Learn before you calculate
Fixed Deposit Calculator: a practical India guide
Estimate the maturity amount and interest on a fixed deposit using the principal, annual rate, tenure and compounding frequency. Compare assumptions before choosing a bank, deposit type or payout option.
Educational estimates, not financial, tax or legal advice
Quick answer
A cumulative FD adds compounded interest to the deposit and pays the maturity value at the end. A non-cumulative FD pays interest periodically, so its cash flow and effective compounding can be different.
How to use this calculator well
- 1Enter the amount you plan to place in the fixed deposit.
- 2Use the annual interest rate quoted for your depositor category and exact tenure.
- 3Select the tenure and compounding frequency that match the deposit terms.
- 4Add your estimated tax rate if you want to understand the possible post-tax return.
- 5Compare maturity value, total interest and effective yield with other tenures before booking the FD.
Formula and method
Compound-interest formula for a cumulative FD
A = P × (1 + r ÷ n)^(n × t)
P is principal, r is the annual rate in decimal form, n is the number of compounding periods per year and t is tenure in years. Banks may calculate broken periods and payout products differently.
How fixed-deposit maturity is calculated
With a cumulative fixed deposit, interest is periodically added to the balance, and later interest is calculated on the larger amount. That is why two FDs with the same advertised rate can produce different maturity values when their compounding frequencies or tenures differ.
For a non-cumulative FD, interest is paid monthly, quarterly, half-yearly or annually. The periodic payout may help with income needs, but the payout amount should not be compared directly with a cumulative maturity value without considering reinvestment.
FD rates, tenure and senior-citizen assumptions
FD rates are set by the institution and can vary by deposit size, tenure, payout mode and depositor category. Senior-citizen additions are institution-specific. Always enter the rate shown in the current product terms rather than relying on a rate remembered from an advertisement.
A longer tenure does not automatically mean a higher rate. Banks often publish rate buckets, and an extra day can sometimes place a deposit in a different bucket. Compare the exact maturity date and liquidity you need.
Tax, TDS and the post-tax FD return
FD interest is generally included in taxable income according to applicable rules. TDS is only tax collected at source; it is not necessarily your final tax liability. Your return should therefore be evaluated after considering your tax position, not just the pre-tax interest shown by the bank.
Eligibility for forms such as 15G or 15H depends on legal conditions. Do not submit a declaration only to avoid TDS without checking that you qualify.
Safety, premature withdrawal and laddering
Before chasing a higher rate, check who accepts the deposit, its credit risk, withdrawal rules and whether DICGC insurance applies. DICGC states that eligible bank deposits are insured up to the prescribed limit for principal and interest held in the same right and capacity.
Instead of locking the entire amount for one date, an FD ladder divides money across maturities. It can improve access to cash and lets part of the portfolio renew at future rates, though it does not remove reinvestment or tax risk.
Questions people ask
Fixed Deposit Calculator FAQs
Concise answers to common planning questions. Open any question for the full explanation.
How do I calculate FD maturity amount?
Enter the principal, annual rate, tenure and compounding frequency. The calculator compounds the balance for the selected period and shows estimated maturity value and interest.
What is the difference between cumulative and non-cumulative FD?
A cumulative FD reinvests interest until maturity. A non-cumulative FD pays interest at intervals, which may suit income needs but usually changes the compounding outcome.
Is FD interest taxable in India?
FD interest is generally taxable according to the depositor’s applicable tax rules. TDS, if deducted, is an advance collection and may not equal the final tax due.
Does no TDS mean no tax on FD interest?
No. A bank not deducting TDS does not by itself make the interest tax-free. Include taxable interest when determining your final liability.
How does quarterly compounding affect an FD?
Interest is added four times a year, so later quarters earn interest on earlier credited interest. The effective annual yield can therefore be higher than the nominal annual rate.
Do senior citizens always receive a higher FD rate?
Many institutions offer an additional rate, but the amount and eligibility vary. Use the rate in the current deposit terms for the relevant customer category.
What happens if I break an FD before maturity?
The institution may apply the rate for the actual completed tenure and deduct a premature-closure penalty. The final amount can be lower than the original maturity estimate.
Is every fixed deposit covered by DICGC?
No. DICGC coverage applies to eligible deposits with insured banks under its rules. Corporate deposits and deposits with entities outside the insured-bank framework need separate risk assessment.
What is the DICGC insurance limit?
DICGC currently explains coverage up to ₹5 lakh for principal and interest per depositor, per bank, in the same right and capacity. Check DICGC for the latest rule before relying on it.
Can I take a loan against an FD?
Many institutions allow an overdraft or loan against eligible FDs. The permitted amount, interest spread and lien conditions depend on the institution.
What is an FD ladder?
It is a set of fixed deposits with different maturity dates. The structure creates periodic liquidity and reduces the need to renew the entire amount at one future interest rate.
Why is the bank maturity value slightly different from the calculator?
Differences can come from day-count conventions, broken periods, rounding, payout timing, tax deduction or product-specific compounding. The bank’s deposit advice and terms govern the actual payment.