T-Bills vs Liquid Funds: Where Should Short-Term Money Sit?

Short-term money in India has two serious homes beyond a savings account: T-bills, which are sovereign, free to buy and fixed-date, and liquid funds, which are near-instant, professionally run and carry a small fee. The internet enjoys declaring a winner. They solve different versions of “short-term,” and most people are better off using both.

The head-to-head

DimensionT-billLiquid fund
CreditGovernment of IndiaPortfolio of bank/corporate paper ≤91 days
CostZero (via RBI Retail Direct)Expense ratio ~0.15–0.30%
AccessAt maturity, or a thin secondary marketT+1 redemption, instant up to ₹50k/day for many funds
Return shapeLocked at purchase, so a known rupee outcomeFloats daily with money-market rates
TaxationGain at slab (STCG)Gains at slab (post-2023 rules, any holding period)
Minimum₹10,000₹100–500
AdminAuction bids, maturity datesNone

The taxation row is the one that changed. Since the 2023 debt-fund rules, both are taxed at slab, so the tie-breaker that used to favour funds is gone. That quietly strengthened the T-bill’s case.

Yields right now (mid-2026)

With the repo held at 5.25% at the August 2026 policy, the auction of 19 August cut off at 5.26% on 91-day paper, 5.57% on 182-day and 5.74% on 364-day. Liquid funds’ forward-looking yields sit in a similar 5.3–5.7% zone before their expense ratio. Their headline one-year trailing returns of about 6.3% were earned in the higher-rate past, so compare forward yields rather than rear-view returns, and run auction prices through the T-bill calculator.

One structural point worth holding onto. In a falling-rate cycle, a T-bill locks today’s rate for 91 to 364 days while liquid fund yields drift down week by week. In a rising cycle the fund reprices upward faster. Neither is better in the abstract. They’re opposite bets on the same curve, which is why holding both is a coherent position rather than a fence-sit.

The real differentiator: what “short-term” means to you

If the answer is “I might need it tomorrow,” use a liquid fund or a sweep FD. That’s exactly where the T-bill is weak, because exiting before maturity depends on a thin retail secondary market.

If it’s “I need it on or around a known date,” advance tax in September, school fees in January, a car in six months, then a T-bill maturing just before the date gives you known rupees, sovereign credit, no cost and no NAV to watch.

If it’s your emergency fund, use both, in layers.

The graded emergency-fund architecture

Take six months of expenses.

Layer 1, two to four weeks of spending. Savings account or sweep FD. Instant, boring, correct.

Layer 2, one to two months. A liquid fund, whose T+1 access covers the gap while Layer 3 wakes up.

Layer 3, the bulk. A rolling 91-day T-bill ladder, split into four to six slices bought at successive weekly auctions. After the ramp-up something matures every couple of weeks, indefinitely, at sovereign credit with no expense ratio. The ladder builder designs it in a minute.

In aggregate that gives you fund-like access with sovereign credit on the majority of the money. Most T-bill-versus-liquid-fund arguments never arrive here, because the setup refuses to pick a side.

FAQ

Are liquid funds risky? The 2020 credit-fund scare mostly bypassed true liquid funds, and SEBI’s rules have tightened since. The risk is low. “Low” and “sovereign” are still different words, and Franklin’s 2020 episode in adjacent categories is why that distinction earns a few basis points.

What about overnight funds and liquid ETFs? Safer and shorter than liquid funds, yielding near the overnight rate, currently in the 5.0–5.5% zone. They work as Layer 2 alternatives, and usually aren’t worth the yield sacrifice for Layer 3 money.

Arbitrage funds? They’re a tax play for high slabs, using equity taxation, with equity-market plumbing risk attached. That’s a different conversation from cash management, and not where an emergency fund belongs.

Can I automate the T-bill ladder? Yes, since August 2025. RBI Retail Direct has an auto-bid facility that places bids in the primary auction for you on a rule you set: tenor, amount and frequency, with a ₹10,000 minimum in multiples of that. It covers reinvestment at maturity too, so a ladder can roll without you opening the app. You can still bid manually, which takes about two minutes an auction. Walkthrough here.

P
Prakhar Choudhary

Ex-BlackRock SFI, Incoming MScAC @ UToronto. Built BondLab because Indian retail investors deserve the same quality of fixed-income analytics that institutions use, independent of anyone selling bonds. More about BondLab →

Educational content, not investment advice. Tax rules current for FY 2026-27 to the best of our knowledge, but verify with a professional before acting. See the full disclaimer.