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Finance
Project the maturity value of a Public Provident Fund (PPF) account based on your annual contribution, the government-notified interest rate, and the statutory tenure.
PPF pays interest once a year on the balance, compounded annually: balance_next = balance × (1 + annual rate) + annual contribution. Contributions are capped at ₹1,50,000 per year, in line with the real statutory ceiling that also makes PPF eligible for Section 80C tax deduction — this calculator's contribution range respects that limit. The interest rate used (7.1% by default) is the rate notified by the government for the quarter ending September 2026; PPF rates are revised every quarter, not fixed for the account's life, so treat any rate you enter as a snapshot rather than a permanent guarantee. Assumptions: the chosen rate is held constant for the whole tenure (a simplification — the real rate moves quarterly), contributions are modeled as a single annual deposit compounding once a year (the real scheme allows up to 12 deposits a year with interest computed monthly on the lowest balance between the 5th and end of each month, which this annual model approximates), and the 15-year default tenure reflects PPF's statutory lock-in — extendable after maturity in blocks of 5 years, which this calculator does not itself model beyond the years you enter.
No. The government notifies the PPF rate every quarter, and it can go up or down. This calculator uses one rate as a snapshot assumption across the whole tenure for simplicity — your real account will earn whatever rate is notified each quarter it's open.
₹1,50,000 per financial year, which is also the ceiling for the Section 80C deduction PPF qualifies for. Contributing more than this in a year doesn't earn extra interest on the excess.
PPF has a statutory 15-year lock-in, with limited partial withdrawals allowed from the 7th year onward. After 15 years, the account can be extended in blocks of 5 years. This calculator projects growth over the tenure you set and doesn't model partial withdrawals.