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 once a year on your balance. If your yearly deposit goes in at the start of the financial year, the maturity value follows this annuity-due formula (regular payments made at the start of each period):
FV = P × [((1 + r)ⁿ − 1) / r] × (1 + r)
Here P is your yearly deposit. r is the annual interest rate (as a decimal). n is the tenure in years. In practice, PPF interest is credited once a year, but it is worked out each month on the lowest balance between the 5th and the last day of the month. That is exactly why depositing before 5 April matters every year.
Worked example
Deposit the maximum ₹1.5 lakh every year for 15 years at 7.1% per year:
FV = 1,50,000 × [((1.071)¹⁵ − 1) / 0.071] × 1.071 ≈ ₹40.7 lakh
You put in ₹22.5 lakh, so the tax-free interest earned is about ₹18.2 lakh. Keep the same deposit going for 20 years and the corpus grows to roughly ₹66 lakh — those 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 a year get the 80C deduction (old regime), the interest is tax-free, and the maturity payout is tax-free. No other fixed-income product in India offers all three.
- 15-year lock-in, with some relaxations. You can take one partial withdrawal a year from the 7th financial year, borrow against it between the 3rd and 6th years, and close it early after 5 years for medical treatment or higher education (with a 1% cut in the interest rate).
- Minimum yearly deposit. Put in at least ₹500 every financial year, or the account becomes “discontinued”. Reviving it costs ₹50 per missed year, and you lose the loan and withdrawal options until you do.
- The rate can change. The government revises the 7.1% rate every quarter, and it can fall — it was above 8% a decade ago. Try a lower rate (say 6.5%) to stress-test your plan.
- One account per person. You cannot hold two PPF accounts. If a second one is found, its balance is merged and the excess interest is taken back.
PPF Calculator FAQs
What is the current PPF interest rate?
The PPF interest rate is 7.1% per year, verified through 30 September 2026. The government revises small-savings rates every quarter, so the rate can change — this calculator lets you change 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. You can take one partial withdrawal a year from the 7th financial year, borrow between the 3rd and 6th years, and close the account early after 5 years for specific reasons like medical treatment or higher education (with a 1% cut in the interest rate).
What are the tax benefits of PPF?
PPF has EEE (exempt-exempt-exempt) status. Deposits up to ₹1.5 lakh a 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. If you miss it, the account becomes “discontinued”. Reviving it costs ₹50 per missed year, and you lose the loan and partial-withdrawal options until you revive it.
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 just 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 for each month is worked out on the lowest balance between the 5th and the end of that month. If your yearly deposit lands before 5 April, it earns interest for all 12 months. Deposit later, and you lose those months of interest.