T-Bills Pay 1.59% With No Conditions. Your Bank’s “4.10%” Has Five

A side-by-side look at what UOB One, OCBC 360, and DBS Multiplier actually pay once you account for salary credits, card spend, and product purchases, against a T-bill rate that needs none of it.

Singapore’s latest T-bill auction just cleared at 1.59%. No salary credit. No card spend. No insurance purchase. Just a number, and it’s yours.

Compare that to your bank’s savings account. The headline says up to 4.10%. What you’ll actually earn depends on how many boxes you tick.

I get asked constantly why I bother checking a REIT’s gearing and occupancy instead of just trusting the yield on the cover page. The same discipline applies here, just aimed at your own bank statement instead of a listed company’s. A headline savings rate is a REIT’s headline yield wearing a different outfit, the real number lives in the conditions underneath it, not the number in bold.

The Clean Number First

The 6-month Singapore T-bill (BS26115N) cleared at a cut-off yield of 1.59% in the 30 July auction, its third consecutive rise, up from 1.55% on 16 July and 1.50% on 2 July. Demand rose alongside it, total applications reached S$18.1 billion, and the bid-to-cover ratio climbed to 2.11 times as issuance fell slightly to S$8.6 billion. If you’d bid below the cut-off, you got your full allocation. Bid exactly at 1.59%, and allocation ran close to full as well, this wasn’t a razor-thin cut-off auction.

Here’s what makes 1.59% the honest number in this piece: it’s what MAS actually paid, full stop. No behavioural conditions, no minimum spend, no product cross-sell. You bid, you get allotted, you’re paid the rate. That’s the baseline every other number in this piece needs to be measured against.

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UOB One: The Closest To Honest

UOB’s One Account currently advertises a maximum effective interest rate of 1.9% p.a. on balances up to S$150,000, revised down from 2.5% as of 1 December 2025, in what the bank described as an adjustment to align with long-term interest rate expectations. To hit that ceiling, you need S$500 in monthly spend on an eligible UOB card, plus either a salary credit of at least S$1,600 or three GIRO transactions a month.

Of the three accounts in this piece, this is the smallest gap between headline and reality. No insurance purchase, no investment product, just spending and salary behaviour most working adults already do anyway. The GIRO-only path, without a salary credit, caps out lower, around 1.4% on a smaller balance tier, worth knowing if you’re not routing your paycheck through UOB.

Iggy’s Forensic Zone: not applicable. This isn’t a stock, so there’s no zone verdict here, just a straightforward read: UOB One’s advertised rate and its realistic rate sit close enough together that the headline isn’t doing much misleading. That’s not true of the next two.

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OCBC 360: The Widest Gap

OCBC 360’s current promotional headline reaches as high as 4.70% p.a. on the first S$100,000, a limited-time bump running from August through December 2026 on top of an already-revised 4.45% ceiling. To actually reach that number, you need all five categories at once: salary credit, growing your average balance, card spend, and, critically, purchasing an eligible OCBC insurance product and an eligible OCBC investment product.

Strip out the insurance and investment purchases, the two categories that require you to actually buy a financial product from the bank, and the realistic maximum most account holders will earn is 1.95% p.a. on salary, save, and spend alone. That’s the number worth anchoring on if you’re not planning to buy insurance or unit trusts specifically to unlock a savings account tier. The gap between 4.70% and 1.95% isn’t a rounding difference, it’s more than double, and it exists specifically because two of the five conditions require handing the bank additional business, not just banking behaviour.

What “Up To” Actually Means

Every time you see a savings account advertised as “up to” a headline rate, treat those two words as a flashing forensic flag, not marketing filler. “Up to” means the number in bold is the ceiling, achieved only by the smallest, most demanding slice of account holders, usually the ones buying additional products from the same bank. The realistic rate for someone who just banks normally, salary credit and everyday spend, is almost always closer to the base of the tier structure than the top. Read every “up to” the way you’d read a REIT’s best-case distribution guidance: informative about the ceiling, not predictive of what you’ll actually receive.

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DBS Multiplier: The Volume Trap

DBS Multiplier’s headline sits at up to 4.10% p.a. on the first S$100,000. Unlike OCBC, it doesn’t require buying a specific product, but it demands something arguably harder for most households to sustain: a salary credit plus three or more bonus categories, card spend, home loan, insurance, or investment, and at least S$30,000 a month in eligible transactions running through the account to land in the top tier of the rate grid.

Thirty thousand dollars of monthly eligible transactions is a genuinely high bar, well above what most individual retail savers move through a single account in a normal month. Fewer categories or a thinner month lands you in a lower cell of the same grid, and missing the income credit or category requirement entirely in any given month doesn’t just lower your rate, it drops your entire balance to the 0.05% base rate for that month. This is the account where the penalty for an inconsistent month is steepest, not a lower tier, the floor.

The trade-off section that follows applies the same forensic discipline to liquidity and capital risk, the point where a clean 1.59% T-bill starts competing directly with your “up to” savings rates for where idle cash should actually sit.

The Trade-Off Worth Being Honest About

None of this makes the T-bill a free lunch, and a forensic read has to acknowledge its own cost, not just everyone else’s. A 6-month T-bill locks your cash for six months. Sell before maturity and you’re exposed to secondary market pricing, which can move against you, unlike a savings account, where every dollar stays fully liquid every single day.

