FD Calculator India — Fixed Deposit Calculator 2026
Calculate your Fixed Deposit maturity amount, interest earned, and TDS for FY 2025-26. Compare FD returns with PPF, debt mutual funds, and equity. Senior citizen rates, Form 15G/15H eligibility, and post-tax analysis included.
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How to Use This Calculator
FD Returns tab
Enter your deposit amount, interest rate, tenure, and compounding frequency. The calculator shows your maturity amount, total interest earned, periodic breakdowns, and estimated TDS. Toggle the senior citizen option for the +0.50% rate bonus.
Tax on FD Interest tab
Enter your annual FD interest and total income to see your TDS deduction, actual tax liability at your marginal slab rate, and whether you are eligible for Form 15G/15H. Compare New Regime vs Old Regime, and see the Section 80TTB benefit for senior citizens.
FD vs Other Options tab
Compare the same amount in Fixed Deposit vs PPF vs Debt Mutual Fund vs Equity Mutual Fund. See post-tax returns for each option side by side. Useful for deciding where to park your money based on your risk appetite and time horizon.
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The Formula
Fixed Deposits use compound interest. Most banks compound quarterly. The formula is:
A = P × (1 + r/n)n×t
Where:
P = Principal (deposit amount)
r = Annual interest rate (as decimal)
n = Compounding frequency per year (4 for quarterly)
t = Tenure in years
Example:
P = ₹5,00,000, r = 7.10%, n = 4 (quarterly), t = 3 years
A = 5,00,000 × (1 + 0.071/4)4×3
A = 5,00,000 × (1.01775)12
A = 5,00,000 × 1.2352 = ₹6,17,614
Interest earned = ₹1,17,614
TDS (Section 194A):
10% on interest above ₹40,000/year (₹50,000 for senior citizens)
20% if PAN not submitted
Senior Citizen Bonus:
+0.50% p.a. above general citizen rate at most banks
The key insight: quarterly compounding gives slightly higher returns than annual compounding. On a ₹5 lakh FD at 7.1% for 3 years, the compounding benefit is approximately ₹1,500–2,000 compared to simple interest.
Example
Priya — IT professional depositing ₹5 lakh FD at SBI
Priya is 32, earns ₹12 lakh/year, and wants to park ₹5 lakh in a 3-year FD at SBI at 7.10% quarterly compounding.
Step 1: Calculate maturity
Step 2: Tax impact
Step 3: Post-tax return
Priya earns ₹1,17,614 interest over 3 years, but after 15% tax, her effective return is about 6.03%. If she had put the same ₹5 lakh in PPF at 7.1%, the entire interest would be tax-free.