How FD vs Debt Fund Comparison Works
This calculator compares post-tax returns between Fixed Deposits and Debt Mutual Funds. FD interest is taxed at your slab rate, while debt funds benefit from indexation if held for 3+ years, making them more tax-efficient for long-term investors.
Formula
FD Post-Tax Return = FD Interest × (1 - Tax Slab Rate)
Debt Fund LTCG Tax = (Gains - Indexed Cost) × 20%
Debt Fund STCG Tax = Gains × Slab RateTax Treatment Comparison
| Aspect | Fixed Deposit | Debt Mutual Fund |
|---|---|---|
| Taxation | Interest taxed at slab rate | STCG at slab, LTCG at 20% |
| Indexation | Not available | Available for 3+ years |
| Risk | Very low (insured up to ₹5L) | Moderate (credit + interest rate risk) |
| Liquidity | Penalty on premature withdrawal | Can redeem anytime (exit load may apply) |
When to Choose Debt Funds Over FDs
- •You're in the 20-30% tax bracket and can hold for 3+ years
- •You want indexation benefit to reduce taxable gains
- •You need liquidity without penalty (though exit load may apply)
- •You're comfortable with moderate risk for potentially higher returns
Common questions
How is FD interest taxed?
FD interest is added to your income and taxed at your income tax slab rate. If you're in the 30% bracket, you pay 30% tax on FD interest.
How are debt mutual funds taxed?
Debt fund gains are taxed as Short-Term Capital Gains (STCG) at slab rate if held less than 3 years, or Long-Term Capital Gains (LTCG) at 20% with indexation benefit if held 3+ years.
What is indexation benefit?
Indexation adjusts your purchase price for inflation using the Cost Inflation Index (CII), reducing taxable gains. This makes debt funds more tax-efficient for long-term holdings.
When do debt funds beat FDs?
Debt funds typically beat FDs for investors in higher tax brackets (20-30%) holding for 3+ years, due to indexation benefit and lower LTCG tax rate.
Are debt funds risk-free like FDs?
No. Debt funds carry credit risk, interest rate risk, and market volatility. FDs are safer with deposit insurance up to ₹5 lakh per bank.
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Request a calculator →Disclaimer: FD vs debt fund comparison is for planning purposes only. Debt fund returns are not guaranteed and carry market risk. Tax laws are subject to change. Consult a financial adviser for personalized advice.
Last updated: May 2026