How FD maturity is calculated
A = P × (1 + r/n)^(n×t), where P is the deposit, r the annual rate, n the compounding frequency per year and t the tenure in years. Most Indian banks compound quarterly.
FAQ
Is FD interest taxable?
Yes — FD interest is fully taxable at your slab rate, and banks deduct 10% TDS if interest exceeds ₹50,000 a year (₹1L for seniors). Seniors can claim up to ₹50,000 deduction under 80TTB in the old regime — see our Income Tax Calculator.
Cumulative vs payout FDs?
This calculator models cumulative FDs where interest reinvests. Monthly/quarterly payout FDs pay simple interest out, so the maturity value stays at the principal.