T-Bill Singapore

Singapore Treasury Bills — yields, application & 2026 rates

A Singapore T-Bill (Treasury Bill) is a short-term government debt instrument issued by the Monetary Authority of Singapore (MAS) with maturities of 6 months or 1 year. Sold at a discount to face value, investors earn the difference as interest — offering a low-risk, MAS-backed return competitive with bank deposits.

Not financial advice. All figures are for educational reference only. Data as at Q1 2026 unless noted.

Table of Contents

What Is a T-Bill in Singapore?

A Treasury Bill — commonly called a T-Bill — is a short-term debt security issued by the Singapore government through the Monetary Authority of Singapore (MAS). Unlike bonds that pay regular coupon interest, T-Bills are zero-coupon instruments: they are issued at a discount to their face value, and investors receive the full face value at maturity. The difference between the purchase price and face value represents your return.

MAS currently issues T-Bills in two tenors: 6-month (182-day) and 1-year (364-day). They are backed by the full faith and credit of the Singapore Government, which holds an AAA sovereign credit rating — making T-Bills one of the safest investments available to retail investors in Singapore.

T-Bills are popular with Singapore retail investors looking for a safe, liquid alternative to fixed deposits (FDs). They are accessible via three channels: through participating banks (DBS, OCBC, UOB, Citibank, Standard Chartered, HSBC), through CDP (Central Depository Pte Ltd) accounts, or via CPF Investment Scheme (CPFIS) using Ordinary Account (OA) funds.

The minimum application amount is SGD 1,000, with subsequent multiples of SGD 1,000. Applications are submitted via ATM, internet banking, or mobile banking of participating banks, or directly through MAS e-applications. T-Bill auctions are typically held every two weeks for the 6-month tenor and monthly for the 1-year tenor.

How It Works

Singapore T-Bills operate on a uniform-price auction system. Here’s how it works step by step:

1. Application: Retail investors submit non-competitive bids — meaning you accept whatever cut-off yield is set by the auction. Institutional investors may submit competitive bids specifying their desired yield.

2. Auction Settlement: MAS sets a single cut-off yield after receiving all bids. Non-competitive bids are always filled first (up to SGD 1 million per investor per auction), then competitive bids from lowest to highest yield until the issue is fully subscribed.

3. Discounted Purchase: If the cut-off yield for a 6-month T-Bill is 3.5% p.a., you would pay approximately SGD 982.80 for each SGD 1,000 face value bill. At maturity (6 months later), you receive SGD 1,000 — a return of SGD 17.20 per SGD 1,000 invested.

Formula: Purchase Price = Face Value ÷ (1 + Yield × Days/365)

Example: SGD 1,000 ÷ (1 + 0.035 × 182/365) = SGD 982.99

4. Maturity: T-Bills are automatically redeemed into your bank or CDP account at maturity. There is no action required from the investor.

CPF-OA application: If applying via CPFIS-OA, funds are deducted from your OA balance. On maturity, proceeds are credited back to your OA — effectively “parking” OA money at T-Bill yields rather than the standard 2.5% OA rate. See our CPF investment strategy guide for when this makes sense.

T-Bills in Singapore

Singapore T-Bills surged in popularity from 2022 onward as global interest rates rose sharply. By late 2022 and through 2023, 6-month T-Bill cut-off yields reached as high as 4.4% p.a. — well above the then-prevailing bank fixed deposit rates. This triggered a wave of retail investor interest, with MAS reporting oversubscription rates of 2–3x in many auctions.

As at Q1 2026, with the US Federal Reserve having cut rates through 2025, Singapore T-Bill yields have moderated. 6-month T-Bills are yielding in the range of 3.0%–3.4% p.a., while 1-year T-Bills offer slightly higher yields. These remain competitive versus most bank savings accounts in Singapore.

Key Singapore-specific rules to note:

• CPFIS-OA eligible: You can invest up to 35% of your investible savings (OA minus SGD 20,000 minimum) in T-Bills via CPFIS. The CPF OA baseline rate is 2.5%, so T-Bills only make sense if the cut-off yield exceeds 2.5% — which it does comfortably in the current environment.
• SRS eligible: T-Bills can also be purchased using SRS funds, making them a tax-efficient parking option.
• Tax treatment: T-Bill returns are not subject to Singapore income tax for individual investors — a meaningful advantage over equivalent returns in other instruments.
• Liquidity: T-Bills can be sold before maturity on the secondary market via SGX, though prices may vary from face value depending on prevailing rates.

Real-World Examples

To illustrate how T-Bill investing works in practice, consider two scenarios as at Q1 2026:

Scenario A — Cash Investment: An investor applies for SGD 50,000 of the latest 6-month T-Bill auction with a cut-off yield of 3.2% p.a. They pay approximately SGD 49,211 and receive SGD 50,000 at maturity 182 days later — a return of SGD 789, tax-free. Annualised return: 3.2% p.a.

Scenario B — CPF-OA Investment: An investor has SGD 80,000 in their CPF OA (above the SGD 20,000 minimum buffer). They invest SGD 50,000 in a 6-month T-Bill via CPFIS at the same 3.2% yield. They earn 3.2% on these funds versus 2.5% CPF OA rate — incremental gain of 0.7% p.a., or approximately SGD 350 over the 6-month tenor.

The opportunity cost to consider: CPF OA funds earn interest from the 1st of the application month only when invested back in CPF. During the T-Bill application and settlement period (a few days), no interest accrues. For most investors at current yields, the net gain is still positive.

For comparison, a 6-month bank fixed deposit with DBS/POSB or OCBC as at Q1 2026 offers approximately 2.5%–2.8% p.a. for similar tenors — meaning T-Bills continue to offer a modest yield advantage with equivalent or better credit quality.

Why It Matters for Investors

For Singapore retail investors, T-Bills serve several important portfolio functions:

1. Cash management: If you have savings sitting in a low-yield account while waiting to deploy into equities or REITs, T-Bills offer a risk-free return on idle cash. Given Singapore’s Singapore Savings Bonds have lower flexibility and the current SSB rate may differ from T-Bill yields, comparing both is worthwhile.

2. CPF OA optimisation: For investors who have excess CPF OA funds above the investment-ready threshold, T-Bills can beat the base 2.5% OA interest rate — a meaningful improvement for six-figure OA balances. Read our full CPF investment strategy guide for the full analysis.

3. Retirement planning: As part of a conservative retirement portfolio, T-Bills help preserve capital while generating a predictable return. Use our retirement calculator to model how much of your portfolio should be in low-risk instruments at different stages of life.

4. Diversification: T-Bills have near-zero correlation with equities and S-REITs, making them a useful stabiliser in a portfolio that includes Singapore REITs or dividend stocks.

The main downside: T-Bills offer no capital appreciation and yields are set by market forces — meaning when rates drop, your roll-over return will be lower. For long-term investors, a mix of T-Bills for the short-term cash bucket and REITs/equities for growth is typically more optimal than all-T-Bills.

Frequently Asked Questions

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