A 7% fixed deposit sounds like a safe, decent return. But after you subtract income tax and inflation, the real picture is startling: for anyone in the 20% or 30% tax bracket, a 7% FD actually delivers negative real returns. Your purchasing power is shrinking every year despite earning interest. This isn't opinion — it's math. And it's the reason ₹10 lakh in an FD for 20 years grows to ₹38.7 lakh nominally but only ₹12.1 lakh in today's purchasing power — barely more than you started with.
This guide shows you the exact calculations across every tax bracket, compares FD real returns against alternatives, and explains when FDs are genuinely useful (spoiler: short-term goals and emergency funds only). If you understand the Rule of 72, you already know that at 6% inflation prices double every 12 years — your FD needs to at least match that pace after tax.
Use our FD Calculator for nominal projections and our Inflation Calculator to see the inflation-adjusted reality. Compare with our Purchasing Power Calculator.
The Real Return Formula: What Your FD Actually Earns
For a 7% FD in the 30% bracket: Post-tax = 7% × (1 - 0.30) = 4.9%. Real return = (1.049 / 1.06) - 1 = -1.04%. The negative sign means your FD is destroying purchasing power. For the complete mathematical framework, see our real rate of return formula guide.
FD Real Returns by Tax Bracket: The Complete Matrix
| FD Rate | Tax Bracket | Post-Tax Return | Real Return (6% inf) | ₹10L After 10 Yrs (Real) | Verdict |
|---|---|---|---|---|---|
| 7% | 0% (below ₹7L) | 7.0% | +0.94% | ₹10.97L | Marginally beats inflation ✅ |
| 7% | 5% | 6.65% | +0.61% | ₹10.63L | Barely positive ≈ |
| 7% | 10% | 6.3% | +0.28% | ₹10.28L | Near-zero real return ⚠️ |
| 7% | 15% | 5.95% | -0.05% | ₹9.95L | Negative — losing money ❌ |
| 7% | 20% | 5.6% | -0.38% | ₹9.63L | Negative — losing money ❌ |
| 7% | 25% | 5.25% | -0.71% | ₹9.31L | Negative — losing money ❌ |
| 7% | 30% | 4.9% | -1.04% | ₹9.01L | Wealth destruction ❌ |
| 7.5% (Sr Citizen) | 0% | 7.5% | +1.42% | ₹11.51L | Best FD scenario ✅ |
| 7.5% (Sr Citizen) | 20% | 6.0% | 0.00% | ₹10.00L | Breakeven — no real gain ⚠️ |
| 7.5% (Sr Citizen) | 30% | 5.25% | -0.71% | ₹9.31L | Still negative ❌ |
The table reveals the uncomfortable truth: for anyone earning above approximately ₹10-12 lakh annually (15%+ bracket under new regime), FDs deliver zero or negative real returns. The only FD scenario that genuinely beats inflation is a senior citizen in the 0% bracket earning 7.5% — and even that gives just 1.42% real growth.
The 20-Year Comparison: FD vs Equity vs PPF (₹10 Lakh Invested)
| Instrument | Return | Post-Tax | ₹10L Nominal (20 Yrs) | ₹10L Real (20 Yrs) | Real Wealth Created |
|---|---|---|---|---|---|
| Cash in locker | 0% | 0% | ₹10 lakh | ₹3.1 lakh | -₹6.9 lakh destroyed |
| Savings account | 2.5% | 2.5% | ₹16.4 lakh | ₹5.1 lakh | -₹4.9 lakh destroyed |
| FD (30% bracket) | 7% | 4.9% | ₹26.1 lakh | ₹8.1 lakh | -₹1.9 lakh destroyed |
| RD (30% bracket) | 7% | 4.9% | Similar | Similar | Same as FD |
| PPF (tax-free EEE) | 7.1% | 7.1% | ₹39.5 lakh | ₹12.3 lakh | +₹2.3 lakh created ✅ |
| EPF (tax-free) | 8.25% | 8.25% | ₹49 lakh | ₹15.3 lakh | +₹5.3 lakh created ✅ |
| SCSS (Sr Citizen) | 8.2% | ~5.7% | ₹30.6 lakh | ₹9.5 lakh | Near breakeven |
| Gold (SGB) | 11%+2.5% | ~12% | ₹96.5 lakh | ₹30.1 lakh | +₹20.1 lakh created ✅ |
| Equity SIP (Nifty) | 12% | ~11.3% | ₹96.5 lakh | ₹30.1 lakh | +₹20.1 lakh created ✅ |
| Flexi-cap MF | 13% | ~12.2% | ₹1.15 crore | ₹35.9 lakh | +₹25.9 lakh created ✅ |
The contrast is devastating: ₹10 lakh in FD for 20 years destroys ₹1.9 lakh of purchasing power. When the RBI raises the repo rate (currently around 6%) to combat inflation, FD rates rise too — but never enough to overcome the tax+inflation double drag. Equity funds face only LTCG at 12.5% (above ₹1.25L) and STCG at 20% — far more tax-efficient than FD interest taxed at your full slab rate. The same amount in equity SIP creates ₹20.1 lakh of real wealth — a ₹22 lakh swing. Even the safest alternative, PPF, creates ₹4.2 lakh more real wealth than FD. This is why financial literacy advocates consistently say: FDs don't beat inflation for wealth building. For SIP vs lumpsum comparison in equity, see our detailed guide.
