Overnight funds vs liquid funds — where to park idle cash
Overnight funds earn slightly less than liquid funds but carry near-zero risk. Both beat the typical 3–3.5% savings account rate. Here's how to choose.
You’ve got money sitting in your savings account. Maybe it’s your emergency fund. Maybe it’s next month’s rent buffer. Maybe you sold some stocks and haven’t decided what to do next. Whatever it is, your savings account is paying you 3% to 3.5% per year and you know, somewhere in the back of your mind, that you could be doing better.
Two options come up almost every time this conversation happens: overnight funds and liquid funds. They sound similar. They’re both “safe.” But they work differently, and choosing the wrong one for the wrong situation actually costs you money.
Here’s what matters.
What These Things Actually Are
An overnight fund invests your money in instruments that mature the very next day. Every single day, the fund manager rolls over the entire portfolio. The name is literal — the money is lent out overnight and comes back by morning.
A liquid fund invests in slightly longer instruments — treasury bills, commercial paper, certificates of deposit — that can mature anywhere from overnight up to 91 days. Still very short-term, but not overnight short-term.
That one difference — the maturity period — is the thing that actually changes how you should use them.
The Numbers First
Let’s make this concrete. Say you’re earning ₹70,000 per month in Bengaluru, you have ₹2 lakh sitting as an emergency buffer in your SBI savings account at 3.5% annual interest. That’s earning you roughly ₹5,833 over six months.
Move that ₹2 lakh into a liquid fund averaging 7% annually — which is close to what HDFC Liquid Fund and SBI Liquid Fund have delivered recently — and you’re looking at around ₹7,000 in six months. That’s an extra ₹1,167 for doing almost nothing.
Move it into an overnight fund averaging 6.5%, and you get roughly ₹6,500 — still better than a savings account, but slightly less than a liquid fund.
| Where your ₹2 lakh sits | Approx. return over 6 months |
|---|---|
| SBI Savings Account (3.5%) | ₹3,500 |
| Overnight Fund (~6.5%) | ₹6,500 |
| Liquid Fund (~7%) | ₹7,000 |
The gap between overnight and liquid funds looks small here. But across larger sums — say ₹10 lakh in a business account or a house down payment you’ve been accumulating — that half-percent difference starts to matter.
The Actual Difference: Risk and How Fast You Can Exit
Overnight funds are almost zero risk. Because every instrument matures the next day, there’s virtually no chance the fund’s value drops. If a company defaults on its debt, an overnight fund barely flinches because it was only ever exposed for one night.
Liquid funds carry a tiny bit more risk because they hold paper that could, in theory, have credit events during that 91-day window. This is rare, but it has happened — the Franklin Templeton episode in 2020 shook the category, though that was technically an ultra-short duration fund. SEBI has since tightened the rules for liquid funds, including a mandatory exit load for the first 7 days (a small penalty if you withdraw within a week). The exit load on day one is 0.0070%, tapering to 0.0045% by day six, and zero from day seven onward.
Overnight funds have no exit load at all.
So if you need money out in two days, overnight funds are cleaner. If your money can sit for at least a week, liquid funds are slightly better on returns.
So What Should You Actually Do
If the money is your emergency fund — the kind you might need at 11pm on a Tuesday — use an overnight fund. Platforms like Kuvera and Groww let you invest in overnight funds with same-day or next-day liquidity. No exit load, no drama.
If the money has a timeline of two weeks or more — you’re saving up for a laptop, a holiday, or waiting to deploy into equity — use a liquid fund. The slightly higher return compounds meaningfully, and you won’t be triggering any exit load because you’re not touching it in the first week.
One practical setup that works well: keep one to two months’ expenses (for most Bengaluru or Mumbai salaried folks that’s ₹40,000 to ₹80,000) in an overnight fund on Kuvera, and anything beyond that earmarked for a specific goal in a liquid fund on Groww or directly through an AMC like HDFC Mutual Fund.
Tax-wise, both are treated identically. Returns are added to your income and taxed at your slab rate — so if you’re in the 30% bracket, you’re paying 30% on the gains. No special treatment either way.
Frequently Asked Questions
Are overnight funds safer than liquid funds?
Yes, marginally. Overnight funds hold instruments that mature in one day, so there’s almost no credit risk. Liquid funds hold instruments up to 91 days, which introduces a small amount of credit and interest rate risk — though SEBI regulations keep this tightly managed.
Can I withdraw from a liquid fund anytime?
You can, but if you withdraw within the first seven days, a small exit load applies — starting at 0.0070% on day one and going to zero from day seven. After day seven, there are no charges and redemptions typically hit your account within one business day.
Is there a minimum investment amount?
On most platforms like Groww, Kuvera, or Zerodha Coin, you can start with as little as ₹500. There’s no practical minimum for most liquid or overnight funds when investing through these apps.
How is the return on these funds taxed?
Both overnight and liquid fund gains are taxed as short-term capital gains if held under three years, meaning they’re added to your income and taxed at your applicable slab rate — 5%, 20%, or 30%. There’s no indexation benefit or flat rate available for sub-three-year holdings.
Should I use these instead of a fixed deposit?
For money you might need within three to six months, yes — liquid and overnight funds offer comparable or better returns with far more flexibility. An FD locks your money in and charges a penalty for early withdrawal. For a one-year or longer horizon where you’re certain you won’t touch the money, an FD can make sense, especially at current rates of 6.5% to 7% from banks like HDFC or SBI.