Fixed Deposits (FDs) are the "comfort food" of investing. They are safe, simple, and guaranteed. But for high-income earners, they come with a massive hidden cost: Taxation.
If you are in the 30% tax bracket, earning 7% on an FD means you actually only keep 4.9%. That barely beats inflation! Meet the smarter alternative: the Arbitrage Fund.
1. The Problem with FDs (It's Not Returns)
The problem isn't the interest rate; it's how the government treats that interest. FD interest is added to your total income and taxed at your slab rate.
- Nominal Return: 7.00%
- Tax (30% Bracket): 2.10%
- Net Return in Pocket: 4.90%
You are essentially parking money, not growing it.
2. What is an Arbitrage Fund? (How it Works)
Arbitrage funds are Mutual Funds that profit from the price difference between the Cash Market and the Futures Market. It sounds complex, but it's actually a low-risk, market-neutral strategy based on price differences.
The "Pen" Analogy:
- Imagine you buy a pen in Market A for ₹10.
- At the exact same second, you find a buyer in Market B willing to pay ₹10.50 for it next month.
- You lock in that deal instantly.
- Your profit of ₹0.50 is guaranteed. It doesn't matter if the price of pens crashes to ₹5 or zooms to ₹20. You have already locked your profit.
Because they are fully hedged, they have extremely low risk, comparable to Debt funds. But here is the magic: The government treats them as Equity Funds for tax purposes.
Note: Arbitrage funds are not capital-guaranteed like bank FDs, but their market risk is significantly lower due to fully hedged positions.
3. The Tax Battle: 30% vs 12.5%
This is where Arbitrage funds shine. Since they invest >65% in equity derivatives, the taxman treats them like stock investments.
| Period | Fixed Deposit (FD) Tax | Arbitrage Fund Tax |
|---|---|---|
| Short Term (< 1 Year) | Slab Rate (Up to 30%) | 20% (STCG) |
| Long Term (> 1 Year) | Slab Rate (Up to 30%) | 12.5% (LTCG) *First ₹1.25L profit is Tax-Free |
Check Your Tax Savings
Use our tax calculator to compare the liability on FD interest vs Mutual Fund gains.
Calculate Tax Difference4. Real Life Example: ₹10 Lakh Investment
Let's compare investing ₹10 Lakhs for 1 Year for an investor in the 30% tax bracket.
| Parameter | Fixed Deposit | Arbitrage Fund |
|---|---|---|
| Pre-Tax Return | 7.0% (₹70,000) | 7.0% (₹70,000) |
| Tax Rate | 30% + Cess | 20% (Short Term) |
| Tax Amount | ₹21,840 | ₹14,000 |
| Net Profit | ₹48,160 | ₹56,000 |
| Extra Gain | - | + ₹7,840 |
5. Who Should Choose What?
Choose Fixed Deposit (FD) If:
- You need the money in less than 3-6 months.
- You are in the 0% or 10% tax bracket (FDs are fine here).
- You want 100% capital guarantee (up to ₹5L via DICGC).
Choose Arbitrage Fund If:
- You are in the 20% or 30% tax bracket.
- Your investment horizon is 6 months to 3 years.
- You want better post-tax returns without taking stock market risk.
Avoid Arbitrage Funds If:
- You need the money within a few days (Exit loads often apply for <15-30 days).
- You cannot tolerate slight daily NAV fluctuations (volatility is low, but present).
Also consider the impact of inflation on post-tax returns. Use our Inflation Calculator to see whether your FD or Arbitrage Fund is actually growing your wealth.