PPF Calculator – Estimate Your Maturity Corpus and Interest on a PPF Account

PPF enjoys Exempt-Exempt-Exempt (EEE) status, the only investment category where contributions, interest, and maturity proceeds are all fully exempt from income tax. This makes its effective post-tax return significantly higher than other fixed-income instruments with the same stated rate.\n\nPPF Maturity Formula:\nF = P × [((1 + i)^n – 1) ÷ i] × (1 + i)\nWhere:\nF = Maturity amount\nP = Annual deposit amount\ni = Annual interest rate ÷ 100\nn = Investment tenure in years\n\nExample:\nAnnual deposit: ₹1,00,000 | Rate: 7.1% p.a. | Tenure: 15 years\nTotal invested = ₹1,00,000 × 15 = ₹15,00,000\nMaturity corpus ≈ ₹27,12,000 (approx.)\nTotal interest earned ≈ ₹12,12,000, entirely tax-free\n\nKey PPF features to understand:\n• Lock-in: 15 years from the date of account opening. Premature closure is allowed in limited circumstances, serious illness or higher education, after 5 years, with a 1% interest deduction penalty.\n• Partial withdrawal: Allowed from the 7th year onwards, up to 50% of the balance at the end of the 4th year preceding the withdrawal year.\n• Loan facility: A loan against PPF is available from the 3rd to 6th year, at a nominal 1% above the PPF interest rate.\n• Extension: After 15 years, the account can be extended in 5-year blocks. You can choose to continue contributing or retain the balance without further deposits, interest continues to accrue either way.\n• 80C deduction: PPF contributions up to ₹1.5 lakh qualify for deduction under Section 80C of the Income Tax Act, only under the old tax regime.\n\nThe PPF interest rate is announced quarterly by the Ministry of Finance and is subject to change. The calculator uses the rate you enter, always use the current rate confirmed by your bank or post office at the time of calculation.