Estimate your PPF maturity value in seconds using the current 7.1% interest rate and the official fifth-day balance rule.
A PPF Calculator estimates your Public Provident Fund maturity value from the opening balance, annual contribution, investment period and interest rate. It follows the monthly fifth-day balance rule in the Public Provident Fund Scheme, 2019.
Salaried employees, self-employed professionals, small-business owners and finance professionals can use it to compare annual PPF contributions. An existing PPF account held by someone who later becomes an NRI can continue under the applicable rules.
PPF interest uses the lowest balance between the close of the 5th day and the end of each month. Interest is credited at the end of the financial year. The scheme operates under Section 3A of the Government Savings Promotion Act, 1873.
For an annual April contribution, the calculator applies the rule month by month:
Monthly PPF interest
= Eligible monthly balance × (Annual interest rate ÷ 12)
Annual interest
= Sum of the 12 monthly interest amounts
Closing balance
= Opening balance + Annual contribution + Annual interest
When the annual April contribution reaches the account by the 5th, the contribution is eligible for all 12 months. When it arrives after the 5th, it misses April and earns interest for the next 11 months. The opening balance remains eligible for the full year when no withdrawal changes it.
The PPF rate used here is 7.1% per annum for Q2 FY 2026–27, July to September 2026. The Department of Economic Affairs listed the 30 June 2026 small-savings rate revision, and the Q2 rates remained unchanged.
The 7.1% rate for deposits made from 1 April 2020 comes from the Public Provident Fund (Amendment) Scheme, 2020, which amended paragraph 7.
For a different provident-fund framework, use the GPF Calculator. For a market-linked retirement projection, use the NPS Calculator. These tools follow different rules.
Priya starts with a ₹0 PPF balance. She deposits ₹1,00,000 every April by the 5th and keeps the rate at 7.1% for a 15-year planning estimate.
Year 1 works like this:
Opening balance ₹0
Annual contribution ₹1,00,000
Interest for year ₹7,100
Year 1 closing balance ₹1,07,100
In year 2, Priya starts with ₹1,07,100 and adds ₹1,00,000 by 5 April. The full ₹2,07,100 earns the 7.1% annual rate for the year.
Year 2 interest
= ₹2,07,100 × 7.1%
= ₹14,704.10
Year 2 closing balance
= ₹1,07,100 + ₹1,00,000 + ₹14,704.10
= ₹2,21,804.10
The same calculation carries forward for each year. At the end of 15 years, the constant-rate projection is:
Total new contributions ₹15,00,000
Total interest earned ₹12,12,139.48
Estimated maturity value ₹27,12,139.48
Your actual maturity value can differ because the government can change the notified PPF rate for future periods. Deposit timing also changes the interest earned under the fifth-day rule.
The PPF Scheme, 2019 sets the annual subscription range at ₹500 to ₹1,50,000, with deposits in multiples of ₹50. The ₹1,50,000 ceiling combines deposits in the individual's own account and an account opened on behalf of a minor.
For Q2 FY 2026–27, from July 1 to September 30, 2026, PPF carries 7.1% per annum. The Department of Economic Affairs published the small-savings rate revision on June 30, 2026, and its current small-savings index lists that notification.
The standard account matures after 15 years from the end of the year in which the account was opened. After maturity, the account can continue without fresh deposits, or the holder can extend it with deposits for further five-year blocks subject to the scheme conditions.
A resident who later becomes an NRI can continue the existing PPF account until maturity under the applicable non-resident provisions; the account cannot be extended after maturity.
The PPF interest rate for Q2 FY 2026–27, covering July to September 2026, is 7.1% per annum. The Department of Economic Affairs kept small-savings rates unchanged for that quarter. Future quarters can carry a different notified rate, so a 15-year projection at 7.1% remains a planning estimate rather than a fixed-rate promise.
PPF interest uses the lowest balance between the close of the 5th day and the end of each month. The annual rate is divided by 12 for the monthly calculation, and the interest is credited at the end of the financial year. A deposit after the 5th therefore misses interest for that month.
You can deposit up to ₹1,50,000 in a financial year. The minimum annual deposit is ₹500, and deposits must be in multiples of ₹50. The ₹1,50,000 ceiling includes deposits in your own account and an account opened on behalf of a minor under the PPF Scheme.
A deposit that reaches the PPF account by the 5th of April can form part of the balance eligible for April interest. A deposit after the 5th misses April interest. The difference is only one month's interest in the first year, but repeated early deposits can increase the long-term PPF maturity value through compounding.
The scheme counts maturity as 15 years from the end of the financial year in which the account was opened. It does not simply add 15 calendar years to the opening date. For example, an account opened during FY 2026–27 reaches its standard maturity after the prescribed 15-year period counted from that financial year's end.
Yes, but the timing of each deposit matters. This calculator models one annual April contribution, either by the 5th or after the 5th. A monthly contribution plan needs each deposit checked against the fifth-day rule for its own month, so its result can differ from an annual lump-sum projection.
Yes. The government notifies small-savings interest rates for specified periods. A 15-year projection at 7.1% assumes that rate remains unchanged for planning purposes, but future notifications can change the rate. If the notified PPF rate changes, update the calculator and rerun the projection.
Calculations verified by our team including CA Anita Patil. View our full accuracy policy and meet the team →
For informational purposes only. Results are estimates based on the inputs you provide and the rules in effect for the period shown, and are not tax, legal or financial advice. Verify figures against the relevant official source and consult a qualified professional before acting on them. Accuracy & limitations
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