordinary Account (OA), the Special Account (SA), and the MediSave Account (MA).
The OA receives the largest share of CPF contributions for younger workers. For employees aged 35 and below, roughly 23% of their total CPF contribution rate flows into the OA. The OA’s primary purpose is to fund housing and education, making it the most flexible of the three accounts in terms of approved uses before retirement age.
Beyond housing and education, the OA also feeds into the CPF LIFE scheme at retirement, and can be voluntarily transferred to the Special Account to earn a higher 4% rate — though this transfer is irreversible. Understanding how OA balances grow over a career is foundational knowledge for any Singapore retirement plan.
How It Works
The OA earns a base rate of 2.5% per annum, pegged to the 12-month fixed deposit and savings rates of major local banks, with a legislated floor at 2.5%. The CPF Board pays an additional 1% p.a. on the first S$60,000 of combined CPF balances (subject to a S$20,000 cap on OA balances receiving the extra 1%), boosting returns for lower balances.
Contribution rates are tiered by age. For employees aged 55 and below, the total CPF contribution rate is 37% of ordinary wages (20% employee, 17% employer). Of this, approximately 62% flows into the OA for workers aged 35 and below. As workers age, more contributions shift toward MediSave and the Special Account.
Example: A 30-year-old earning S$5,000/month contributes S$1,850 total to CPF monthly. Approximately S$1,150 flows into the OA, S$475 into the Special Account, and S$225 into MediSave. Under CPFIS-OA, OA funds above the first S$20,000 can be invested in MAS-approved unit trusts, Singapore government bonds, and selected ETFs.
CPF Ordinary Account in Singapore
In the Singapore housing market, the OA is most commonly used for HDB flat purchases — covering downpayments, stamp duties, and monthly mortgage repayments. When you sell your flat, you must refund the OA principal used plus accrued interest at 2.5% p.a., making it effectively a loan from your future self.
Under the CPF Investment Scheme (CPFIS), OA funds above the first S$20,000 can be invested in approved instruments including unit trusts, Singapore Savings Bonds, and selected ETFs. The first S$20,000 must remain in the OA earning the guaranteed 2.5% rate.
As at 2026, the OA interest rate remains at 2.5% p.a. This compares favourably to bank savings accounts during periods of low interest rates. A key ongoing debate among Singapore investors: invest OA funds in CPFIS or transfer to the Special Account for the higher 4% rate? The irreversible nature of the OA-to-SA transfer makes this decision consequential.
Real-World Examples
Consider James, a 40-year-old with S$120,000 in his CPF OA. He used S$80,000 to partially service his HDB flat. The remaining S$40,000 earns 2.5% p.a. Of this, only S$20,000 is eligible for CPFIS investment (above the S$20,000 floor). James invests this S$20,000 in the Nikko AM STI ETF via CPFIS-OA.
Over five years at 6% annualised, this S$20,000 grows to S$26,800 — outperforming the 2.5% OA rate by S$4,000. But if the ETF returns only 1%, James ends up with S$21,000, underperforming the guaranteed 2.5% rate by S$1,500. This illustrates the core CPFIS trade-off: competing against a risk-free guaranteed 2.5%.
As at Q4 2025, the SGX data shows that most Singapore retail investors use their OA primarily for housing, leaving relatively small balances for CPFIS investing.
Why It Matters for Investors
Your CPF OA balance is one of the most powerful compounding assets a Singapore investor has. The guaranteed 2.5% return, while modest, is risk-free and tax-exempt — a significant advantage over fixed deposits or money market funds where interest may be taxable for high earners.
A S$100,000 OA balance at 2.5% p.a. grows to approximately S$128,000 over 10 years. Combined with the extra 1% on the first S$20,000 eligible for that rate, the effective return improves further for smaller balances. Understanding the OA also underpins smarter housing decisions: every dollar of OA used for housing must be refunded with accrued interest, reducing compounding retirement savings.
Use our Retirement Calculator and CPF OA/SA/MA Calculator to model different OA drawdown scenarios. For CPF investing strategy, see our CPF Investment Strategy guide.
Frequently Asked Questions
What is the CPF Ordinary Account interest rate in 2026?
The CPF OA earns a base rate of 2.5% per annum, with a legislated floor ensuring it never falls below this level. An additional 1% p.a. is paid on the first S$60,000 of combined CPF balances, subject to a S$20,000 cap on OA funds receiving this extra interest.
Can I withdraw money from my CPF OA anytime?
No. CPF OA funds are not freely withdrawable. They can be used for specific approved purposes — HDB housing, education, and CPFIS investments. Most OA funds are accessible in cash only from age 55, when you can withdraw balances above the required Retirement Account amount after setting aside the Full Retirement Sum.
What is the difference between CPF OA and CPF SA?
The OA earns 2.5% p.a. and can be used for housing and CPFIS investments. The Special Account (SA) earns 4% p.a. but is locked for retirement purposes. You can transfer OA funds to SA to earn the higher rate — but this transfer is irreversible.
How much of my CPF contribution goes into the OA?
For employees aged 35 and below, approximately 62% of total CPF contributions flow into the OA. This share decreases as you age: by 55-60, the OA allocation drops significantly as more contributions shift toward MediSave and retirement savings. Exact percentages are published by CPF Board.
Can I invest my CPF OA money in stocks or ETFs?
Yes. Under CPFIS-OA, you can invest OA savings above the first S$20,000 in MAS-approved instruments including unit trusts, Singapore Savings Bonds, and selected ETFs. Only investments expected to beat the 2.5% floor are advisable, since you forgo the guaranteed return when you invest.
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