HomeSavings & investing
PPF calculator
See what a Public Provident Fund account grows to, year by year.
Quick answer
PPF is a government savings scheme with a 15-year term and interest credited every year. Formula: Each year, deposit made on or before 5 April: balance = (balance + deposit) × (1 + rate ÷ 100). ₹1,50,000 a year for 15 years at 7.1%, deposited on or before 5 April each year, grows to ₹40,68,209.
Read the guide: How to calculate PPF maturity, with worked examples
Maturity value
₹40,68,209
- Amount invested
- ₹22,50,000
- Interest earned
- ₹18,18,209
At 7.1% a year, with interest credited at the end of each year. The National Savings Institute states that the interest is free from income tax. The Government can change the rate every quarter, and this uses the rate you enter for every year.
Year-by-year balance
| Year | Deposited | Interest | Balance |
|---|---|---|---|
| 1 | ₹1,50,000 | ₹10,650 | ₹1,60,650 |
| 2 | ₹1,50,000 | ₹22,056 | ₹3,32,706 |
| 3 | ₹1,50,000 | ₹34,272 | ₹5,16,978 |
| 4 | ₹1,50,000 | ₹47,355 | ₹7,14,334 |
| 5 | ₹1,50,000 | ₹61,368 | ₹9,25,701 |
| 6 | ₹1,50,000 | ₹76,375 | ₹11,52,076 |
| 7 | ₹1,50,000 | ₹92,447 | ₹13,94,524 |
| 8 | ₹1,50,000 | ₹1,09,661 | ₹16,54,185 |
| 9 | ₹1,50,000 | ₹1,28,097 | ₹19,32,282 |
| 10 | ₹1,50,000 | ₹1,47,842 | ₹22,30,124 |
| 11 | ₹1,50,000 | ₹1,68,989 | ₹25,49,113 |
| 12 | ₹1,50,000 | ₹1,91,637 | ₹28,90,750 |
| 13 | ₹1,50,000 | ₹2,15,893 | ₹32,56,643 |
| 14 | ₹1,50,000 | ₹2,41,872 | ₹36,48,515 |
| 15 | ₹1,50,000 | ₹2,69,695 | ₹40,68,209 |
Rules as of 2026-11-14: PPF rules and the 7.1% rate shown by the National Savings Institute (the Government reviews the rate every quarter). Sources: National Savings Institute: Public Provident Fund account (limits, term, extension), National Savings Institute: PPF interest rates since 1968 (7.1% from 1 April 2020), Public Provident Fund Scheme, 2019 (paragraph 7: how interest is earned and credited).
How is PPF maturity calculated?
A Public Provident Fund is a government savings account with a 15-year term. You can put in ₹500 to ₹1,50,000 in a financial year, and interest is credited to the account at the end of each year and then earns interest itself.
The interest for a month is worked out on the lowest balance in the account between the close of the 5th day and the end of that month. So money deposited by the 5th earns for that whole month, and one deposit on or before 5 April earns for the full year. That is why the same amount deposited in one go early in the year grows more than the same amount spread over twelve months.
The rate is set by the Government and the National Savings Institute lists it as 7.1% from 1 April 2020. It is reviewed every quarter, so the calculator lets you change it.
What is the formula for PPF maturity?
- Each year, deposit made on or before 5 April: balance = (balance + deposit) × (1 + rate ÷ 100)
- Monthly deposits: each month the lowest balance earns the rate ÷ 12, and the year’s interest is added at the end of the year
- A PPF account takes ₹500 to ₹1,50,000 in a financial year and matures after 15 financial years
Can you show a worked example of PPF maturity?
₹1,50,000 put in each year on or before 5 April, for 15 years at 7.1%: the balance after year 1 is (0 + 1,50,000) × 1.071 = ₹1,60,650, and after 15 years it is ₹40,68,209, of which ₹22,50,000 is what you invested and ₹18,18,209 is interest. If the same ₹1,50,000 is paid in twelve monthly instalments of ₹12,500 it reaches ₹39,44,599.
What does a PPF account grow to?
Maturity value at 7.1% a year, with one deposit a year on or before 5 April. The rate can change every quarter.
| Invested each year | 15 years | 20 years | 25 years | 30 years |
|---|---|---|---|---|
| ₹10,000 | ₹2,71,214 | ₹4,43,886 | ₹6,87,201 | ₹10,30,061 |
| ₹50,000 | ₹13,56,070 | ₹22,19,429 | ₹34,36,005 | ₹51,50,304 |
| ₹1,00,000 | ₹27,12,139 | ₹44,38,859 | ₹68,72,010 | ₹1,03,00,607 |
| ₹1,50,000 | ₹40,68,209 | ₹66,58,288 | ₹1,03,08,015 | ₹1,54,50,911 |
Common questions
How much can I invest in PPF in a year?
At least ₹500 and at most ₹1,50,000 in a financial year.
How long does a PPF account run?
It matures after fifteen complete financial years from the end of the year it was opened. It can then be extended in blocks of 5 years with further deposits, or kept without deposits.
Why deposit before the 5th?
Interest is earned on the lowest balance between the close of the 5th day and the end of the month, so a deposit made on or before the 5th earns for that whole month.
What is the PPF interest rate?
The National Savings Institute shows 7.1% from 1 April 2020. The Government reviews the rate every quarter, so check the current one.
Is PPF interest taxed?
The National Savings Institute states that the interest is free from income tax. Check the current rules for your situation.