Treasury bills (T-bills) in Singapore are short-term debt issued by the government through the Monetary Authority of Singapore. You lend money for six months or one year, the government pays you back the full face value at the end, and the gap between what you pay and what you get back is your return. Whether you should buy them depends on when you need the cash and what else you could do with it.
This guide breaks down what T-bills are, how the auction and yield actually work, the difference between competitive and non-competitive bids, and the practical question every young Singaporean asks: is parking money here better than leaving it in a savings account or buying a Singapore Savings Bond?
What a Treasury bill actually is
A T-bill is an IOU from the Singapore government. You do not earn a monthly interest payment the way a fixed deposit pays you. Instead, you buy the bill at a discount to its face value and receive the full face value when it matures. The difference is your yield.
Say a six-month T-bill is issued at a yield of around 3% per year. You might pay about $985 for a bill with a face value of $1,000. Six months later you get $1,000 back. The $15 difference, annualised, is roughly that 3%. The government publishes the official details and tenors on the MAS T-bills page for individuals.
Two things make T-bills attractive to first-time investors. They are backed by the Singapore government, which carries one of the highest credit ratings in the world, so the chance of not being repaid is extremely low. And the minimum is small: you can buy from $1,000, in multiples of $1,000.
The tenors you can buy
Singapore issues two T-bill tenors: the six-month bill and the one-year bill. The six-month is auctioned roughly every two weeks, and the one-year every three months. The exact dates are listed on the MAS auctions and issuance calendar, so you can plan when to put in an order.
How the auction and yield work
T-bills are sold through a uniform-price auction. Everyone who wins the auction gets the same yield, called the cut-off yield, no matter what they personally bid. MAS explains the full mechanics on its page covering how SGS auctions are conducted.
Here is the part that trips people up. The yield is set by demand at the auction, not by the government in advance. When a lot of money chases a fixed amount of bills, the cut-off yield drops. When demand is thin, the yield rises. So the return you lock in is whatever the auction produces on that day. You will not know the exact figure until after the auction closes.
You also do not pay the full face value upfront in the way you might expect. You commit the face amount, and after the auction the discount is refunded to you. If you applied for $10,000 of bills at a cut-off yield that prices them at $9,850, the $150 difference is credited back to your account shortly after issuance.
Competitive versus non-competitive bids
When you apply, you choose one of two bid types. This choice matters more than most beginners realise.
| Bid type | What you specify | What you get | Best for |
|---|---|---|---|
| Non-competitive | Only the dollar amount you want | You accept the cut-off yield set by the auction. Allotted first, but if total non-competitive demand is high you may get a partial fill on a pro-rata basis. | Beginners who just want the going rate |
| Competitive | The amount and the minimum yield you will accept | You get an allotment only if your stated yield is at or below the cut-off. Bid too high and you get nothing. | People with a firm view on rates |
For most young investors, a non-competitive bid is the sensible default. You are saying "give me the market rate, whatever it turns out to be." The trade-off is that non-competitive applications are capped at 40% of the total issuance, and if that ceiling is hit, everyone in that bucket is scaled down proportionally. In practice this rarely leaves you with nothing, but you might not get your full requested amount.
How to buy T-bills in Singapore
You buy T-bills through the three local banks, and the channel depends on which pocket of money you are using.
- Cash: apply through DBS/POSB, OCBC, or UOB using internet banking or an ATM. You need an individual CDP securities account linked to one of these banks, because cash T-bills are held in CDP.
- SRS: if you have a Supplementary Retirement Scheme account, apply through your SRS operator bank's internet banking. The bills sit in your SRS account, not CDP.
- CPF: you can use CPF Ordinary Account or Special Account savings under the CPF Investment Scheme. You apply through your CPFIS agent bank. Read the rules first on the CPF page about investing your CPF savings, because using CPF-OA money only makes sense if the T-bill yield clearly beats the 2.5% the OA already earns.
