India PPF Calculator
See what your Public Provident Fund will be worth after 15 years or more, and how much tax-free interest it earns.
Rate set quarterly by the government — check the current rate.
Money paid after the 5th earns no interest for that month.
Extensions come in blocks of 5 years.
Year-by-year table and chart
| Year | Deposit | Interest | Taken out | Balance | Can borrow / take out |
|---|
Interest is added on 31 March each year. Loans are allowed in years 3 to 6 and withdrawals from year 7.
What if you extend after 15 years?
| Keep it for | Keep depositing | Stop deposits |
|---|
Within a year of maturity you can extend for 5 years at a time, as many times as you like. Without new deposits the balance still earns interest.
How your PPF maturity is worked out
Interest is worked out each month on the lowest balance after the 5th, then added once a year on 31 March.
- 1
Counted for interest
₹1,50,000 × 12 ÷ 12
by 5 April
= ₹1,50,000 - 2
Year 1 interest
₹1,50,000 × 7.1%
= ₹10,650 - 3
Grows 15 years
15 yearly credits
in: ₹22,50,000
= ₹40,68,209 - 4
Tax-free interest
₹40,68,209
− ₹22,50,000
= ₹18,18,209
Read more: the formula, a worked example, rules, tax and extensions
PPF works out interest each month on the lowest balance between the 5th and the last day of the month, adds those monthly amounts up, and credits them to your account once a year on 31 March. Because the interest joins the balance each year, it earns interest itself from then on.
The formula
each month's interest = lowest balance from the 5th to month end × rate ÷ 12
yearly interest = sum of the 12 months, added on 31 March
same deposit P every year by 5 April, for n years:
maturity = P × ((1 + r)n − 1) ÷ r × (1 + r)
Here r is the yearly rate as a decimal (7.1% = 0.071). A deposit made by the 5th counts for that whole month; one made after the 5th starts earning the next month. So ₹12,500 paid by the 5th of every month earns interest for 12 + 11 + … + 1 = 78 month-shares in its first year, the same as ₹81,250 sitting there all year.
Worked example
₹1,50,000 a year paid by 5 April, for 15 years at 7.1%. In year 1 the interest is ₹1,50,000 × 7.1% = ₹10,650. Over 15 years: 1.07115 = 2.7979636, so (2.7979636 − 1) ÷ 0.071 = 25.3234312, × 1.071 = 27.1213948, and ₹1,50,000 × 27.1213948 = ₹40,68,209. You put in ₹22,50,000, so ₹18,18,209 is tax-free interest.
Paying the same yearly total as ₹12,500 by the 5th of each month gives ₹39,44,599, about ₹1.24 lakh less. Paying after the 5th each month gives ₹39,22,125.
PPF rules at a glance
| Rule | What it means |
|---|---|
| Deposit | ₹500 to ₹1,50,000 each financial year, in one go or in parts |
| Term | 15 full financial years after the year you open it |
| Extension | Blocks of 5 years, with or without new deposits (tell the bank or post office within a year of maturity to keep depositing) |
| Loan | Years 3 to 6: up to 25% of the balance at the end of the 2nd year before; interest is the PPF rate + 1% if repaid within 36 months |
| Partial withdrawal | From year 7, once a year: up to 50% of the lower of the balance at the end of the 4th year before or at the end of last year |
| In an extension | With deposits: up to 60% of the balance at the start of the block, in total over the 5 years. Without deposits: any amount, once a year |
| Tax | EEE: deposits qualify for 80C (old regime), interest and maturity are tax-free |
Tax: old and new regime
Under the old regime, PPF deposits count towards the Section 80C deduction of up to ₹1,50,000 a year, shared with EPF, ELSS, life insurance premiums and others. The new regime has no 80C deduction, but PPF interest and the maturity amount stay tax-free under both. At a 30% slab plus 4% cess, a ₹1,50,000 deposit saves ₹46,800 in tax that year, and a taxable FD would need about 10.32% to match PPF's 7.1% after tax.
Extending your PPF
Extending for 5 more years without deposits grows ₹40,68,209 to ₹57,32,587 at 7.1%. Keeping up ₹1,50,000 a year instead gives ₹66,58,288. You can extend as many times as you like.
This calculator treats each year as a financial year (April to March), takes withdrawals at the start of the year, and uses one rate for the whole time. The real rate is set by the government each quarter and has ranged from about 7.1% to 8.8% since 2012, so treat the result as an estimate. Because the term is 15 full years after the year you open the account, an account opened early in a financial year can take 16 yearly deposits; this calculator counts 15, like most. For an existing account, earlier year-end balances are taken as today's balance when checking withdrawal and loan limits. Rules as of 10 October 2026, not yet confirmed on the official India Post or National Savings site, so please check the current rate.
Common questions
How is PPF interest calculated?
Interest is worked out each month on the lowest balance between the 5th and the end of the month, at the yearly rate ÷ 12, and the year's total is added on 31 March. So a deposit made by the 5th earns interest for that whole month, while one made after the 5th starts earning the next month.
What will ₹1.5 lakh a year in PPF give after 15 years?
Paying ₹1,50,000 a year by 5 April for 15 years at 7.1% gives about ₹40,68,209. You put in ₹22,50,000, so ₹18,18,209 is tax-free interest. The government sets the PPF rate each quarter, so check the current rate before you rely on the figure.
Is PPF interest taxable?
No. PPF is EEE: deposits qualify for the Section 80C deduction under the old regime, and the interest and maturity amount are tax-free. The new regime has no 80C deduction, but PPF interest and maturity stay tax-free under both regimes. Check the official rules for any changes.
Can I withdraw from PPF before 15 years?
From year 7 you can make one partial withdrawal a year, of up to 50% of the lower of the balance at the end of the 4th year before or at the end of last year. In years 3 to 6 you can take a loan instead, of up to 25% of the balance at the end of the 2nd year before.
Can I extend my PPF account after 15 years?
Yes, in blocks of 5 years, with or without new deposits, as many times as you like. To keep depositing, tell the bank or post office within a year of maturity. In the example, ₹40,68,209 grows to ₹57,32,587 after 5 more years without deposits, or ₹66,58,288 if you keep paying ₹1,50,000 a year.
Is it better to pay into PPF in April or every month?
A lump sum by 5 April earns interest for the whole year, so it gives the most. ₹1,50,000 by 5 April for 15 years at 7.1% gives ₹40,68,209, while ₹12,500 by the 5th of each month gives ₹39,44,599, about ₹1.24 lakh less. Paying after the 5th each month gives less again.
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