How the fixed deposit calculator works
Understanding FD calculations and compound interest.
- Enter Investment DetailsInput principal amount, interest rate, and tenure
- Select Compounding FrequencyChoose how often interest is compounded
- Calculate Maturity AmountGet instant results with detailed breakdown
- Analyze ReturnsReview interest earned and effective rate
A = P(1 + r/n)^(nt)
A = Maturity Amount, P = Principal Amount, r = Annual Interest Rate, n = Compounding Frequency, t = Time Period (Years)
Pro Tip: More frequent compounding (monthly vs annually) results in higher returns due to the power of compound interest.
Fixed deposit terms & definitions
- Fixed Deposit (FD)
- A financial instrument provided by banks and NBFCs that offers investors a higher rate of interest than a regular savings account, until the given maturity date.
- Principal Amount
- The initial amount of money invested in the fixed deposit. This is the base amount on which interest is calculated.
- Interest Rate
- The annual percentage rate at which the bank pays interest on your fixed deposit. Higher rates mean better returns.
- Maturity Amount
- The total amount you receive at the end of the FD tenure, including both principal and accumulated interest.
- Compound Interest
- Interest calculated on the initial principal and also on the accumulated interest from previous periods. This leads to exponential growth.
- Tenure
- The time period for which the money is deposited in the fixed deposit account. Longer tenures typically offer higher interest rates.
- Effective Annual Rate
- The actual annual rate of return taking into account the effect of compounding. It's higher than the nominal rate when compounding occurs more than once per year.
- Premature Withdrawal
- Withdrawing the FD before its maturity date. This usually results in penalty charges and reduced interest rates.
Smart FD investment tips
- Compare Interest Rates: Different banks offer different rates. Compare rates across multiple banks and choose the best option.
- Consider Tax Implications: Interest earned on FDs is taxable. Consider tax-saving FDs or plan your investments accordingly.
- Ladder Your FDs: Invest in multiple FDs with different maturity dates to ensure regular liquidity and better rate opportunities.
- Understand Penalty Charges: Know the penalty for premature withdrawal. Some banks charge 0.5-1% penalty on the applicable interest rate.
- Choose Optimal Tenure: Longer tenures usually offer higher rates, but consider your liquidity needs and interest rate trends.
- Consider Inflation Impact: Ensure your FD rate beats inflation to maintain purchasing power. Real returns = FD rate - inflation rate.
Disclaimer: Fixed deposits are subject to market risks and tax implications. Please consult with a financial advisor for personalized investment advice.
Frequently asked questions
How is FD interest calculated in India?
For cumulative FDs, interest is compounded quarterly: A = P × (1 + r/4)^(4t), where P = principal, r = annual rate, t = tenure in years. For example, ₹1 lakh at 7% for 2 years = ₹1,00,000 × (1 + 0.0175)^8 = ₹1,14,868. Monthly payouts use a different formula without reinvestment.
What is the FD interest rate in 2026?
FD rates in 2026 (general public): SBI: 6.5–7.1%, HDFC Bank: 6.6–7.25%, ICICI Bank: 6.7–7.25%, Axis Bank: 6.7–7.2%, Post Office FD: 6.9–7.5%. Senior citizens get 0.25–0.75% extra. Small finance banks (AU, Jana, Equitas) offer 7.5–8.5%.
Is FD interest taxable?
Yes, FD interest is fully taxable as per your income tax slab. If interest exceeds ₹40,000 per year (₹50,000 for senior citizens), the bank deducts TDS at 10% (if PAN is provided) or 20% (without PAN). You can avoid TDS by submitting Form 15G/15H if your income is below taxable limit.
What are the benefits of Tax Saver FD?
Tax Saver FD (5-year lock-in) allows deduction of up to ₹1.5 lakh under Section 80C (old regime only). The interest is taxable. There is no premature withdrawal allowed. Available in SBI, HDFC, ICICI, and most major banks. Interest is compounded quarterly.
What is the penalty for premature FD withdrawal?
Most banks charge 0.5–1% penalty on the applicable rate for premature withdrawal. For example, if you break a 3-year FD after 1 year, you get the 1-year FD rate minus the penalty. Tax Saver FDs cannot be broken prematurely.
Which is better — FD or RD?
FD is better if you have a lump sum to invest. RD is better for monthly savings. Both offer similar interest rates and both are taxable. For the same amount invested over the same period, FD gives higher maturity value because the full principal earns interest from day 1.