Calculate PPF maturity corpus
100% tax-free at maturity. Adjust and see instantly.
Tax-Free Maturity
₹40,68,209
completely tax-free after 15 years
Total Invested
₹22,50,000
Interest Earned
₹18,18,209
Rate p.a.
7.1%
Yearly Deposit
₹1,50,000
Invested vs Interest
PPF is EEE — contributions, interest, and maturity are all tax-free.
How much will your PPF
build tax-free?
Enter your yearly PPF investment, interest rate, and period to instantly estimate your PPF maturity corpus and total tax-free interest earned.
Step by step
How to use the PPF Calculator
Enter yearly investment
Type how much you invest in PPF per year. Maximum allowed is ₹1,50,000 per year.
Set interest rate
Enter the current PPF rate. The government sets this quarterly — currently around 7.1%.
Choose years
PPF has a 15-year lock-in but you can extend in 5-year blocks. Enter your total investment period.
See tax-free corpus
Instantly see your maturity amount, interest earned, and year-by-year growth.
Why use this calculator?
Retirement savings
PPF is one of India's most trusted retirement instruments because it's government-backed, completely tax-free at maturity, and compounds steadily.
Child's education
Open a PPF account for your child and invest systematically. The 15-year maturity aligns perfectly with college admission timelines.
Tax saving under 80C
PPF investments up to ₹1.5L qualify for Section 80C deduction. Use the calculator to see both the maturity benefit and the annual tax saved.
How PPF maturity is calculated — formula and example
Public Provident Fund (PPF) is unique among Indian savings instruments because it offers the EEE (Exempt-Exempt-Exempt) tax treatment — your contribution gets Section 80C deduction, the annual interest is completely tax-free, and the full maturity amount is tax-free. No other government-backed instrument offers this combination, which is why PPF is a core holding in most long-term financial plans.
The 15-year lock-in that many people see as a drawback is actually a structural advantage. It forces a long investment horizon, which is exactly what compounding needs to produce significant wealth. The rule of 72 at 7.1% means your money doubles roughly every 10.1 years — meaning a 15-year PPF account will have grown your original deposits by 2.5× or more, entirely tax-free.
For working professionals, the practical approach is to invest the full ₹1,50,000 per year (the 80C limit) in PPF as early in the financial year as possible, ideally by April 5. Interest on PPF is calculated on the minimum balance between the 5th and the last day of each month. Investing before the 5th of April ensures your full contribution earns interest for the entire first year, maximising the compounding effect over 15 years.
Formula
Balanceₙ₊¹ = (Balanceₙ + Annual Contribution) × (1 + r/100)
The PPF balance compounds annually. Each year, your fresh contribution is added to the existing balance, and the whole amount earns the declared interest rate for that year. This is why investing early in the financial year (April) gives slightly better returns than investing in March — your money earns interest for the full year.
Worked example
If you invest ₹1,50,000 per year for 15 years at 7.1%: Year 1 balance = 1,50,000 × 1.071 = ₹1,60,650. Year 2 balance = (1,60,650 + 1,50,000) × 1.071 = ₹3,32,956. Continuing this for 15 years gives a maturity corpus of approximately ₹40.7 lakh on a total investment of ₹22.5 lakh — over ₹18 lakh in tax-free interest.
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