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What is a Fixed Deposit (FD) in India?

A Fixed Deposit (FD) is one of the safest and most popular investment instruments offered by banks and Non-Banking Financial Companies (NBFCs) in India. When you open a Fixed Deposit, you deposit a lump sum of money for a predetermined period (ranging from 7 days to 10 years) at a fixed interest rate that is higher than standard savings account rates.

Once your deposit is locked in, the interest rate remains constant throughout the chosen tenure, regardless of any future market fluctuations or changes in central bank rates (RBI repo rates). This makes FDs a highly reliable vehicle for risk-averse investors, senior citizens, and anyone looking to preserve their capital while earning guaranteed, predictable returns.

How Fixed Deposit Interest Compounding Works

When opening an FD, you can choose between two main structures depending on your liquidity and financial needs:

Cumulative Fixed Deposits: The interest earned on your deposit is not paid out regularly; instead, it is accumulated and reinvested back into the principal amount on a quarterly compounding basis. The total accrued interest plus the principal amount is paid out as a lump sum upon maturity. This structure maximizes yield due to compounding.
Non-Cumulative Fixed Deposits: The interest earned is paid out at regular intervals (monthly, quarterly, or half-yearly) directly into your linked savings account. This is an excellent choice for retirees or individuals seeking a steady, passive income stream.

How to Use our Free Online FD Calculator

Determine your exact maturity value and interest earnings instantly by updating the simple inputs:

Total Investment (₹): Input the lump-sum principal amount you wish to deposit.
Rate of Interest (p.a. %): Enter the annual rate offered by your chosen bank. FDs in India typically yield between 6.0% and 7.8% p.a. depending on tenure, bank, and age group.
Time Period (Years): Choose your lock-in tenure.

Mathematical Formula for FD Compounding

Our calculator uses the standard quarterly compounding formula mandated by the Reserve Bank of India (RBI) for commercial banks:

A = P × (1 + r/n)^(n × t)

Where the mathematical variables denote the following attributes:

A = Maturity Amount (the total payout you receive)
P = Principal amount (the initial lump-sum deposit)
r = Annual interest rate (expressed as a decimal, e.g. 7% = 0.07)
n = Number of compounding periods per year (equal to 4 for standard quarterly compounding)
t = Lock-in tenure of the deposit in years

FD Growth Projections: A Maturity Case Study

To visualize the compound growth on a secure deposit, let us analyze a deposit of ₹1,00,000 at a rate of 7.00% p.a. under quarterly compounding:

Tenure (Years)	Invested Capital	Total Interest Earned	Final Maturity Value
1 Year	₹1,00,000	₹7,186	₹1,07,186
3 Years	₹1,00,000	₹23,144	₹1,23,144
5 Years	₹1,00,000	₹41,478	₹1,41,478
10 Years	₹1,00,000	₹1,00,160	₹2,00,160

The Power of Reinvestment: Compounding quarterly increases your effective interest yield. For a 10-year lock-in, your money doubles entirely (100.16% return) purely through low-risk compound accumulation.

Key Benefits of Investing in Fixed Deposits

Uncompromising Security: Fixed deposits do not fluctuate with equity market corrections. Additionally, the DICGC (a wholly-owned subsidiary of RBI) guarantees deposits up to ₹5,000,000 per depositor per bank, keeping your cash entirely secure.
Section 80C Tax Savings: Specialized 5-year lock-in Fixed Deposits qualify for tax deductions up to ₹1,50,000 under Section 80C of the Indian Income Tax Act.
Extra Premium for Senior Citizens: Almost all commercial banks in India offer senior citizens (aged 60 and above) a premium interest rate, typically 0.50% to 0.75% p.a. higher than standard retail slabs.
Highly Flexible Loans: In emergencies, you do not have to break your deposit and pay premature penalties; you can borrow a cheap loan or overdraft up to 90% of the value of your FD.

Critical FD Tax & TDS Rules You Must Know

Interest is Fully Taxable: FD interest is not tax-free. It is fully clubbed with your gross annual income and taxed at your applicable income tax slab rates.
Tax Deducted at Source (TDS): If your total interest earnings across a bank exceed ₹40,000 in a financial year (₹50,000 for senior citizens), the bank is mandated to deduct a 10% TDS (Tax Deducted at Source). If you fail to submit your PAN details, the TDS rate rises to 20%.
How to Avoid TDS: If your total taxable income is below the minimum taxable threshold, you can submit **Form 15G** (Form 15H for senior citizens) to your bank at the start of the financial year to request zero TDS deductions.

