T-Bill Singapore

Singapore Treasury Bills — How They Work, Current Yields & CPF Tips — Singapore investing guide with key metrics, examples and 2026 data.

A Singapore T-Bill (Treasury Bill) is a short-term Singapore Government Securities (SGS) instrument issued by the Monetary Authority of Singapore (MAS), with tenors of 6 months or 1 year, sold at a discount and redeemed at face value — making the difference your return.

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 Singapore Treasury Bill — commonly called a T-Bill — is a short-term debt instrument issued by the Singapore Government through the Monetary Authority of Singapore (MAS). Unlike bonds that pay periodic coupons, T-Bills are issued at a discount to their face value and redeemed at full face value upon maturity. The difference between the purchase price and the face value is your return — no coupon payments, no reinvestment risk.

MAS issues T-Bills with two standard tenors: 6-month and 1-year. They are denominated in Singapore dollars (SGD), with a minimum investment of SGD 1,000. Because they are backed by the Singapore Government — which carries an AAA credit rating from S&P, Moody’s and Fitch — T-Bills are considered one of the safest instruments available to retail investors in Singapore.

T-Bills are auctioned via a competitive and non-competitive bidding process. Retail investors can apply through ATMs, internet banking, or through the Central Depository (CDP) via local banks like DBS, OCBC, and UOB. You can also use your CPF Ordinary Account (OA) or Supplementary Retirement Scheme (SRS) funds to invest in T-Bills, making them a powerful tool for maximising returns on your retirement savings. The Singapore Savings Bond (SSB) is a related instrument, but T-Bills offer shorter tenors and potentially higher yields in a rising rate environment.

Auctions are held roughly every two weeks for 6-month T-Bills and monthly for 1-year T-Bills. The MAS website publishes upcoming auction dates, cut-off yields and allotment results — all publicly available and free to monitor.

How It Works

T-Bills are priced via a uniform-price auction. At each auction, MAS sets a total issuance amount. Competitive bidders (institutional investors) submit yield bids, and MAS accepts bids from the lowest yield upward until the issue is fully allocated. The yield at which the final allocation is made is called the cut-off yield — and all successful bidders, whether competitive or non-competitive, receive this rate.

As a retail investor, you almost always apply as a non-competitive bidder — meaning you accept whatever cut-off yield MAS determines. This is the simpler, safer route. You submit your application amount and receive the allotment at the prevailing cut-off yield.

Example calculation: Suppose the 6-month T-Bill cut-off yield is 3.50% per annum. On a SGD 10,000 application:

• Discount = SGD 10,000 × 3.50% × (182/365) ≈ SGD 174.52
• You pay ≈ SGD 9,825.48 at application
• You receive SGD 10,000 at maturity (6 months later)
• Net return: SGD 174.52 over 6 months

T-Bill interest is exempt from Singapore income tax for individual investors, making the effective yield slightly better than equivalent pre-tax returns from some other instruments. If applying via CPF OA, MAS deducts the discounted price from your OA — you receive the face value back into your OA at maturity, and CPF Board credits the difference (your return) as well.

T-Bill Singapore in Context

Singapore T-Bills experienced a surge in retail investor interest from 2022 onwards, when MAS raised interest rates in response to global inflation. At their peak in 2023, 6-month T-Bill cut-off yields hit approximately 3.97% — the highest levels seen in over a decade. This prompted many Singaporeans to shift idle CPF OA funds, SRS money, and cash savings into T-Bills, as yields far exceeded the standard 2.5% CPF OA interest rate.

As at Q1 2026, 6-month T-Bill yields have moderated to around 2.8%–3.2% in line with global rate trends, but they still offer competitive risk-free returns compared to bank fixed deposits for shorter tenors. The MAS publishes each auction’s results within hours of the close, including the cut-off yield, total applications received, and allotment amounts.

One Singapore-specific consideration: when you use CPF OA funds to invest in T-Bills, your CPF OA stops earning the standard 2.5% p.a. interest for the period the funds are invested. So the T-Bill cut-off yield must exceed 2.5% for the switch to be worthwhile. When yields are near or below this threshold, it may not make sense to invest CPF OA funds in T-Bills at all. This is a key planning consideration our CPF OA/SA/MA Calculator can help you model.

MAS also issues longer-dated Singapore Government Securities (SGS bonds) with tenors ranging from 2 to 50 years. These carry coupon payments and are used by institutional investors for duration management — but for most retail investors focused on capital preservation and yield, T-Bills remain the go-to short-term instrument.

Real-World Examples

Here are some concrete snapshots from recent T-Bill auctions in Singapore:

• 6-month T-Bill (February 2026): Cut-off yield of 3.04% p.a. Total applications of SGD 12.8 billion versus an issuance of SGD 7.0 billion — oversubscribed at 1.83x. Non-competitive applicants received full allotment.
• 1-year T-Bill (January 2026): Cut-off yield of 2.98% p.a. Total issuance of SGD 3.5 billion. Retail investors via ATM/internet banking made up roughly 15% of total non-competitive bids.
• CPF OA scenario (Q4 2025): A Singapore investor with SGD 50,000 in CPF OA invested SGD 40,000 in a 6-month T-Bill at 3.18% p.a., earning approximately SGD 624 over 6 months versus the standard CPF OA interest of SGD 499 — a net pickup of SGD 125 after accounting for the administrative effort.

Banks also sell T-Bills through their investment platforms. DBS iBanking, OCBC i-Banking, and UOB TMRW all provide application portals. The entire process from application to allotment notification typically takes 1–2 business days after the auction closes.

Why It Matters for Investors

For Singapore retail investors, T-Bills serve as the benchmark for risk-free short-term returns. They help you answer a critical question: is your idle cash earning its keep? With yields above bank savings account rates in most market environments, T-Bills offer a simple, low-cost way to put your money to work without taking equity or credit risk.

T-Bills fit particularly well into a laddering strategy — where you stagger maturities across multiple auction dates so that a portion of your capital becomes liquid every 6 weeks or so. This lets you maintain liquidity without sacrificing the entire yield pickup.

For those planning for retirement, T-Bills can complement a broader portfolio that includes dividend-paying S-REITs and ETFs. If you are building a passive income strategy, consider reading our guide on passive income in Singapore 2026 and using our Retirement Planning Calculator to see how risk-free income from T-Bills can anchor your retirement income floor.

Unlike unit trusts or ETFs, T-Bills have no management fees, no bid-ask spreads, and no market risk if held to maturity. They are the purest expression of capital preservation in the Singapore context.

Frequently Asked Questions

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