If you blinked in the last week of September, you missed the biggest move in Singapore T-bill yields all year. The 6-month Treasury bill auction BS26119F on 24 September 2026 cleared at a cut-off yield of 1.92% p.a. — a jump of 0.22 percentage points from the previous auction's 1.70%, and the highest cut-off of 2026. At the same time, the next Singapore Savings Bond, SBNOV26, is now projected at a 10-year average return of 2.44% p.a. with 86% confidence. For anyone parking cash, CPF Ordinary Account money, or SRS funds, the question has flipped from "where do I find yield?" to "how do I lock this in before it fades?" This guide breaks down the September surge, what it means for T-bill yields in Singapore, and how to position for October.
What Just Happened: The September T-bill Surge
For most of 2026, 6-month T-bill cut-off yields crawled along a narrow band, drifting from 1.36% in February to the 1.50%–1.70% range through the middle of the year. Then September broke the pattern.
| Auction Date | Issue | Cut-Off Yield | Bid-to-Cover |
|---|---|---|---|
| 27 Aug 2026 | BS26117A | 1.60% | — |
| 10 Sep 2026 | BS26118E | 1.70% | 1.97 |
| 24 Sep 2026 | BS26119F | 1.92% | 1.88 |
The benchmark move that drove it
The cut-off does not appear out of thin air. The 6-month SGS benchmark yield sat flat at 1.68% from 21 to 23 September, then jumped to 1.88% on 24 and 25 September. That benchmark — the bid rate quoted by SGS primary dealers — is the market's live read on where short-term Singapore government borrowing costs sit. When it moved, the auction cleared well above it: the cut-off landed 0.24 percentage points above the previous day's benchmark, the widest spread of any auction in the past four years.
Demand cooled as yields rose
Here is the nuance that matters. Despite the higher rate, demand actually fell. Total applications dropped to S$15.8 billion from S$16.6 billion at the previous auction, pushing the bid-to-cover ratio down to 1.88 from 1.97. Higher yields and lower demand moving together tells you this was driven by the supply-and-rate backdrop, not by a stampede of retail investors chasing returns. That is a healthier signal than a demand spike would be — as we noted back in our analysis of why T-bill demand was cooling.
What 1.92% Means for Your Money
A 1.92% cut-off is more than a headline. Because T-bills are sold at a discount and pay no coupon, the yield translates directly into the price you pay and the return you earn at maturity.
The mechanics, quickly
The cut-off price for BS26119F was 99.043 per S$100 of face value. Buy S$10,000 of face value, pay roughly S$9,904.30, and receive the full S$10,000 when the bill matures on 30 March 2027. The difference — about S$95.70 — is your return for roughly six months, an annualised 1.92%. Non-competitive bidders were fully allotted (S$1.45 billion was set aside for them), while competitive bidders at exactly 1.92% received about 49.47% of the amount they applied for.
Why the median and average tell a fuller story
The median yield was 1.79% and the average yield 1.69%, both well below the 1.92% cut-off. That gap is a tell: a cluster of aggressive low bids and a smaller number of high bids pulled the cut-off up. If you bid competitively, this is the number to understand — you only get filled at or below your bid, so bidding exactly at the benchmark can leave you shut out when the market spikes.
Cash, CPF OA, and SRS all qualify
T-bills remain one of the few instruments you can buy with cash, CPF Ordinary Account funds, and SRS. For CPF OA money, weigh 1.92% against the CPF OA floor rate and remember that CPF application deadlines can fall a business day earlier than the 9pm cash cut-off. For SRS, the higher yield makes T-bills a genuinely attractive short-term parking spot while you decide on longer-horizon allocations.
