You have money you will need soon, and a date attached to it. Six months until a medical procedure. A year until the car. Eighteen months until the holiday you have half-promised the family.
It should not sit in a savings account earning almost nothing, and it certainly should not go anywhere it can fall thirty per cent. So you look at the two obvious homes for it — a bank fixed deposit, or a debt mutual fund — and find everyone has an opinion and nobody explains why.
These two are genuinely close. Both are lending, not ownership: a deposit lends your money to a bank, a debt fund lends it to governments and companies across many borrowers. The differences are real, but subtle.
One return is contracted. The other is not.
The deposit tells you the number on day one and honours it if you stay to maturity. The debt fund tells you nothing. It holds bonds whose market value is recalculated every business day, and your unit value moves with them.
Most of the time that movement is small and upward, which is why people describe debt funds as deposits with a better rate. They are not. They are lower-volatility investments, not certainties. Two things push the value around.
Interest rates
Bond prices and interest rates move in opposite directions. If rates rise, the bonds a fund already holds — issued at yesterday's lower rate — become less attractive and their market value falls. The longer the average maturity, the harder that bites: very short-dated instruments barely feel it, long-dated government bonds can drop noticeably.
Which matters most in exactly the situation above. If rates move against the fund in the month you need the money, you take the hit, because the date is fixed.
Credit
A debt fund earns more when it lends to weaker borrowers. That extra is not free money; it is payment for accepting a chance of not being repaid. When a borrower is downgraded or defaults, the holding is written down and every unit-holder wears it that day. This has happened in India, in funds regarded as safe parking.
A deposit's version is the bank's ability to pay, and deposits at scheduled banks carry insurance cover up to a limit per depositor per bank. That limit has been revised over time, so check where it stands.
Getting the money out
A deposit can usually be broken early, with the bank applying a penalty — predictable, and a known haircut. An open-ended debt fund is redeemed at the value on the day: no penalty in most short-duration categories, but no protection either.
How gains are treated — and why you must look it up
Deposit interest is generally taxed as income and picked up as it accrues, whether or not you have withdrawn it, with tax deducted at source past a threshold. A debt fund produces nothing taxable until you sell.
For years, that timing difference — together with a more favourable treatment of gains held beyond a defined period — was the main argument made for debt funds. That treatment has since been changed. Any article assuming the old position, this one's earlier version included, is out of date. Check the current position for the category you are considering, in the year you are investing.
What the difference means for you
Neither is the safe one and the clever one. A deposit hands the uncertainty to the bank and gives you a known number on a known date. A debt fund keeps the uncertainty with you, in exchange for daily access and whatever the market is paying.
Which suits money you need in nine months is a question about the money, not the products. How firm is the date? If the amount is five per cent short that day, is it an inconvenience or does it break the plan? Answer that, and the choice largely makes itself.
This article is general information for education only. It is not investment advice and does not take account of your circumstances. Investments in securities are subject to market risks; please read all related documents carefully before investing.
