Finance
PPF Calculator Guide — Public Provident Fund Returns
Learn how PPF interest compounds annually, the 15-year lock-in and use our free PPF calculator to project tax-free maturity in India.
The Public Provident Fund (PPF) is a government-backed long-term savings scheme popular for retirement and Section 80C tax planning. Returns are tax-free under the EEE model.
How PPF interest is calculated
PPF interest is compounded annually on the lowest balance between the 5th and last day of each month. Deposits up to ₹1.5 lakh per year qualify for 80C deduction.
Each year:
- Add your annual deposit (capped at ₹1.5L in the calculator).
- Apply the notified annual rate to the balance.
- Interest is added to the balance for the next year.
15-year lock-in
PPF accounts mature after 15 years and can be extended in blocks of 5 years. Partial withdrawals are allowed from year 7 under specified rules.
Current PPF rate
The government revises PPF rates quarterly. Enter the latest rate in our calculator — it does not need to match a hard-coded value.
Project your PPF corpus
Use the PPF Calculator for year-by-year balance, total interest and maturity after any projection period.
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