See exactly how much your PPF account will grow to
Enter your yearly deposit, the current interest rate, and how many years you plan to invest — the PPF calculator shows your total maturity value, the interest you will earn, and the year-by-year growth of your account. Everything is calculated instantly right here in your browser; nothing leaves your device.
How to use this PPF calculator
- Yearly investment: Enter the amount you plan to deposit each year (minimum ₹500, maximum ₹1.5 lakh).
- Interest rate: The current PPF rate for FY 2025-26 is 7.1% per annum, already filled in. Change it if you want to model a different scenario.
- Investment period: Start with 15 years (the mandatory lock-in). You can extend in 5-year blocks — enter 20 or 25 years to see how much more you can earn by staying invested.
- Hit Calculate — you will instantly see your maturity amount, total interest earned, and total amount deposited.
Worked example — PPF maturity value at current rates
Say you deposit ₹1,50,000 every year (the maximum allowed) for 15 years at 7.1%.
- Total invested: ₹22,50,000 (₹1.5 lakh × 15 years)
- Interest earned: ~₹18,18,209
- Maturity value: ~₹40,68,209
That means your money almost doubles over 15 years — entirely tax-free. Not a single rupee of interest is taxed, and you also save tax on your deposits every year under Section 80C.
If you extend by 5 more years (total 20 years), still depositing ₹1.5 lakh/year, the corpus grows to roughly ₹66 lakh — showing how powerfully compounding rewards patience.
Quick PPF reference — key rules for FY 2025-26
| Rule | Detail |
|---|---|
| Minimum deposit per year | ₹500 |
| Maximum deposit per year | ₹1,50,000 |
| Interest rate (FY 2025-26) | 7.1% p.a., compounded annually |
| Lock-in period | 15 years (mandatory) |
| Extension blocks | 5 years at a time, unlimited times |
| Tax status | EEE — investment, interest, and maturity all tax-exempt |
| 80C deduction | Up to ₹1,50,000 per financial year |
| Partial withdrawal | Allowed from year 7 onwards (up to 50% of balance) |
| Loan facility | Available between years 3 and 6 |
Is PPF interest tax-free? — EEE explained in plain words
PPF enjoys EEE (Exempt-Exempt-Exempt) tax treatment — the only triple-tax-free savings scheme available to individuals in India.
- First E: Your yearly deposit is deductible under Section 80C (up to ₹1.5 lakh) — saving you income tax now.
- Second E: The interest credited every year is completely tax-free.
- Third E: The entire maturity amount you withdraw at the end is tax-free too.
Note: the Section 80C deduction is available only under the old tax regime. If you have opted for the new tax regime, you still earn tax-free interest and a tax-free maturity, but you do not get the 80C deduction on your deposits.
How PPF maturity value is calculated
The government credits interest on the minimum balance between the 5th and the last day of each month. To earn full interest for a month, deposit before the 5th. The formula used to project the final corpus is:
F = P × [((1 + r)^n - 1) / r] × (1 + r)
Where:
F = Maturity value
P = Yearly deposit amount
r = Annual interest rate (e.g., 0.071 for 7.1%)
n = Number of yearsThis is the standard future value of an annuity due formula — it assumes you deposit at the start of each year, which is also the best practice (deposit before 5th April every year to maximise interest).
The calculator above uses this formula with your inputs to show the maturity amount, total deposits, and total interest earned side by side.
PPF rules and limits to keep in mind (FY 2025-26)
- One account per person: You can hold only one PPF account in your own name. A minor child's account can be opened by a parent/guardian, but both accounts together cannot exceed ₹1.5 lakh per year in deposits.
- Deposits in instalments: You can deposit in up to 12 instalments per year. Any number of instalments is fine as long as the total stays within ₹1.5 lakh.
- Premature closure: Allowed only after 5 complete years, and only for specific reasons (serious illness, higher education). A 1% penalty on interest applies.
- NRI restriction: Once an account holder becomes an NRI, they cannot extend the account after 15 years. They can continue to hold the account until maturity but cannot make fresh deposits.
- Interest rate is not guaranteed forever: The government reviews the PPF rate every quarter. The calculator lets you model different rates so you can plan for both optimistic and conservative scenarios.
Source: India Post and the Income Tax Department.
Practical tips to get the most from your PPF
- Deposit before 5th April every year — you get interest for the full month of April instead of losing a month's compounding.
- Max out every year if you can — the difference between depositing ₹50,000/year and ₹1,50,000/year at 7.1% over 15 years is roughly ₹27 lakh in extra corpus.
- Extend rather than withdraw — you can extend the account in 5-year blocks after 15 years, with or without fresh deposits. Keeping the corpus invested tax-free while adding more can significantly increase the final amount.
- Do not miss a year — if you fail to deposit even ₹500 in any financial year, your account becomes inactive. You must pay a ₹50 penalty per missed year plus the minimum deposit to reactivate it.
- Use lump-sum early in the year — a single ₹1.5 lakh deposit in April beats twelve smaller monthly deposits in total interest earned that year.
Every rupee you invest in PPF today grows in a completely tax-free environment — use the calculator above to find the right yearly amount that fits your savings goal.