PPF Calculator India

Calculate PPF maturity amount for 15 years. See how your annual investment grows tax-free with compound interest.

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What Is the Public Provident Fund (PPF)?

The Public Provident Fund (PPF) is a long-term savings scheme backed by the Government of India, introduced in 1968 to encourage small savings and provide retirement security to Indian citizens. PPF enjoys the coveted Exempt-Exempt-Exempt (EEE) tax status, meaning the amount invested qualifies for tax deduction under Section 80C, the interest earned is completely tax-free, and the maturity amount is also exempt from income tax. This triple tax benefit makes PPF one of the most tax-efficient investment instruments available in India, particularly attractive for individuals in higher tax brackets who seek guaranteed, risk-free returns.

A PPF account can be opened at any designated post office or nationalized bank in India. The minimum annual investment is ₹500 and the maximum is ₹1,50,000 per financial year. The account has a mandatory lock-in period of 15 years, after which it can be extended in blocks of 5 years indefinitely. The interest rate on PPF is set by the Government of India every quarter and is currently 7.1% per annum, compounded annually. The interest is calculated on the lowest balance between the 5th and the last day of each month, which is why investing before the 5th of every month maximizes your returns.

PPF Maturity Formula

Year-End Balance = (Previous Balance + Annual Investment) × (1 + r/100)

Where:

  • Previous Balance = Balance at the end of the previous year (or existing balance for Year 1)
  • Annual Investment = Amount invested each year (max ₹1,50,000)
  • r = PPF Interest Rate (currently 7.1%)
  • Total Invested = Annual Investment × Number of Years
  • Interest Earned = Maturity Amount − Total Invested − Existing Balance
  • Tax Saved (80C) = Annual Investment × Tax Rate (e.g. 30%)

PPF Account Rules and Features

PPF accounts come with specific rules that investors must understand. The account matures after 15 years from the end of the financial year in which the account was opened. Partial withdrawals are permitted from the 7th financial year onwards, up to 50% of the balance at the end of the 4th preceding year or the balance at the end of the preceding year, whichever is lower. Loans against the PPF balance are available from the 3rd to the 6th financial year, at an interest rate of 1% above the PPF rate. The account can be transferred between banks and post offices without affecting the tenure or interest rate.

PPF Extension After 15 Years

After the initial 15-year lock-in period, you can extend your PPF account in blocks of 5 years. You have two options: extend with contributions, where you continue investing up to ₹1,50,000 per year and continue earning interest on the growing balance; or extend without contributions, where you stop investing but the existing balance continues to earn interest at the prevailing PPF rate. The extension option must be exercised within one year of the maturity date by submitting Form H at your bank or post office. If no form is submitted, the account is automatically extended without contributions.

Example Calculations

Example 1: ₹1,50,000/year for 15 Years at 7.1%

An investor contributes the maximum ₹1,50,000 per year for the full 15-year tenure.

  • Total Invested = ₹22,50,000
  • Interest Earned = ₹18,18,209
  • Maturity Amount = ₹40,68,209
  • Annual Tax Saved (at 30%) = ₹45,000

Example 2: ₹50,000/year for 15 Years at 7.1%

A moderate investor contributes ₹50,000 per year.

  • Total Invested = ₹7,50,000
  • Interest Earned = ₹6,06,070
  • Maturity Amount = ₹13,56,070
  • Annual Tax Saved (at 30%) = ₹15,000

Example 3: ₹1,50,000/year for 25 Years (15 + 10 Extension) at 7.1%

An investor continues for 10 additional years after the initial 15-year period.

  • Total Invested = ₹37,50,000
  • Interest Earned = ₹65,58,015
  • Maturity Amount = ₹1,03,08,015
  • Crosses ₹1 crore with tax-free returns

PPF vs Other Section 80C Investments

Under Section 80C, investors can claim deductions up to ₹1.5 lakh on investments in PPF, ELSS mutual funds, NSC, tax-saving FDs, life insurance premiums, and more. PPF stands out because of its EEE status and guaranteed returns. ELSS offers potentially higher market-linked returns but with risk and a shorter 3-year lock-in. Tax-saving FDs offer fixed returns but the interest is taxable. NSC offers guaranteed returns similar to PPF but interest is taxable. For risk-averse investors seeking tax-free guaranteed returns over the long term, PPF remains the gold standard of Section 80C investments.

Tips to Maximize Your PPF Returns

To maximize your PPF returns, invest the full ₹1,50,000 as early as possible in the financial year, ideally as a lump sum before April 5th. Since PPF interest is calculated on the lowest balance between the 5th and last day of each month, investing early ensures your money earns interest for the maximum number of months. If lump-sum investment is not possible, make monthly contributions before the 5th of each month. Start your PPF account as early as possible in your career to benefit from the full power of long-term compounding over multiple 5-year extension blocks.