How to Ladder T-bills and SSBs for Steady Cash Flow

A bond ladder is a portfolio of fixed-income securities with staggered maturity dates, designed to provide regular liquidity and reduce reinvestment risk. In Singapore, cash-rich investors are building ladders using Singapore Government T‑bills and Singapore Savings Bonds (SSBs) — instruments that in early 2026 offer yields of 3.0%–3.5%, zero default risk, and full capital backing by the government. A 2026 dual‑ladder with six rungs can deliver cash inflows every two months while preserving the flexibility to redeploy principal into future, potentially higher‑yielding issuances.

The T‑bill Conveyor in 2026

Six‑month and one‑year T‑bills remain the shortest‑duration rungs. As of 21 January 2026, the 6‑month T‑bill (BS25100Z) cut‑off yield was 3.12%, and the 1‑year bill yielded 3.05%. Both are issued at a discount, so a S$10,000 face‑value purchase costs roughly S$9,844 for the 6‑month tenor. Investors create a simple ladder by buying batches every two months; after the initial six‑month ramp‑up, a bill matures every 60 days. Proceeds roll into a new 6‑month bill, capturing any rate moves without locking up capital for more than half a year. The annualised effective return of a rolling 6‑month ladder, assuming constant 3.12% yields and instant reinvestment, is 3.18% — a 6‑basis‑point pickup from static holding because you compound the discounted purchase price faster.

The SSB Laddering Edge

SSBs are unique: you can hold for up to 10 years yet exit anytime with accrued interest, receiving the higher of face value or market‑adjusted book value. The February 2026 SSB tranche pays a first‑year rate of 3.22%, stepping up to a 10‑year average return of 3.42%. A 10‑rung SSB ladder — purchasing one tranche each month or quarter — builds a ladder of step‑up coupons that get more generous over time. The critical advantage is the flat exit cost: you never lose principal when redeeming early, so a 1‑year‑old SSB can be replaced without mark‑to‑market pain if rates rise. For example, an SSB bought in January 2026 that pays 3.20% can be redeemed in July 2026, yielding an annualised 3.15% after the accrued‑interest calculation, with the full principal returned to you in the following month.

Constructing a Dual Ladder

Mixing T‑bills and SSBs creates a blended ladder that balances near‑term liquidity with long‑duration income. A 2026 prototype: allocate 40% to a 6‑month T‑bill conveyor and 60% to a 12‑rung quarterly SSB ladder. The T‑bill portion spits out cash every two months; the SSB portion generates ever‑rising coupons plus full liquidity. With T‑bills at 3.12% and SSBs averaging 3.36% (the blended first‑year rate of all 2026 issues to date), the portfolio yield settles around 3.26%. Every rung contributes to a predictable cash‑flow map — S$500 monthly coupons on a S$200,000 ladder — without the uncertainty of maturity‑driven reinvestment shock.

Maturity Matching for Recurring Expenses

Align rung sizes with known cash needs. A retiree expecting S$2,000 monthly expenses can build a 2‑month T‑bill ladder with S$12,000 rungs. Every two months, S$12,000 matures, covering expenses until the next maturity. The idle cash between maturities sits in a high‑yield cash account (like the CPF Ordinary Account‑sweep‑adjacent instruments offering 2.5%–3.0% in 2026). The Treasury‑bill face values grow slightly each cycle if you reinvest the interest surplus. For lumpy obligations — a housing down‑payment in year 5 — an SSB purchased in 2026 with a 5‑year step‑up coupon yields 3.10% in year 5 (based on the February 2026 tranche’s step‑up schedule) and returns S$100,000 precisely when the mortgage is due.

Tax and Liquidity Mechanics

Both T‑bills and SSBs are tax‑exempt for individuals in Singapore — no interest income tax, no capital gains considerations. T‑bills settle T+1 and can be sold before maturity in the secondary market, though bid‑ask spreads can nibble 0.05%–0.10%. SSBs redeem directly with MAS at face value; the cash appears in your bank account by the next business day. This makes the ladder a near‑cash vehicle that fits emergency reserves. A 2026 ladder with half in T‑bills maturing every 60 days and half in SSBs redeemable on demand provides same‑week access to 100% of capital should rates shift or personal circumstances change.

Historical Context: From Near‑Zero to 3.5%

Historical comparison section — during the low‑yield era of 2020–2021, 6‑month T‑bill cut‑off yields fell to 0.11%, and SSB first‑year rates bottomed at 0.57% in late 2021. The 2026 levels represent a structural shift driven by short‑term MAS bill issuance and a tighter global rate environment. Even if the Federal Reserve cuts rates moderately in late 2025, Singapore’s managed exchange‑rate framework keeps SGD short rates anchored to a basket of currencies, so 3%‑handle yields are likely durable through 2026. Laddering across this backdrop locks in yield without speculation.

Scaling and Automation

Retail investors can scale the ladder from S$25,000 to S$1 million using the same mechanics: DBS, OCBC, and UOB internet‑banking portals allow T‑bill and SSB applications in under five minutes. For a six‑rung 6‑month ladder of S$60,000 total, schedule four T‑bill purchases in alternating auction cycles (every two months) and two SSB applications per quarter. Set calendar reminders for application windows — T‑bill auctions open three days before close, SSB applications open on the first business day of the month — and reinvest maturing proceeds immediately. This automated rhythm transforms idle cash into a self‑funding distribution machine.

FAQ

1. Can I lose principal if I redeem SSBs early?
No. SSBs are redeemable at full face value plus accrued interest at any time. If you bought the February 2026 issue (first‑year rate 3.22%) and redeem after nine months, you receive your principal back plus nine months of interest, calculated daily — no penalty or market‑price haircut.

2. How does a T‑bill ladder compare with a 12‑month fixed deposit in 2026?
A 6‑month T‑bill ladder yields 3.18% effectively, whereas the best 12‑month SGD fixed deposit from local banks pays 2.85% as of March 2026. The T‑bill ladder also returns capital every two months, offering greater flexibility. However, if rates drop sharply, the FD locks in the rate for a full year, while the T‑bill ladder benefits from reinvesting at lower rates only after each rung matures.

3. What is the minimum investment to build a useful ladder?
S$1,000 per rung. For a 6‑month T‑bill ladder with three rungs (maturing every two months), S$3,000 total. For an SSB ladder, S$500 per monthly application. A dual ladder of S$6,000 — three T‑bill rungs of S$1,000 each and six SSB rungs — generates S$182 in annual interest at current yields and provides liquidity every month. Larger sums simply multiply the cash‑flow schedule.

References

• Monetary Authority of Singapore, Singapore Savings Bonds – Investor Information, 2026.
• Singapore Government Securities, T‑bill Auction Results, January 2026.
• DBS Bank, SGD Fixed Deposit Rates, March 2026.
• SingStat, Consumer Price Index and Household Balance Sheets, Q4 2025.
• Bloomberg, Global Sovereign Yield Monitor, February 2026.

This article does not constitute financial advice.