PPF is fully tax-free (EEE): deposits qualify for 80C (old regime), and interest and maturity are exempt. Deposit before the 5th of the month (or in April for the year) to earn interest for that month.
How to use the PPF Calculator – Public Provident Fund
- Yearly investment
- Interest rate
- Time period
Results update as you type, and every field accepts the units shown in its menu.
How it works
Enter the yearly investment, interest rate and number of years.
Tips
- Figures use the latest published rates; government scheme rates are revised every quarter.
- Choose between the old and new tax regimes carefully – deductions only count in the old regime.
- Keep proofs of investments and rent for your employer and the tax return.
- Use the official portal of each scheme for exact maturity values.
Common mistakes to avoid
- Assuming scheme interest rates are fixed for the whole term.
- Forgetting tax on interest from fixed and recurring deposits.
- Missing the yearly minimum deposit on PPF or Sukanya Samriddhi accounts.
Inputs explained
| Field | What to enter |
|---|---|
| Yearly investment | Amount in ₹ |
| Interest rate | In % |
| Time period | In years |
What each result means
- Total investment = min([Yearly investment], 150000)×[Time period]
- Maturity value = fvc([Interest rate]÷100, [Time period], 0, min([Yearly investment], 150000), 1)
- Total interest = [Maturity value] – [Total investment]
Example values
How the main result changes when Yearly investment changes and everything else stays at the example values above:
| Yearly investment | Maturity value |
|---|---|
| 75,000 | 2,034,104.61 |
| 112,500 | 3,051,156.92 |
| 150,000 | 4,068,209.22 |
| 187,500 | 4,068,209.22 |
| 225,000 | 4,068,209.22 |
| 300,000 | 4,068,209.22 |
Formula
Maturity = deposit × ((1 + r)^n − 1) ÷ r × (1 + r) (deposits at the start of each year, interest compounded yearly)Total investment = deposit × yearsWorked example
Inputs — Yearly investment: ₹150,000; Interest rate: 7.1 %; Time period: 15 years.
Results — Total investment = ₹2,250,000.00; Maturity value = ₹4,068,209.22; Total interest = ₹1,818,209.22.
Frequently asked questions
What is the PPF interest rate?
7.1% p.a. in recent quarters, compounded yearly.
How much can I invest in PPF?
₹500 to ₹1.5 lakh per financial year.
What is the PPF lock-in?
15 years, with partial withdrawals from year 7 and extensions in 5-year blocks.
What formula does the PPF Calculator – Public Provident Fund use?
Maturity = deposit × ((1 + r)^n − 1) ÷ r × (1 + r) (deposits at the start of each year, interest compounded yearly).