Worth knowing where the current Singapore Savings Bond sits in this picture too, since it occupies a different spot on the liquidity spectrum entirely. The August 2026 SSB tranche pays 1.46% in its first year, stepping up gradually to a 2.06% average if held the full ten years, below this T-bill’s 1.59% for anyone parking cash short-term. But an SSB can be redeemed in any month before maturity with your full principal back and no capital loss, just a small transaction fee, genuinely more flexible than a T-bill despite the longer notional term. For cash you might need on short notice, that redemption flexibility is worth more than a marginal yield difference. For cash you’re confident sitting untouched for six months, the T-bill’s higher near-term rate wins outright.

This is the actual decision framework, not “T-bill beats everything.” A T-bill suits cash you can commit for six months and don’t expect to touch. A savings account, even at a lower realistic rate, suits cash you need genuinely liquid day to day. An SSB suits cash you want growing steadily with an emergency exit built in. None of the three is universally correct, the forensic point is knowing which honest number applies to which bucket of your own cash, rather than anchoring on whichever headline looked biggest in an ad.

Here’s what the “no conditions” claim actually rests on mechanically. When you apply for a T-bill, you can bid competitively, naming the yield you’re willing to accept, or non-competitively, agreeing to accept whatever the cut-off yield turns out to be. In this auction, anyone who bid below 1.59% received their full requested allocation, and non-competitive bids, capped at a portion of the total issuance, were fully allotted as well since demand for that category stayed within the limit. There’s no relationship-based tiering, no better rate for larger deposits, no bonus category for existing customers. The rate you’re quoted is the rate every successful bidder in that auction receives, whether you’re bidding S$1,000 or S$1 million through your CPF Ordinary Account or in cash.

That mechanical simplicity is precisely what a savings account’s tiered bonus structure lacks. A bank can revise its qualifying criteria, adjust which transaction types count as “salary,” or cut a rate with an email notice, and has done exactly that across all three accounts in this piece within the past year. A T-bill’s rate, once set at auction, is fixed for the life of that specific issue, nobody can retroactively change what BS26115N pays you between now and its maturity.

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The Comparison That Actually Matters

Put plainly, side by side: the T-bill pays 1.59%, no conditions. UOB One realistically pays close to its 1.9% ceiling with ordinary banking behaviour. OCBC 360 pays 1.95% without buying anything extra, or up to 4.70% if you’re willing to purchase insurance and investment products through the bank. DBS Multiplier pays up to 4.10%, but only with a genuinely high monthly transaction volume that many retail savers won’t consistently hit, and drops hard on any month you don’t.

Reading A Rate Grid Like A Balance Sheet

A tiered savings account rate structure and a REIT’s distribution guidance are doing the same job: presenting a best-case number prominently, with the conditions that actually determine your real return sitting in smaller print underneath. The discipline is identical in both cases. Find the floor, not the ceiling. Ask what behaviour, purchase, or transaction volume the top number actually requires. And compare that realistic floor against the cleanest available baseline, for cash, that’s now a T-bill paying 1.59% for doing nothing but showing up to the auction.

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What This Means For Where You Actually Park Cash

None of this makes UOB One, OCBC 360, or DBS Multiplier bad accounts, they’re not, and the bonus tiers exist for account holders who genuinely qualify for them through normal banking behaviour. What it means is that the headline number on any of these accounts is not the number you should assume you’re earning, the same way a REIT’s best-case yield isn’t the number you should assume you’re collecting.

For a portion of your savings that’s genuinely idle, sitting there while you decide what to do with it, a T-bill’s clean 1.59% is now a real, honest baseline to measure every other option against, including your existing savings account. If your bank account can genuinely clear that number through behaviour you’re already doing anyway, salary credit you’d have set up regardless, spending you’d have done regardless, it’s the more liquid, more convenient choice. If clearing the headline rate means buying a product you weren’t otherwise planning to buy, or hitting a transaction volume you can’t sustain every month, the honest comparison isn’t a bank’s “up to” figure. It’s the realistic floor, measured against a T-bill that doesn’t need an asterisk.

The next 6-month T-bill auction will set a fresh cut-off yield, and it may land higher, lower, or flat against 1.59%. Whatever it lands at, it’ll still be the one number in this entire comparison that arrives with no conditions attached, which is exactly why it’s worth checking every time, not just once.

YOUR FORENSIC VERDICT, ONE PAGE.

The full audit is above. This is the Iggy Forensic Audit distilled to one A4 page — every number that matters, every flag that triggered, one clear verdict. Save it, print it, pull it out when this stock crosses your radar again, or when you need to refer to these data points for your retirement planning.

Iggy’s Forensic Disclaimer

This content is produced for educational and informational purposes only. I am not a financial advisor — I am a retail investor who applies forensic analysis to my own portfolio and shares that process publicly. Nothing here constitutes a recommendation to buy, sell, or hold any security, and no specific target prices or personalised financial advice are offered. Stocks assessed under Iggy’s Forensic Yield Standard are benchmarked against a 4.7% minimum yield hurdle; stocks flagged as Growth Watch fall below this threshold but demonstrate clean balance sheet metrics and an identifiable growth catalyst — these carry a materially different risk profile and are not suitable as yield replacements for income-dependent investors. All data is sourced from public filings and verified sources; where data is unverified it is explicitly flagged. All investments carry risk, including the potential loss of principal, and past performance is not indicative of future results. If you are making investment decisions involving CPF, SRS, or personal capital, please conduct your own due diligence or consult a MAS-licensed financial adviser before committing funds.