₹1 lakh a year for 15 years
₹15 lakh deposited at 7.1% grows to ₹27.12 lakh. Interest is ₹12.12 lakh of that, and all of it is tax-free.
PPF calculator
1.5 lakh
%
7.1% for Oct–Dec 2026.
Maturity value
₹40,68,209
₹18,18,209 of that is tax-free interest.
- Deposited
- ₹22,50,000
- Interest
- ₹18,18,209
Year-by-year table
| Year | Interest | Balance |
|---|---|---|
| 1 | ₹10,650.00 | ₹1,60,650.00 |
| 2 | ₹22,056.15 | ₹3,32,706.15 |
| 3 | ₹34,272.14 | ₹5,16,978.29 |
| 4 | ₹47,355.46 | ₹7,14,333.75 |
| 5 | ₹61,367.70 | ₹9,25,701.44 |
| 6 | ₹76,374.80 | ₹11,52,076.24 |
| 7 | ₹92,447.41 | ₹13,94,523.66 |
| 8 | ₹1,09,661.18 | ₹16,54,184.84 |
| 9 | ₹1,28,097.12 | ₹19,32,281.96 |
| 10 | ₹1,47,842.02 | ₹22,30,123.98 |
| 11 | ₹1,68,988.80 | ₹25,49,112.78 |
| 12 | ₹1,91,637.01 | ₹28,90,749.79 |
| 13 | ₹2,15,893.23 | ₹32,56,643.02 |
| 14 | ₹2,41,871.65 | ₹36,48,514.68 |
| 15 | ₹2,69,694.54 | ₹40,68,209.22 |
PPF rules that change the maturity amount
The Public Provident Fund is a 15-year government savings scheme run through post offices and authorised banks. You can deposit ₹500 to ₹1,50,000 in a financial year, in one go or in parts. The ₹1.5 lakh limit covers your own account and any PPF account you run for a minor child. The government sets the rate every quarter. It has stayed at 7.1% since April 2020, and that is the rate for October to December 2026.
Interest is worked out each month on the lowest balance between the 5th and the end of the month, and credited once a year on 31 March. That is why the tool assumes you deposit by 5 April: one lump sum early in the year earns about a year's more interest over the 15 years than the same money paid in March.
Loans are allowed from the 3rd to the 6th financial year, up to 25% of the balance at the end of the second year before you apply. Partial withdrawals are allowed every year from the 7th year. After 15 years you can close the account, or extend it in 5-year blocks with or without new deposits. To compare PPF with taxable choices, see the FD calculator and the compound interest calculator. For a daughter's savings, also look at Sukanya Samriddhi, which pays a higher rate.
Sources
What this calculator does not account for
- Changes to the PPF rate, which the government resets every quarter.
- Deposits made after the 5th of a month, which earn no interest for that month.
How this is calculated
Formula: Annual deposit, annual compounding
balance(n) =(balance(n−1) + deposit) × (1 + r)What the symbols mean
- deposit₹500 to ₹1,50,000 a financial year.
- rThe PPF rate, set each quarter by the government. 7.1% for Oct–Dec 2026.
Good to know
- PPF lasts 15 years and can be extended in 5-year blocks.
- Deposits qualify under section 80C in the old regime; interest and maturity are tax-free.
Read the full methodologyFound an error? Contact us
Worked examples
Each example is worked out by the same code as the calculator above.
Extending after maturity
₹1.5 lakh a year gives ₹40.68 lakh at 15 years. Leave it for one 5-year block with no deposits and it grows to ₹57.33 lakh. Keep depositing ₹1.5 lakh and it reaches ₹66.58 lakh after 20 years.
Embed this calculator
The frame shows the tool only.
<iframe src="/embed/ppf" title="PPF" width="100%" height="720" style="border:0;max-width:42rem" loading="lazy"></iframe>Questions
What is the PPF interest rate now?
7.1% a year for October–December 2026, unchanged since 2020. The rate is reviewed every quarter.
How much will ₹1.5 lakh a year become?
About ₹40.7 lakh after 15 years at 7.1%, on ₹22.5 lakh deposited.
Why deposit before the 5th?
Interest is calculated on the lowest balance between the 5th and the end of each month. A deposit on the 6th misses that month.
Can I withdraw from PPF before 15 years?
Partial withdrawals are allowed every year from the 7th financial year. Early closure after 5 years is allowed only for reasons such as serious illness or higher education, with a 1% interest cut.
What happens if I miss a year's deposit?
The account becomes discontinued. You can revive it by paying ₹500 for each missed year plus a ₹50 penalty for each year.
Can I extend PPF after 15 years?
Yes. Apply within a year of maturity to extend in 5-year blocks with deposits. If you do nothing, the account continues without new deposits and keeps earning interest.