Frequently Asked Questions (FAQs)

Yes, SBI periodically extends the validity of the WeCare scheme for senior citizens. It offers a 1.00% interest rate premium over standard retail rates for tenures of 5 years and above.

SBI Sarvottam is a specialized, non-premature fixed deposit scheme that requires a minimum deposit of ₹15 Lakhs. Because premature withdrawal is not permitted, the bank pays a higher yield (0.30% to 0.40% higher than retail FDs).

SBI follows RBI compounding norms where interest is computed every quarter and added to the principal. The next quarter's interest is calculated on this cumulative amount, maximizing yield upon maturity.

Banks deduct a 10% TDS if the total interest earned across all your FDs in a bank exceeds ₹40,000 in a year (₹50,000 for senior citizens). If you have not provided your PAN card, the TDS rate increases to 20%.

Yes, most banks allow premature withdrawals. However, they will penalize you by charging a premature closure fee (typically 0.5% to 1.0%), which is deducted directly from the interest rate you earned during the period the deposit remained with the bank.

Tax-saving FDs are specialized deposits that carry a mandatory lock-in period of 5 years. They qualify for income tax deductions up to ₹1.5 Lakhs under Section 80C. Unlike standard FDs, premature withdrawals are strictly prohibited.

Yes, senior citizens (individuals aged 60 and above) are offered a premium rate on fixed deposits. This is typically an additional 0.50% to 0.75% per annum higher than the standard retail interest rate offered to general citizens.

State Bank of India (SBI) Fixed Deposits: Comprehensive Analysis

As the largest public sector bank in India, the State Bank of India (SBI) is widely trusted by millions of savers for its rock-solid security and extensive branch network. Investing in an SBI Fixed Deposit gives you guaranteed capital preservation, stable interest income, and complete peace of mind.

SBI Special FD Schemes: Amrit Kalash & WeCare

SBI frequently introduces special, time-bound high-yield FD schemes that offer substantially higher interest yields compared to their traditional retail deposit tenures:

SBI Amrit Kalash Scheme (400 Days): This is one of the most popular short-term investment schemes, yielding 7.10% p.a. for general retail depositors and a generous 7.60% p.a. for senior citizens. The interest compounding happens quarterly, and it allows both premature withdrawal and loan facility.
SBI WeCare Senior Citizen Scheme: Specially designed to safeguard the savings of elderly citizens, this scheme offers an additional premium of 0.50% p.a. over and above the existing 0.50% senior citizen premium (totaling 1.00% extra yield) on tenures of 5 years to 10 years. This makes it an ideal choice for long-term retirement planning.
SBI Sarvottam deposits: Designed for depositors willing to lock in large funds (₹15 Lakhs to ₹2 Crores) without premature withdrawal facilities. Sarvottam offers 0.30% to 0.40% higher yields than standard retail deposits.

How to Open an SBI FD Instantly via YONO App

You no longer need to stand in long bank queues or submit physical paperwork to open a Fixed Deposit with SBI. If you have an active savings account, you can create an FD online in less than 2 minutes:

Log into your SBI YONO App or the online portal (retail.onlinesbi.sbi).
Navigate to the 'Deposits' section and select 'Fixed Deposit (FD)'.
Click on 'Open FD', input your principal amount, and choose your preferred tenure.
Select your interest payout option (Cumulative for compound growth at maturity, or Monthly/Quarterly for active cash flow).
Authenticate using your secure profile password or OTP, and your SBI e-FD will be generated instantly with a digital receipt.

Latest FD Interest Rates Comparison (2026)

To help you maximize your interest earnings, here is a comparison of the latest Fixed Deposit rates offered by the top 5 commercial banks in India for retail deposits (under ₹2 Crore):

Bank Name	General Citizens (p.a.)	Senior Citizens (p.a.)	Special High-Yield Tenure
State Bank of India (SBI)	6.80% - 7.00%	7.30% - 7.50%	400 Days (Amrit Kalash)
HDFC Bank	7.10% - 7.25%	7.60% - 7.75%	18 Months - 21 Months
ICICI Bank	7.10% - 7.20%	7.60% - 7.75%	15 Months - 18 Months
Axis Bank	7.20% - 7.30%	7.70% - 7.85%	17 Months - 18 Months
Kotak Mahindra Bank	7.00% - 7.15%	7.50% - 7.65%	390 Days - 23 Months

*Note: Interest rates are subject to periodic changes. Please verify with the respective banks for the absolute latest rates before opening your deposit.

State Bank of India (SBI) FD Calculator