SBNOV26 at 2.44%: The Better Long Game
While the T-bill made the headlines, the Savings Bond quietly improved. SBNOV26 — which opens on 1 October 2026 — is now projected at a 10-year average return of 2.44% p.a., up marginally from the 2.43% estimate a week earlier and now carrying 86% confidence, with two of three projection milestones passed. Rates step up from 1.66% in Year 1 to 3.08% in Year 10, and a S$10,000 investment is projected to earn about S$2,440 in total interest over the decade.
| Metric | SBOCT26 (Closed) | SBNOV26 (Projected) |
|---|---|---|
| 10-Year Avg Return | 2.32% | 2.44% |
| Year 1 Rate | 1.65% | 1.66% |
| Year 10 Rate | 3.01% | 3.08% |
| Total Interest on S$10k | ~S$2,321 | ~S$2,440 |
Still a projection, not a promise
The 2.44% figure is a projection based on 1, 2, 5 and 10-year SGS benchmark yields. The actual rate is only confirmed on 1 October 2026, when applications open. With confidence now above 85%, the estimate is a mature one, but a sharp move in SGS yields in the final September business days could still nudge it. Do not treat the projection as guaranteed.
Where it fits against the long-run picture
At 2.44%, SBNOV26 stacks up favourably against the year's earlier issues. For savers building a ladder, the higher projected average — paired with the fact that SSBs are capital-guaranteed, tax-exempt, and redeemable in any month without penalty — makes October an attractive entry point. For a deeper comparison across instruments, see our T-bill vs SSB vs SGS Bonds ladder guide.
Your October Playbook
The September surge creates two very different opportunities depending on your time horizon.
Short-term money: chase the T-bill window
The next 6-month auction, BS26120W, is announced on 1 October, auctions on 8 October, and issues on 13 October 2026. If short-term yields stay elevated near the 1.88% benchmark, that auction is the one to watch. Non-competitive bids have been fully allotted in every recent auction, so if you simply want exposure without bid risk, that route remains the safest default.
Longer-term money: prepare for SBNOV26
SBNOV26 opens 1 October, closes 27 October, with allotment on 28 October and issue on 2 November. If you hold older SSBs paying lower rates, remember the swap mechanics: existing bonds never auto-upgrade, so capturing a better issue means actively redeeming and reapplying. Model the improvement against your holding period before doing the paperwork.
The flexibility card still wins
Whatever you choose, the structural advantage of SSBs — monthly redemption with accrued interest and no penalty, plus a S$200,000 individual cap across all issues — means you are never truly locked out. You can apply now and still pivot, or ladder across issues to smooth out rate timing. In a month where yields moved 0.22 points in a fortnight, that optionality is worth more than any single headline rate.
Frequently Asked Questions
What was the September 2026 6-month T-bill cut-off yield?
The 6-month T-bill BS26119F, auctioned on 24 September 2026, cleared at a cut-off yield of 1.92% p.a. — up from 1.70% at the previous auction and the highest cut-off of the year.
Why did T-bill yields jump in September?
The 6-month SGS benchmark yield rose from 1.68% to 1.88% in late September. The auction then cleared 0.24 points above the previous day's benchmark, the widest spread in four years. Demand actually fell (bid-to-cover dropped to 1.88), so the move was rate-driven rather than demand-driven.
Is SBNOV26 really paying 2.44%?
Not confirmed. As of 25 September the 2.44% 10-year average was a projection carrying 86% confidence. The actual rate is announced on 1 October 2026 and could differ.
Can I use CPF or SRS for these investments?
Yes. T-bills can be bought with cash, CPF Ordinary Account funds, and SRS. Savings Bonds can be funded with cash and SRS. CPF application deadlines for T-bills may fall earlier than the cash cut-off, so confirm with your bank.
What is the next T-bill auction after 24 September?
BS26120W is announced on 1 October, auctioned on 8 October, and issued on 13 October 2026, maturing 13 April 2027. The subsequent auction, BS26121N, follows on 22 October.
Sources: iLoveSSB (BS26119F T-bill auction; SBNOV26 projection; SSB and SGS overview), and MAS (Investing in Savings Bonds).
Disclaimer: This article is for general information only and does not constitute financial advice. Interest rates, projections, and auction outcomes can change. Always do your own research or consult a licensed financial adviser before investing. Projections are not guarantees of future returns.
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