Financial Literacy

Real Returns: Why a Fixed Deposit Can Quietly Lose You Money

June 13, 2026 · Rahul Rajgopal · 5 min read

A fixed deposit feels like the safest place to keep money, and in one sense it is, because the rupee number rarely falls. But safety of the number is not the same as safety of the value. Once you account for tax and inflation, a deposit that looks like it is growing can quietly be shrinking in terms of what it can actually buy. This is the gap between a nominal return and a real return, and it is worth understanding clearly.

Start with the headline rate

Imagine a deposit paying around seven percent. On ten lakh rupees, that is about seventy thousand rupees of interest in a year. So far the number is going up, which is the part everyone sees and likes.

Subtract the tax

Interest on a fixed deposit is taxable as part of your income, at your slab rate. For someone in a thirty percent bracket, roughly a third of that interest goes to tax, leaving you closer to forty eight thousand rupees rather than seventy thousand. For someone in a lower bracket the bite is smaller, but it is always there. The headline rate is a pre-tax number, and you spend post-tax money.

Now subtract inflation

Inflation is the quiet part. If prices rise by around six percent over the same year, then the things you were going to buy now cost six percent more. Your post-tax interest has to first cover that increase before any of it counts as real growth. When you do that subtraction, the real return on a fixed deposit for a higher-bracket taxpayer can land near zero, and in some years slightly below it.

In plain terms, the money grew on paper but bought a little less than before. The deposit did not fail. It simply did not do what most people assume it is doing, which is making them better off in real terms.

What this does and does not mean

This is not an argument against fixed deposits. They have a genuine and important role, particularly for money you may need soon, for emergencies, and for anyone who values certainty over growth. The mistake is using them as a long-term wealth-building tool while assuming the headline rate is the real one. For goals that are years away, a return that barely keeps pace with inflation can leave a meaningful shortfall over time.

The useful habit

Whenever you see a rate of return, get into the habit of asking two follow-up questions. What is left after tax, and what is left after inflation. That single reflex changes how you weigh almost every saving and investment option, and it is one of the simplest pieces of financial literacy to carry with you.

Rahul Rajgopal Wealth Advisor · SEBI Registration No. INA000021933 · BASL Membership: 2446
Registration granted by SEBI and membership of BASL do not guarantee performance of the intermediary or provide any assurance of returns to investors. Investment in securities market are subject to market risks. This article is for educational purposes only and does not constitute personalised investment advice. Read all scheme related documents carefully before investing.