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Fixed Deposit Calculator — Maturity Value and Interest

Work out what a fixed deposit matures to, with quarterly compounding and TDS accounted for.

A fixed deposit maturity value is principal × (1 + r/n)^(n×t), where n is the number of compounding periods a year — quarterly for most Indian banks. ₹1,00,000 at 7.1% for five years matures to about ₹1,42,300. The effective yield is higher than the quoted rate because interest compounds four times a year rather than once.

Runs in your browser
Formula
A = P(1 + r/n)^(nt) — quarterly compounding is the Indian bank default
Tax
FD interest is taxed at your slab rate, not at a flat capital gains rate
Privacy
Runs entirely in your browser — nothing is uploaded
Cost
Free, unlimited, no sign-up

Frequently asked questions

Why is my maturity value higher than principal plus simple interest?

Because interest compounds. At 7.1% quarterly, each quarter's interest earns interest itself, so the effective annual yield is about 7.29% rather than 7.1%. Over five years on ₹1,00,000 that difference is roughly ₹7,000.

How is TDS deducted on a fixed deposit?

Banks deduct 10% TDS once interest crosses ₹40,000 in a financial year — ₹50,000 for senior citizens — but TDS is not the final tax. FD interest is added to your income and taxed at your slab, so someone in the 30% bracket owes another 20% at filing. Setting your slab above shows the real post-tax figure.

Is a fixed deposit better than a recurring deposit?

For the same rate and term, a lump-sum FD earns more, because the whole amount is invested from day one while an RD builds up monthly. An RD wins when you do not have the lump sum — comparing them on returns alone misses that they answer different questions.

How to use the fd calculator

  1. 1Set the deposit amount.
  2. 2Set the interest rate.
  3. 3Set the years.
  4. 4Set the additional months.
  5. 5Choose the compounding.
  6. 6Set the your income tax slab.
  7. 7Choose the currency.
  8. 8The result appears immediately — copy or download it.

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