PPF Calculator
Calculate your Public Provident Fund maturity corpus over 15 years.
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PPF Calculator
Use the formula and worked example below to calculate manually.
Overview
A PPF (Public Provident Fund) calculator helps you estimate your maturity corpus after 15 years based on your annual contributions and the current PPF interest rate. PPF is a government-backed, tax-exempt savings scheme.
How to use this calculator
- Enter your yearly contribution (maximum ₹1.5 lakh per financial year).
- The current PPF interest rate is pre-filled (revise if the government changes it).
- Set the number of years (minimum 15, extendable in 5-year blocks).
- The calculator displays the total investment, total interest, and maturity amount.
Understanding the inputs & results
Yearly contribution
The amount you invest into PPF every financial year. Maximum allowed is ₹1.5 lakh.
PPF interest rate
The government-declared annual interest rate applied to your PPF balance. Currently around 7.1% p.a.
Tenure
PPF matures after 15 years from account opening. You can extend in 5-year blocks.
Maturity amount
The total corpus you receive at maturity — principal contributions plus compounded interest.
The formula
PPF maturity (annual compounding, contribution at year start)
FV = Σ [ P × (1 + r)^(n - t + 1) ] for t = 1 to n
Each year's contribution P earns interest at rate r for the remaining years. Interest is compounded annually and is tax-free under Section 10 of the Income Tax Act.
Worked example
₹1,50,000 per year for 15 years at 7.1% p.a.
- Year 1 contribution: 1,50,000 × (1.071)^15 ≈ ₹4,24,048.
- Sum all 15 contributions' future values.
- Approximate maturity corpus ≈ ₹40.68 lakh.
- Total invested = ₹22.5 lakh. Interest earned ≈ ₹18.18 lakh.
✓ Approximately ₹40.7 lakh at maturity on ₹22.5 lakh invested — all tax-free.
Frequently asked questions
Tips & things to know
- Invest before the 5th of each month to earn interest for that month.
- Maximise the annual contribution (₹1.5 lakh) to get the full Section 80C deduction.
PPF interest rates are set by the Government of India quarterly. Verify the current rate before planning. This calculator is for estimation only.