FD Calculator – Fixed Deposit Returns Estimator

A fixed deposit (FD) is a financial instrument provided by banks and NBFCs where you can deposit a lump sum amount for a specific period at a predetermined interest rate. FDs offer higher interest rates than regular savings accounts and are considered one of the safest investment options with guaranteed returns.

FD interest is calculated using the compound interest formula: A = P(1 + r/n)^(nt), where A is the maturity amount, P is the principal amount, r is the annual interest rate (in decimal), n is the compounding frequency per year (e.g., 4 for quarterly compounding), and t is the time period in years.

Compounding frequency refers to how often the interest is calculated and added to your principal amount. Common frequencies include yearly, half-yearly, quarterly, and monthly. Higher compounding frequency (e.g., monthly instead of yearly) results in slightly higher returns as the interest is calculated and added to your principal more frequently, allowing you to earn interest on interest more often.

Yes, most banks and financial institutions offer an additional interest rate (typically 0.25% to 0.5% higher) on fixed deposits for senior citizens (usually those aged 60 years and above). This is to provide better returns to retired individuals who often rely on interest income for their expenses.

Premature withdrawal of an FD typically results in a penalty in the form of a lower interest rate than originally promised. The penalty varies across banks but is usually 0.5% to 1% less than the applicable rate for the period the deposit was held. Some banks may also charge a fixed penalty amount for premature withdrawals.

Interest earned on FDs is fully taxable as per your income tax slab rate. TDS (Tax Deducted at Source) is applicable at 10% if the interest earned in a financial year exceeds ₹40,000 (₹50,000 for senior citizens). If your total income is below the taxable limit, you can submit Form 15G/15H to avoid TDS deduction.

In cumulative FDs, the interest is compounded and paid along with the principal at maturity. In non-cumulative FDs, the interest is paid out at regular intervals (monthly, quarterly, etc.) as per your choice. Cumulative FDs are suitable for wealth creation, while non-cumulative FDs are ideal for those who need regular income from their investments.