PPF Calculator — Estimate Your Public Provident Fund Maturity
Project your PPF corpus at maturity. Enter your yearly deposit, the current interest rate and the tenure to see the tax-free maturity value, total deposited and interest earned.
Maturity value (tax-free)
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Total deposited
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Interest earned
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Year-wise growth
Deposited vs interest earned, year by year.
How PPF interest is calculated
PPF interest is compounded annually on the balance. Assuming your yearly deposit is made at the start of the financial year, the maturity value is the future value of an annuity-due:
FV = P × [((1 + r)ⁿ − 1) / r] × (1 + r)
Here P is the yearly deposit, r the annual interest rate (as a decimal), and n the tenure in years. In practice, PPF interest is credited yearly but computed monthly on the lowest balance between the 5th and the end of each month — which is why depositing before 5 April each year matters.
Worked example
Deposit the maximum ₹1.5 lakh every year for 15 years at 7.1% per annum:
FV = 1,50,000 × [((1.071)¹⁵ − 1) / 0.071] × 1.071 ≈ ₹40.7 lakh
You deposited ₹22.5 lakh, so the tax-free interest earned is about ₹18.2 lakh. Extend the same deposit to 20 years and the corpus grows to roughly ₹66 lakh — the last five years add enormous value through compounding.
Key PPF rules to know
- EEE tax status. PPF is exempt-exempt-exempt: deposits up to ₹1.5 lakh/year get 80C deduction (old regime), interest is tax-free, and maturity is tax-free. No other fixed-income product in India matches this.
- 15-year lock-in with relaxations. One partial withdrawal per year from the 7th financial year, loans between the 3rd and 6th years, and premature closure after 5 years for medical treatment or higher education (with a 1% interest reduction).
- Minimum discipline. Deposit at least ₹500 every financial year or the account becomes discontinued (₹50/year penalty to revive, and loan/withdrawal facilities are lost until revived).
- Rate is not fixed. The 7.1% rate is revised quarterly by the government and can fall — it was 8%+ a decade ago. Model a lower rate (say 6.5%) to stress-test your plan.
- One account per person. You cannot hold two PPF accounts; a second account's balance is merged and excess interest is reversed.
PPF Calculator FAQs
What is the current PPF interest rate?
The PPF interest rate is 7.1% per annum, verified through 30 September 2026. The government revises small-savings scheme rates every quarter, so the rate can change — this calculator lets you edit the rate to model different scenarios.
Can I withdraw PPF money before 15 years?
Full withdrawal is allowed only at maturity after 15 years, but there are relaxations: one partial withdrawal per year from the 7th financial year, loans between the 3rd and 6th years, and premature closure after 5 years for specific reasons like medical treatment or higher education (with a 1% interest penalty).
What are the tax benefits of PPF?
PPF enjoys EEE (exempt-exempt-exempt) status: deposits up to ₹1.5 lakh per year qualify for deduction under Section 80C (old regime), the interest earned is completely tax-free, and the maturity amount is tax-free too.
What happens if I miss a PPF deposit in a year?
You must deposit at least ₹500 every financial year. Missing it makes the account "discontinued" — you pay a ₹50 penalty per missed year to revive it, and you lose the loan and partial-withdrawal facilities until it is revived.
Can I extend my PPF account after 15 years?
Yes. After maturity you can extend in blocks of 5 years, either with fresh deposits (which keeps the 80C deduction going) or without (the balance keeps earning tax-free interest). You can also simply withdraw the full amount tax-free.
Why does depositing early in April matter for PPF?
PPF interest is calculated on the lowest balance between the 5th and the end of each month. Depositing your yearly amount before 5 April ensures it earns interest for all 12 months; depositing later in the year loses months of interest.