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Calculates

PPF Calculator

Estimate your Public Provident Fund investment value, accumulated tax-free interest, and maturity wealth.

Calculated & verified for mathematical accuracy·Reviewed by the Calculates Editorial Team

PPF details

500 – 1,50,000

Min: ₹500, Max: ₹150000 per financial year.

3 – 15
15 – 50

Initial lock-in is 15 years. You can extend in 5-year blocks up to 50 years.

Contribution timing

Maturity Value

₹27,12,139

Compounded annually over 15 years.

Total Deposited
₹15,00,000
Est. Interest Earned
₹12,12,139
  • Invested₹15,00,000
  • Interest₹12,12,139

Interest rate and applicable limits are assumptions and may change. Verify current rules before making financial decisions.

Accumulated growth visual

Yr 1: ₹1,07,100
1
Yr 2: ₹2,21,804
2
Yr 3: ₹3,44,652
3
Yr 4: ₹4,76,223
4
Yr 5: ₹6,17,134
5
Yr 6: ₹7,68,051
6
Yr 7: ₹9,29,682
7
Yr 8: ₹11,02,790
8
Yr 9: ₹12,88,188
9
Yr 10: ₹14,86,749
10
Yr 11: ₹16,99,409
11
Yr 12: ₹19,27,167
12
Yr 13: ₹21,71,095
13
Yr 14: ₹24,32,343
14
Yr 15: ₹27,12,139
15

About this calculator

The Public Provident Fund (PPF) is a popular long-term, government-backed savings scheme in India offering tax-free interest, guaranteed safety, and excellent compounding growth. This calculator estimates your total contributions, accumulated tax-free interest, and final maturity corpus over your investment tenure.

How to use this calculator

  1. Enter your annual contribution

    Input your planned annual deposit amount. Under Indian tax laws, the minimum is ₹500 and the maximum is ₹1,50,000 per fiscal year.

  2. Choose your contribution timing

    Select whether you invest at the "Beginning of the year" (before the 5th of April for maximum interest) or the "End of the year". Investing earlier allows interest to accrue over the full 12 months.

  3. Review the current interest rate

    Verify the annual PPF interest rate assumption. The default is set to the current government-sanctioned rate, but can be updated as regulatory policies move.

  4. Examine maturity corpus and growth schedule

    View your total principal contributions versus estimated accumulated interest. Scroll down to see your year-by-year balance compounding.

Formula

F = P × [ (1 + r)ᵗ − 1 ] ÷ r × (1 + r) (Beginning of Year)
  • F is the final maturity value of the PPF account.
  • P is the constant annual contribution amount.
  • r is the annual interest rate as a decimal (e.g. 7.1% becomes 0.071).
  • t is the investment tenure (minimum 15 years, can be extended indefinitely in 5-year blocks).
  • Beginning-of-year contributions earn interest over the full year, matching the annuity-due model. End-of-year contributions earn interest on the opening balance only.

Worked example

Inputs

  • Annual contribution (P): ₹1,50,000
  • Interest rate: 7.1% per year
  • Tenure: 15 years
  • Timing: Beginning of the year

Calculation

Year 1: Opening Balance: ₹0 Contribution: ₹1,50,000 Interest (7.1% of 1,50,000) = ₹10,650 Closing Balance = ₹1,60,650 Year 2: Opening Balance: ₹1,60,650 Contribution: ₹1,50,000 Interest (7.1% of (1,60,650 + 1,50,000)) = ₹22,056 Closing Balance = ₹3,32,706 Repeating for 15 years yields: Total Deposited: ₹22,50,000 Maturity Value: ₹40,68,209

After 15 years of investing ₹1,50,000 annually, your final maturity corpus is ₹40,68,209, of which ₹18,18,209 is pure tax-free interest.

What the result means

  • Total Deposited is the actual sum of your contributions over the tenure (e.g. ₹22.5 Lakhs in the example).
  • Estimated Interest is the pure compounded return earned on your contributions. Under PPF rules, this entire interest is completely tax-free.
  • Maturity Value is the final sum you will receive upon completing the 15-year term. This can be withdrawn or extended.
  • Compounding benefits longer terms. The interest earned in the final 5 years of a 15-year term often exceeds all the interest earned in the first 10 years combined.

Related calculations

  • Compare different annual contribution sizes (e.g. ₹50,000 vs ₹1,50,000) to see how compounding scales with your principal.
  • Extend the investment period to 20 or 25 years to visualize how dramatically PPF returns expand over extended terms.
  • Toggle between beginning and end-of-year contribution timings to find out how much interest you lose by delaying your annual deposits.

Frequently asked questions

What is the minimum and maximum PPF contribution limit?

Under Indian regulatory rules, a PPF account requires a minimum contribution of ₹500 and allows a maximum contribution of ₹1,50,000 per fiscal year. You can make deposits as a single lump sum or in up to 12 installments. Any amount deposited exceeding the ₹1.5 Lakh limit will not earn any interest and will not be eligible for tax deductions.

What is the locking period of a PPF account?

A PPF account carries a mandatory maturity lock-in period of 15 years from the end of the financial year in which the account was opened. Upon maturity, you can either withdraw the full corpus tax-free, or extend the account indefinitely in blocks of 5 years, with or without making new contributions.

When should I deposit money in my PPF account to earn maximum interest?

PPF interest is calculated monthly based on the lowest balance between the close of the 5th day and the last day of the month. Therefore, to earn maximum interest, you should make your annual deposit before the 5th of April (at the very beginning of the financial year). If you pay monthly, ensure your deposits land before the 5th of every month.

Is PPF interest completely tax-free?

Yes, PPF is one of the few financial products in India that enjoys the highly coveted EEE (Exempt-Exempt-Exempt) tax status. Your annual contributions are deductible under Section 80C, the interest earned year-on-year is completely exempt from income tax, and the final maturity corpus is also fully tax-free upon withdrawal.

Can I withdraw money from my PPF account before 15 years?

Partial withdrawals are permitted from the 7th financial year onwards, subject to specific limits (typically up to 50% of the balance at the end of the 4th preceding year or the immediate preceding year, whichever is lower). Complete premature closure is only allowed after 5 years under extreme grounds such as medical emergencies or higher education.

Can the PPF interest rate change?

Yes, the Government of India reviews and announces the PPF interest rate on a quarterly basis. While interest compounds annually, the actual rate applied to your balance fluctuates based on government notification. This calculator uses a constant rate assumption, so actual future maturity values can vary.

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