Real rate of return vs nominal return — why your FD may be losing money
FD returns look positive, but after 6% inflation, a 7% FD yield leaves just 1% real gain. Learn how to calculate your actual purchasing power.
You’ve been doing the right thing. Putting money into a fixed deposit every year, watching the balance grow, feeling responsible. But here’s the uncomfortable truth: that growing number in your passbook might actually represent less purchasing power than when you started. Not because the bank made a mistake — because of how inflation quietly eats your returns before you even notice.
This is the difference between nominal return and real rate of return, and once you understand it, you’ll never look at an FD interest rate the same way.
What Nominal Return Actually Means
The number SBI or HDFC shows you — say, 7% per annum on a 1-year FD — is your nominal return. It’s the return before you account for anything else: inflation, taxes, nothing. It’s the headline number, and banks love to lead with it because it sounds good.
Take a concrete example. You’re earning ₹75,000 a month in Pune, you’ve saved up ₹3,00,000, and you park it in an HDFC FD at 7% for one year. At the end of the year, you have ₹3,21,000. Looks like a ₹21,000 gain. That’s the nominal return doing its job — it’s not lying to you, it’s just not telling you the whole story.
The Real Rate of Return: What You’re Actually Earning
The real rate of return is what’s left after you subtract inflation. It tells you whether your money is genuinely growing in terms of what it can actually buy — groceries, rent, school fees — or just growing on paper.
The formula is straightforward:
Real Return ≈ Nominal Return − Inflation Rate
(There’s a more precise version, but this gets you close enough for real-world decisions.)
India’s retail inflation — tracked by the Consumer Price Index (CPI), which measures how much a typical basket of goods costs — has averaged around 5–6% over the last few years. In FY2024, it hovered around 5.4%.
So go back to your ₹3,00,000 FD earning 7%. Subtract 5.4% inflation:
Real return = 7% − 5.4% = 1.6%
Your ₹3,00,000 grew to ₹3,21,000, yes — but things that cost ₹3,00,000 last year now cost roughly ₹3,16,200. You’re actually ahead by only about ₹4,800 in real terms. Not ₹21,000.
Now Add Tax, and Things Get Worse
Here’s where it really stings. FD interest is fully taxable as per your income tax slab. If you’re in the 30% tax bracket (which kicks in above ₹15 lakh annual income under the old regime, or effectively at similar levels under the new one), a third of your interest goes straight to the government.
Back to the example. Your ₹21,000 in FD interest gets taxed at 30%, leaving you with ₹14,700. Your post-tax nominal return is now roughly 4.9%.
Subtract 5.4% inflation from that:
Real post-tax return = 4.9% − 5.4% = −0.5%
Negative. Your FD is losing money in real terms. You worked hard, saved ₹3,00,000, did everything “right” — and ended up with slightly less purchasing power than you started with.
| Numbers | |
|---|---|
| FD amount | ₹3,00,000 |
| Nominal interest rate | 7% |
| Interest earned | ₹21,000 |
| Tax (30% slab) | ₹6,300 |
| Post-tax interest | ₹14,700 |
| Post-tax return | ~4.9% |
| Inflation (CPI, FY24) | 5.4% |
| Real post-tax return | −0.5% |
So What Should You Actually Do?
Don’t abandon FDs completely — they have a real role in your financial life. For your emergency fund (3–6 months of expenses, so roughly ₹2–4 lakh if you’re spending ₹50,000–₹70,000/month), an FD makes sense. Stability and liquidity matter more than returns for that bucket.
But for money you’re setting aside to build wealth over 5, 10, or 15 years — money you won’t need next month — keeping it in FDs is a slow leak. Equity mutual funds, invested through platforms like Groww, Kuvera, or Zerodha Coin, have historically delivered CAGR (Compound Annual Growth Rate — the year-on-year growth rate if growth were perfectly steady) of 11–13% over 10-year periods for diversified index funds tracking the Nifty 50.
Even after factoring in long-term capital gains tax (10% on gains above ₹1 lakh) and average inflation, the real post-tax return from equity funds over the long run has comfortably beaten FDs. That gap — between roughly −0.5% real return from FDs and potentially +5–6% real return from equity — is the difference between your money standing still and genuinely working for you.
The simple move: keep 3–6 months of expenses in an FD or high-yield savings account. Put everything beyond that — money you’re saving for a goal 5+ years away — into a diversified equity mutual fund through a monthly SIP. Even ₹5,000 a month started at 28 compounds into something meaningful by 40.
Frequently Asked Questions
Is FD interest really taxed at 30%?
Yes, if your total annual income crosses ₹15 lakh under the old tax regime (or roughly similar thresholds under the new regime). FD interest is added to your income and taxed at your applicable slab rate — there’s no special flat rate. The bank deducts TDS at 10%, but you pay the balance when filing your ITR.
What is the current SBI FD interest rate?
As of mid-2025, SBI offers around 6.8–7.1% on 1–3 year FDs for regular citizens, with senior citizens getting an additional 0.5%. Rates change periodically based on RBI’s repo rate decisions.
Are tax-saving FDs better because they come under 80C?
Tax-saving FDs (with a 5-year lock-in) reduce your taxable income by up to ₹1.5 lakh under Section 80C, which does improve the math. But the interest you earn at the end is still taxable. ELSS mutual funds offer the same 80C benefit, historically better returns, and a shorter lock-in of just 3 years — so for most people in the 25–40 age bracket, ELSS is the stronger option.
Does inflation always stay around 5–6%?
Not always — it fluctuates. But India’s average CPI inflation over the last decade has been in the 5–6% range. The RBI targets 4% with a tolerance band of +/−2%, so planning around 5–5.5% is a reasonable working assumption for long-term calculations.
What if I’m not comfortable with stock market risk?
That’s fair. If you want something safer than equity but better than FDs in real terms, look at RBI Floating Rate Savings Bonds (currently around 8.05%, though not freely tradeable) or debt mutual funds for medium-term goals. For long-term goals like retirement or a home purchase 10 years out, the volatility of equity funds tends to smooth out — and the real return difference is significant enough to matter.