Compare FD vs SIP Returns
See side-by-side projections of FD and equity SIP over any time period — in both nominal and inflation-adjusted terms.
Open FD Calculator →When FDs Are Genuinely Useful
Despite negative real returns for most brackets, FDs serve specific purposes where safety and liquidity matter more than real growth:
| Use Case | Why FD Works | Horizon | Alternative to Consider |
|---|---|---|---|
| Emergency fund (6 months expenses) | Instant liquidity, guaranteed capital | Ongoing | Liquid mutual fund (5-6%, higher return) |
| Short-term goal (1-3 years) | Capital protection, known maturity | 1-3 years | Short-duration debt fund, arbitrage fund |
| Senior citizen income (0% bracket) | 7.5% tax-free, genuine real return | 1-5 years | SCSS (8.2%), PMVVY |
| Parking money before STP deployment | Temporary holding for equity transition | 3-12 months | Liquid fund (better for STP) |
| Section 80C tax saving (if needed) | ₹1.5L deduction, 5-year lock-in | 5 years locked | ELSS (equity returns + same 80C benefit) |
Notice the common thread: FDs are useful for short-term needs, not long-term wealth building. For any goal beyond 5 years — retirement, children's education, wedding, corpus building — equity via SIP or Step-Up SIP creates dramatically more real wealth. The cost of delay in switching from FD to equity compounds against you every year — quantify it with our Cost of Delay Calculator.
TDS on FD: Rules You Must Know
Banks deduct Tax Deducted at Source (TDS) on FD interest under Section 194A of the Income Tax Act. Key rules: TDS at 10% is deducted when annual FD interest exceeds ₹40,000 (₹50,000 for senior citizens aged 60+). If PAN is not provided, TDS jumps to 20%. TDS applies to cumulative FDs too — banks calculate annual accrued interest via compound interest and deduct TDS even if you haven't received the interest. For non-cumulative FDs (quarterly/monthly payout), TDS is deducted at each payout. To prevent TDS when you're not liable for tax, submit Form 15G (below 60 years) or Form 15H (60+ years) at the start of each financial year. You can split FDs across banks to stay below the ₹40,000 threshold per bank — but this is complex and the interest is still taxable in your ITR. Always compare FD taxation under the old vs new tax regime — the old vs new regime choice with our Income Tax Calculator and optimize 80C with our Tax Savings Calculator.
The FD Laddering Strategy
If you must use FDs (for emergency or short-term needs), FD laddering reduces the impact of interest rate risk. Instead of putting ₹5 lakh in one 5-year FD, split it into five FDs of ₹1 lakh each with 1, 2, 3, 4, and 5-year tenures. Each year, one FD matures — you can reinvest at the prevailing (potentially higher) rate. This provides regular liquidity (one FD matures annually, avoiding premature withdrawal penalties), interest rate flexibility (if rates rise, you reinvest at higher rates sooner), and averaging of interest rate cycles (smooths out high and low rate periods). Laddering doesn't solve the negative real return problem — it only optimizes within the FD universe. For wealth creation, combine a small FD ladder for safety with equity SIP for growth.
The bottom line: understand what FDs can and cannot do. They preserve nominal capital with certainty — no market risk, no principal loss (up to ₹5 lakh DICGC insured). But they cannot build real wealth for taxpaying Indians. Every year you keep long-term money in FDs instead of equity, you're choosing guaranteed purchasing power erosion over probable purchasing power growth. The math doesn't lie. Explore gold vs FD vs equity real returns and compare retirement instruments in our NPS vs PPF vs EPF guide. Check your salary hike vs inflation with our Salary Hike Calculator, and learn about the CPI that measures your real inflation. For India's inflation history, see our decade-by-decade data.