PPF Calculator

Calculate Public Provident Fund maturity amount and tax-free interest

Investment Details

₹500 minimum, ₹1.5 lakh maximum per financial year — the cap is statutory.

Notified quarterly by the Ministry of Finance. Enter the rate you want to model — it will not hold for 15 years.

15 years to maturity, then extendable in blocks of 5.

PPF scheme rules — set by Ministry of Finance / India Post small savings schemes. Last verified .

The ₹500 minimum and ₹1.5 lakh annual maximum, the 15-year term and 5-year extension blocks, and annual compounding on the lowest balance between the 5th and the month end. The interest rate is your input — it is notified quarterly.

Check the source

Maturity Amount

₹40,68,209

Total Deposited
₹22,50,000
Interest Earned
₹18,18,209

Tax-free at maturity — PPF is one of the few EEE instruments left.

Investment Summary

Yearly investment
₹1,50,000
Term
15 years
Interest rate
7.10% p.a.
Total deposited
₹22,50,000
Interest earned
₹18,18,209
Tax on maturity
Nil
Maturity amount
₹40,68,209

Composition

Deposits₹22,50,000 · 55.3%
Interest₹18,18,209 · 44.7%

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How this is calculated

Formula

closingₙ = (closingₙ₋₁ + deposit) × (1 + r)

closingₙ
= balance at the end of year n
deposit
= that year’s contribution, capped at ₹1.5 lakh
r
= annual rate as a decimal

With your numbers

  1. 1Rate as a decimalr = rate ÷ 1007.10% ÷ 100 = 0.0710
  2. 2Year 1(0 + deposit) × (1 + r)(₹0 + ₹1,50,000) × 1.0710 = ₹1,60,650
  3. 3Year 2(closing₁ + deposit) × (1 + r)(₹1,60,650 + ₹1,50,000) × 1.0710 = ₹3,32,706
  4. 4…repeated to year 15maturity = closing on the final year₹22,50,000 deposited becomes ₹40,68,209, of which ₹18,18,209 is interest
Maturity amount₹40,68,209
  • The model assumes the full year’s deposit is in place before interest is reckoned. In practice interest is credited on the lowest balance between the 5th and the month end, so depositing in early April rather than late March is worth a real amount over 15 years.
  • A single rate held for the whole term is a scenario. The rate is notified quarterly and has moved several times over any 15-year window.
  • None of the maturity amount is taxable, and none of the interest is. That is what makes the headline rate hard to compare against a taxable instrument — a 7.1% tax-free return beats a 9%+ taxable one at the 30% slab.

What is PPF?

The Public Provident Fund is a government-backed 15-year savings scheme with a government-notified rate, open to any resident individual.

It is the safest long-horizon instrument available to a retail saver in India, and the only common one where the return is entirely untaxed.

Key features

  • • EEE: deposit deductible, interest tax-free, maturity tax-free
  • • ₹500 minimum and ₹1.5 lakh maximum a year
  • • 15-year lock-in, extendable in 5-year blocks
  • • Partial withdrawal from year 7; loan against balance from year 3 to 6
  • • Balance is protected from attachment by a court decree

Frequently Asked Questions

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