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Ultra-Short & Money Market Funds: Park Cash for Months

Rohan has ₹4 lakh sitting for his sister's wedding in eight months. A savings account feels lazy, an FD feels rigid. There's a middle lane most people miss.

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Ananya Rao · Founding Editor
18 Sept 2026 · 7 min read

Rohan has a problem most of us would happily trade for: too much cash sitting still. His sister's wedding is eight months away, and ₹4 lakh earmarked for it is currently sunbathing in his savings account earning next to nothing.

A fixed deposit? He's worried he'll need to break it early and eat a penalty. Equity funds? Absolutely not — eight months is far too short to gamble the wedding budget on the market's mood. So the money just sits there, losing a slow race against rising prices. Rohan is stuck in the gap that nobody explains: where do you put money you'll need in a few months, but not tomorrow?

Meet the 'short-horizon' shelf of debt funds

Most people know liquid funds and overnight funds for very short parking. But there's a whole shelf of debt funds designed for slightly longer stays, and they're sorted by one simple idea: duration — roughly, how long the bonds they hold take to mature.

Think of it like choosing a queue at the airport. A shorter queue (shorter duration) moves predictably and rarely surprises you. A longer queue might get you a better spot, but it can also lurch around more. For debt funds, 'lurching around' means price sensitivity to interest rates.

  • Overnight funds: hold 1-day paper. Safest, lowest return. For money you might need this week.
  • Liquid funds: instruments up to 91 days. Good for a few weeks up to ~3 months.
  • Ultra short duration funds: duration ~3-6 months. The sweet spot for money needed in a few months.
  • Low duration funds: duration ~6-12 months. For a slightly longer wait.
  • Money market funds: instruments up to 1-year maturity. For parking that stretches toward a year.
The rule of thumb

Match the fund's duration to how long you'll actually be away. Money needed in 6 months? Look at ultra short or money market funds — not a long-duration bond fund that can swing when rates move.

Why not just leave it in the savings account?

Because a savings account is a comfortable trap. It's convenient, it's liquid — and it quietly pays you very little while prices climb. For a week, that's fine. For eight months, Rohan is leaving real money on the table for the sake of not thinking about it.

An ultra short or money market fund aims to do better than a savings account with only modestly more risk, while still letting Rohan pull the money out in a day or two when the wedding invoices start landing. No fixed tenure, no breaking anything, no penalty.

The FD comparison Rohan actually cares about

An FD isn't wrong — it's just rigid. You lock a tenure, and pulling out early usually costs you a slice of interest. These short-duration funds flip that: the return isn't promised in advance (an FD's is), but you get flexibility an FD can't match. If Rohan isn't 100% sure of the exact date he'll need the cash, that flexibility is worth a lot. You can compare the FD side of the trade on our FD calculator.

A fixed deposit rewards certainty. A short-duration fund rewards flexibility. Pick based on how sure you are of the date you'll need the money.

Two things people forget

One: these are low-risk, not no-risk. They aren't guaranteed or insured like a bank deposit. There's a small dose of credit risk (a bond issuer could disappoint) and interest-rate risk (though tiny at these short durations). 'Low volatility' is not the same as 'impossible to lose a rupee'.

Two: the tax angle changed. Since April 2023, gains on debt mutual funds are taxed at your income-slab rate no matter how long you hold — the old long-term indexation benefit is gone. We break this down in debt fund taxation after the 2023 change. The upshot: choose these funds for liquidity and stability, not for a tax break that no longer exists. And this is exactly the shelf you'd raid for an emergency fund too.

What this means for you

The next time you have a chunk of money with a known-ish deadline — a wedding, a down payment, school fees due next year, a tax bill — don't default to either the lazy savings account or the rigid FD. There's a middle lane built precisely for money that's between 'need it tomorrow' and 'won't touch it for years'.

Key takeaways
  • For money needed in a few months to a year, ultra short, low duration and money market funds sit between liquid funds and longer bond funds.
  • Match the fund's duration to your actual time horizon to keep volatility low.
  • They're more flexible than an FD (no fixed tenure, no early-exit penalty) but returns aren't guaranteed.
  • They're low-risk, not risk-free — a small amount of credit and interest-rate risk remains.
  • Since April 2023 all debt-fund gains are taxed at your slab rate, so pick these for liquidity, not tax savings.

Rohan finally moved his ₹4 lakh into a money market fund the same evening, took nine minutes to do it, and went back to arguing about the wedding menu. The money is now working a little harder while it waits — and he can still yank it out in a day or two when the caterer sends the bill. Boring? Completely. Which, for a wedding fund, is exactly the point.

Where do you currently park short-term money you'll need within a year — savings account, FD, or a debt fund — and why? This article is educational and not investment advice. Debt mutual funds carry credit and interest-rate risk and are not guaranteed; consider your own situation or a registered adviser before investing.

Frequently asked questions

What is an ultra short duration fund?

It's a type of debt mutual fund that invests in bonds and money-market instruments with a Macaulay duration of roughly 3 to 6 months. That short duration means its price is fairly insensitive to interest-rate moves, so it tends to be low-volatility — aimed at money you need in a few months to about a year.

What is the difference between a liquid fund, ultra short, low duration and money market fund?

They mostly differ by how long the underlying instruments run. Overnight funds hold 1-day paper (safest, lowest return); liquid funds hold up to 91-day paper (weeks to ~3 months); ultra short funds run about 3-6 months; low duration funds about 6-12 months; money market funds hold instruments up to 1-year maturity. Longer duration usually means slightly higher potential return but a bit more wobble.

Are these funds safe like a fixed deposit?

They are generally low-risk but not risk-free, and unlike a bank FD they are not guaranteed or insured. Returns aren't fixed in advance, and there's a small element of credit and interest-rate risk. The trade-off is more flexibility — no fixed tenure and no premature-withdrawal penalty.

How are these debt funds taxed in India?

Since the April 2023 rule change, gains on debt mutual funds are added to your income and taxed at your slab rate regardless of how long you hold them, with no indexation benefit. That removed the old long-term tax edge, so the choice today is more about liquidity and stability than tax. This is educational information, not tax advice.

#debt funds#mutual funds#investing#personal-finance
About the author
Ananya Rao

Ex-equity research analyst who quit spreadsheets to explain money the way she wishes someone had explained it to her at 22. Writes about investing and markets.

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Disclaimer: This article is for educational and informational purposes only and does not constitute investment, financial, or tax advice. InvestDawn is not a SEBI-registered investment advisor. Please consult a qualified professional before making financial decisions. Read our full disclaimer.

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