T-bills vs SSB: Which Short-Term Bond Suits Your Cash Flow?

Singapore investors confront a quiet but persistent problem: where to park cash that must remain both safe and accessible. Two government-backed instruments dominate this space—Singapore Government Securities (SGS) Treasury bills (T-bills) and the Singapore Savings Bond (SSB). They share AAA sovereign backing, yet their liquidity profiles and income mechanics diverge sharply. At the 15 February 2026 auction, a six-month T-bill offered a cut-off yield of 3.42%, while the March 2026 SSB (SBMar26) launched with a first-year interest of 2.70% and a 10-year average return of 3.10%. The choice is not about finding the highest headline number; it is about matching an instrument’s cash-flow rules to the timeline of your liabilities.

How T-bills and SSBs Work: A Structural Overview

T-bills are short-dated discount securities issued at prices below their face value, with maturities of six months or one year. An investor pays $98.30 to receive $100 in six months, generating an effective yield fixed at purchase. New issues are sold through a competitive auction; non-competitive bids, capped at 40% of the offering, guarantee an allotment at the auction’s cut-off price. There is no coupon—the return is the difference between the discounted purchase price and the full face value returned at maturity.

SSBs are non-marketable bonds with maturities up to 10 years. Interest is paid every six months as cash into your bank account. The rate structure follows a step-up coupon: the annualised interest rate rises each year, encouraging longer holding periods. Investors can redeem the bond in any month, receiving the full principal plus accrued interest, with no capital loss. The maximum total individual holding is $200,000. An application costs a flat $2 per transaction.

Yield Comparison: Current Numbers in 2026

Yield curves shape the conversation. As of 15 February 2026, the six-month T-bill cut-off yield settled at 3.42%, while the one-year bill from the same month printed 3.28%. These reflect actual auction outcomes and represent the effective yield an investor locks in for the full tenor if held to maturity.

The SBMar26 bond issued on 1 March 2026 offered a first-year interest of 2.70%, rising to 3.10% by year 10. The 10-year average return per annum calculates to 3.10%. On a one-year horizon, the T-bill provides a 70 basis-point premium over the SSB’s opening-year rate. Over a full decade, the SSB’s average return trails the illustrative 10-year SGS bond yield by about 10 basis points, a small concession for its monthly liquidity.

An investor comparing a rolling six-month T-bill strategy with an SSB held for two years must account for reinvestment risk. The first six-month tranche at 3.42% may be followed by a renewal at a lower rate if MAS eases policy. The SSB’s step-up structure locks in all future rates at the time of purchase, eliminating that uncertainty.

Liquidity: When Can You Access Your Cash?

Liquidity is the differentiator. T-bills can be sold on the secondary market through SGX or over-the-counter bond desks. Execution usually takes two to three business days. There is no guaranteed par redemption before maturity. If market yields have risen since purchase, the bill’s price will trade at a discount, crystallising a capital loss. Between October 2025 and February 2026, six-month SGS yields rose from 3.10% to 3.42%, which would have turned an older T-bill into a small but real loss if sold early.

SSBs impose no market-price risk. A redemption request submitted by the 4th last business day of the month is processed at par, with proceeds credited by the 2nd business day of the following month. The maximum gap between request and cash in hand is around five business days. There is no penalty, no partial loss of principal. This makes the SSB functionally a high-yield savings account with rate lock. The cost of that liquidity is the lower early-year yield.

Reinvestment Risk and Strategy: Ladder or Lock-In?

A six-month T-bill ladder splits a cash pool into three tranches maturing every two months, rolling into new six-month bills. This creates a reinvestment cycle that smoothes rate changes. At the February 2026 yield of 3.42%, a $30,000 ladder generates approximately $516 every two months in maturing proceeds before reinvestment. If rates decline by 50 basis points over the next auction cycle, the new rung will still receive a competitive short-term rate, cushioning the impact.

An SSB works as a long-duration buffer with an escape hatch. A $50,000 allocation to SBMar26 delivers $1,350 in the first year, with the option to redeem at par should a better opportunity appear. Because the principal is never at risk, an investor can treat the instrument as a modular component of an emergency fund. The downside is that the rate curve is fixed at issuance; an investor cannot benefit from rising rates without redeeming and applying for a new issue, subject to the monthly allocation cap.

Tax and Transaction Costs

Both instruments are exempt from Singapore income tax for individuals. There is no capital gains tax. The net return is exactly what the yield statement shows.

