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Knowledge Base

Fixed Deposit (FD)

Maturity = P × (1 + r/4)^(4×n) (quarterly compounding)
FD interest rates: 6-7.5% for general, 6.5-8% for senior citizens (50 bps extra).
Tax-saver FD: 5-year lock-in, deduction under 80C. But interest is still taxable.
Premature withdrawal: 0.5-1% penalty on interest rate. Check terms before locking in.
Ladder your FDs: Split into 1, 2, 3, 5-year FDs for liquidity and rate optimization.
FD interest above ₹40K/year (₹50K for seniors) attracts 10% TDS. Submit 15G/15H to avoid.
Pro Tip
Post-tax FD return for 30% bracket: 7% FD → ~4.9% after tax → ~-1% real return after inflation. Consider better alternatives.

Fixed Deposit (FD) - Complete Guide

Everything you need to know about Fixed Deposit (FD) and how to optimize your financial strategy.

Understanding the Formula

The core calculation is based on:

Maturity = P × (1 + r/4)^(4×n) (quarterly compounding)

Key Concepts & Rules

  • FD interest rates: 6-7.5% for general, 6.5-8% for senior citizens (50 bps extra).
  • Tax-saver FD: 5-year lock-in, deduction under 80C. But interest is still taxable.
  • Premature withdrawal: 0.5-1% penalty on interest rate. Check terms before locking in.
  • Ladder your FDs: Split into 1, 2, 3, 5-year FDs for liquidity and rate optimization.
  • FD interest above ₹40K/year (₹50K for seniors) attracts 10% TDS. Submit 15G/15H to avoid.

Expert Strategy

Post-tax FD return for 30% bracket: 7% FD → ~4.9% after tax → ~-1% real return after inflation. Consider better alternatives.

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