Whichever channel you use, get your application in before the auction's closing time, which is usually around noon on the auction day or the day before. Miss the cut-off and you wait for the next issue.
The fees and the small print
There is a transaction fee per application charged by the bank, typically a few dollars for cash, plus separate CDP or CPFIS service charges if you go those routes. These are small but they eat into a tiny investment, so buying $1,000 of T-bills to chase a fraction of a percent extra is often not worth the hassle. The interest you earn on Singapore government securities is not taxable for individuals, which IRAS confirms on its page on what income is taxable and what is not.
T-bills versus Singapore Savings Bonds
This is the comparison that matters most if you are early in your career and deciding where to put a few thousand dollars. Both are government-backed and both start at $1,000, but they behave differently.
| Feature | T-bill | Singapore Savings Bond (SSB) |
|---|---|---|
| Tenor | 6 months or 1 year, fixed | Up to 10 years, but you can exit any month |
| Return | One cut-off yield set at auction | Step-up: interest rises the longer you hold |
| Getting money out early | Sell on the secondary market (price not guaranteed) | Redeem any month at face value, no loss of principal |
| How return is paid | Discount, paid at maturity | Coupons paid every six months |
| Best when | Short rates are high and you have a fixed timeline | You want flexibility and to lock in over years |
The short version: a T-bill is the better fit when you know you will not need the money for six months or a year and short-term rates are attractive. The SSB wins when you value being able to pull your cash out any month without a penalty. If you want the full picture on the bond side, read our guide on how Singapore Savings Bonds work before you decide. You can also compare both directly on the MAS Singapore Savings Bonds page.
So should you buy them?
For a young Singaporean, T-bills are a tool, not a goal. They make sense for money you have already set aside and will not touch for a fixed period, such as a sum earmarked for a course fee next year or a chunk of savings sitting idle in a low-interest account.
They are a poor fit for two things. The first is your emergency fund, which needs to be reachable on any day, not locked until maturity. Build that first using a high-interest savings account, as we cover in how to build an emergency fund as a fresh graduate. The second is long-term wealth building. A six-month bill cannot grow your money over decades the way a diversified portfolio can, which is why learning to invest properly matters more than rate-chasing. If you are starting from zero, our free masterclass walks through the basics before you commit any cash.
One practical rule: only use CPF-OA money for a T-bill if the auction yield comfortably clears the 2.5% your OA already earns, and remember the small charges that come with the CPFIS route. For cash you genuinely will not need soon, a non-competitive bid for the going rate is a clean, low-risk place to park it. As of June 2026, recent six-month T-bill cut-off yields have hovered in the low-to-mid 2% range, but always check the latest auction result before you assume a figure, because the rate moves with every issue.
Frequently asked questions
Can I lose money on a Singapore T-bill?
If you hold the bill to maturity, you get the full face value back, so you do not lose your principal. You could lose money only if you sell early on the secondary market and the price has fallen since you bought in. For most beginners who hold to maturity, the principal is effectively safe.
What is the minimum amount to buy a T-bill?
The minimum is $1,000, and you apply in multiples of $1,000. That low entry point is part of why T-bills are popular with first-time investors, though the bank's transaction fee makes very small applications less worthwhile.
How is the T-bill interest paid to me?
You do not receive a separate interest payment. You buy the bill below its face value, and the discount is refunded to you shortly after issuance. At maturity you receive the full face value, and the difference is your return. For Singapore government securities, that return is not taxable for individuals.
Is a T-bill better than a fixed deposit?
It depends on the rates on offer at the time. T-bills are backed by the government rather than a bank, and the interest is not taxed, but a fixed deposit may sometimes pay a higher headline rate with no transaction fee. Compare the actual yield after fees against the fixed deposit rate before deciding, and factor in that a T-bill ties up your money until maturity.
T-bills are a useful building block once you understand them, but they are one piece of a bigger picture. If you want to learn how saving, investing, and earning fit together early in your career, apply to join FINternship and work through it with a mentor.