Cost-to-entry differs. A T-bill application via DBS/POSB, OCBC, or UOB internet banking using a non-competitive bid attracts zero fees. Secondary market sales incur brokerage charges, typically 0.1% to 0.25% of trade value, plus clearing fees. SSB applications attract the flat $2 fee per request, which is waived for redemptions. For a $10,000 investment, the SSB’s one-time cost represents 0.02%—effectively zero—while a T-bill purchase costs nothing. These trivial charges should not drive the decision; yield differentials matter far more.

Which Fits Your Cash Flow Profile?

A five-month horizon for a property down-payment favours the six-month T-bill. Buy at 3.42%, hold to maturity, and the exact cash amount is known today. An SSB would deliver only 2.70% in the first year and could underperform the T-bill by $36 per $10,000 invested if cashed out at the five-month mark, after adjusting for the partial-year interest.

A buffer fund requiring instant availability without any chance of capital impairment weighs toward the SSB. Redemption can be timed within a month, and the steadily rising coupon rewards holding through years two to five. An investor who bought SBFeb25 in 2025 saw their annualised rate move from 2.66% in year one to 3.07% by year five—without a single transaction.

A 12-month savings goal for a wedding can be met by either a one-year T-bill or a combination of a six-month bill plus an SSB. The one-year bill at 3.28% locks in a known return. The six-month bill plus an SSB provides a weighted average that depends on the second auction’s rate, introducing reinvestment uncertainty. The cleaner solution is the one-year T-bill.

2026 Issuance Calendar and Application Mechanics

T-bill auctions occur bi-weekly for six-month tenors and monthly for one-year tenors. The MAS calendar shows three six-month auctions in March 2026 alone, with application deadlines two business days before each auction. Non-competitive bids must be submitted by 9pm on the deadline day through internet banking. Allotment results are published after 12 noon on the auction date. An investor placing a $20,000 non-competitive bid is guaranteed full allotment up to the 40% cap; if the cap is exceeded, allotment is prorated.

SSB applications open at 6pm on the first business day of each month and close at 9pm on the 4th last business day. Results are announced on the 3rd last business day, and the bond is issued on the first business day of the following month. The SBMay26 application window will open on 1 May 2026. Allocation limits have occasionally resulted in full subscription; the $200,000 individual ceiling remains in effect. No competitive bid exists—every applicant receives the same step-up schedule.

FAQ

Can I sell T-bills before maturity, and what happens? Yes, on SGX or via bond dealers. If the prevailing yield for the remaining tenor is higher than your purchase yield, the bond price falls below par. For example, a six-month bill purchased at 3.42% and sold one month later when the five-month yield rises to 3.70% would trade at around $99.85 per $100 face value, incurring a capital loss of $15 per $10,000 invested plus brokerage. Conversely, if yields fall, a capital gain is possible.

What is the maximum I can hold in SSBs? The Monetary Authority of Singapore caps total holdings at $200,000 per individual. This includes bonds bought from earlier issues that are still outstanding. If you already hold $150,000, the maximum you can apply for in a new issue is $50,000. Allocation is not guaranteed if the issue is oversubscribed; historical cut-off ratios from 2025 ranged between $10,000 and $50,000 per person during high-demand months.

How quickly can I get my money back from an SSB? Submit a redemption request by 9pm on the 4th last business day of the month. Proceeds are credited to your bank account by the 2nd business day of the following month. In calendar terms, a request made on 25 March 2026 (assuming the cut-off falls that day) would see cash arrive on or before 2 April 2026—typically five business days. You receive the full principal plus accrued interest, with no exit fee.

Are T-bill yields guaranteed if I hold to maturity? Yes. The effective yield is determined by the auction cut-off price. Once the bill is issued, the return (face value minus price paid) is fixed. There is no interest rate adjustment. The Singapore government’s AAA credit rating underpins the repayment promise.

参考资料 / References

1. Monetary Authority of Singapore, SGS Bond Market Report, February 2026
2. Singapore Savings Bond Issuance Page, MAS, March 2026
3. Singapore Exchange, SGS Bond Auction Calendar and Secondary Market Data, 2026
4. The Central Depository (Pte) Limited, CDP Account Statements and Holdings, 2026
5. Ministry of Finance, Singapore Government Securities Information Memorandum, 2026

This article does not constitute financial advice.