PPF vs FD vs Debt Fund: Real Post-Tax Returns Compared
PPF is tax-free but locked 15 years. FDs are taxed heavily. Debt funds have indexation. We compare actual take-home across all three.
₹10L invested for 5 years — real returns comparison
but only if you can lock for 15 years
PPF: the tax-free champion with a catch
PPF earns 7.1% (current rate, revised quarterly) completely tax-free. No TDS, no capital gains. The real return after 5% inflation is ~2%. The catch: 15-year lock-in with partial withdrawal only after year 7. If you need the money before 15 years, PPF is not an option. You can invest ₹500 to ₹1.5L per year.
FD: the worst option for high-income earners
At 7.5% in the 30% bracket, your post-tax return is 5.25%. After inflation: 0.15%. FDs also require you to pay tax on accrued interest annually (for amounts above ₹40K interest/year). The only advantage: guaranteed returns and DICGC insurance up to ₹5L per bank. For amounts above ₹5L, even the guarantee has limits.
Debt funds: the tax-efficient middle ground
Debt mutual funds (now taxed as per income slab for purchases after April 2023) have lost their indexation benefit for new investments. But existing holdings before April 2023 still enjoy LTCG with indexation — effective tax rate of 5–8% vs 30% for FDs. For new investments, debt funds and FDs are taxed similarly, but debt funds offer better liquidity and no TDS.
What to do
1. **Max out PPF first** (₹1.5L/year) — it's the only truly tax-free fixed income option.\n\n2. **Use debt funds for amounts above ₹1.5L** — better liquidity than FDs, similar tax treatment post-2023.\n\n3. **FDs only for emergency fund and senior citizens** — the tax hit is too heavy for wealth building.\n\n4. **Don't compare headline rates** — always compare post-tax, post-inflation returns. That's the honest number.