PPF Calculator
The Public Provident Fund (PPF) is a government-backed, long-term savings scheme that offers a guaranteed, tax-free return with a 15-year base term. Use this PPF calculator to project your maturity value and total interest — enter your yearly investment, the PPF interest rate and tenure to see how your tax-free corpus grows through annual compounding.
- Invested
- ₹22,50,000
- Interest Earned
- ₹18,18,209
Maturity Value
₹40,68,209
- Invested55%
- Interest Earned45%
Formula
M = P × [((1 + r)ⁿ − 1) ÷ r] × (1 + r)
- M
- Maturity value at the end of the term.
- P
- Yearly contribution (PPF allows up to ₹1.5 lakh per year).
- r
- Annual PPF interest rate ÷ 100 (set by the government).
- n
- Number of years invested (minimum 15).
PPF interest compounds annually and the maturity amount is fully tax-free. This calculator assumes a fixed yearly contribution; the government revises the PPF rate periodically.
Worked example
Suppose you invest ₹1,50,000 every year in your PPF account at an interest rate of 7.1% per annum for the full 15-year term.
- Yearly Investment (P)
- ₹1,50,000
- Interest Rate (p.a.)
- 7.1%
- Tenure
- 15 years
You invest ₹22,50,000 in total over 15 years. At 7.1% the account matures to about ₹40,68,209 — meaning roughly ₹18,18,209 of tax-free interest on top of your contributions.
Year-by-year growth
Based on the default PPF Calculator values above. The final year matches the maturity value shown by the calculator — change the inputs to project your own plan.
- Total invested
- ₹22,50,000
- Interest earned
- ₹18,18,209
- Maturity value
- ₹40,68,209
- Value / invested
- 1.81×
Over 15 years, your ₹22,50,000 grows to about ₹40,68,209 — roughly 1.81× what you put in, thanks to compounding.
| Year | Invested | Interest earned | Maturity value |
|---|---|---|---|
| 1 | ₹1,50,000 | ₹10,650 | ₹1.61 Lakh |
| 2 | ₹3,00,000 | ₹32,706 | ₹3.33 Lakh |
| 3 | ₹4,50,000 | ₹66,978 | ₹5.17 Lakh |
| 4 | ₹6,00,000 | ₹1,14,334 | ₹7.14 Lakh |
| 5 | ₹7,50,000 | ₹1,75,701 | ₹9.26 Lakh |
| 6 | ₹9,00,000 | ₹2,52,076 | ₹11.52 Lakh |
| 7 | ₹10,50,000 | ₹3,44,524 | ₹13.95 Lakh |
| 8 | ₹12,00,000 | ₹4,54,185 | ₹16.54 Lakh |
| 9 | ₹13,50,000 | ₹5,82,282 | ₹19.32 Lakh |
| 10 | ₹15,00,000 | ₹7,30,124 | ₹22.30 Lakh |
| 11 | ₹16,50,000 | ₹8,99,113 | ₹25.49 Lakh |
| 12 | ₹18,00,000 | ₹10,90,750 | ₹28.91 Lakh |
| 13 | ₹19,50,000 | ₹13,06,643 | ₹32.57 Lakh |
| 14 | ₹21,00,000 | ₹15,48,515 | ₹36.49 Lakh |
| 15 | ₹22,50,000 | ₹18,18,209 | ₹40.68 Lakh |
How the PPF calculator works
Adjust the yearly investment, interest rate and tenure sliders to see your maturity value and tax-free interest update in real time, with a breakdown of contributions versus interest. Because PPF compounds annually over a long term, the interest portion becomes a large share of the final corpus — the chart makes this clear.
Why choose PPF
PPF is a cornerstone of conservative, long-term financial planning in India. Its returns are guaranteed and tax-free, and the government backing makes it very safe. The trade-off is the 15-year lock-in, which is also its strength — it enforces disciplined, uninterrupted compounding. Many investors pair PPF with market-linked options like a SIP to balance safety and growth.
Tips for PPF investors
- Invest early in the financial year so each contribution earns a full year of interest.
- Contribute the maximum (₹1.5 lakh) if you can, to build the largest tax-free corpus.
- Extend after 15 years in 5-year blocks to keep the compounding going.
- Use PPF for the stable portion of a long-term plan, alongside growth assets.
Frequently asked questions
How is PPF maturity calculated?
PPF maturity uses annual compounding on your yearly contributions: M = P × [((1+r)ⁿ − 1) ÷ r] × (1+r), where P is the yearly investment, r is the annual rate and n is the number of years. This calculator applies it instantly as you change the inputs.
What is the PPF interest rate?
The PPF interest rate is set by the government and reviewed periodically (it has been around 7.1% recently). Because it can change, this calculator lets you enter the current rate so your projection stays accurate.
Is PPF tax-free?
PPF enjoys EEE (exempt-exempt-exempt) status — your contributions are eligible for deduction, the interest earned is tax-free, and the maturity amount is tax-free. This makes it one of the most tax-efficient savings options in India.
What is the PPF investment limit and tenure?
You can invest between ₹500 and ₹1,50,000 per financial year. The base tenure is 15 years, after which you can extend in blocks of 5 years. Use the tenure slider to see how extending the term increases your corpus.
Can I withdraw from PPF before 15 years?
PPF allows partial withdrawals from the 7th year onwards, subject to limits, and loans against the balance in the early years. Full withdrawal is generally available at maturity, which is what this calculator projects.