How to use the PPF calculator
- Enter your yearly or monthly deposit (₹500 to ₹1.5 lakh a year).
- Choose when you deposit; by 5 April earns the most.
- Pick 15 years, or add 5-year extensions with or without deposits.
- See the maturity value, interest and how much each extension adds.
Ponmagan / PPF rules at a glance
| Deposit | ₹500 to ₹1.5 lakh per financial year, multiples of ₹50 · own + minor’s accounts share the ₹1.5 lakh limit |
| Interest | 7.1% (Oct–Dec 2026) · monthly on lowest balance between the 5th and month-end · credited 31 March |
| Maturity | 15 years from the end of the year of opening |
| Extension | Blocks of 5 years · with deposits (Form-4 within 1 year of maturity) or without deposits |
| Loan | From end of year 1 to end of year 5 · up to 25% of the balance two years earlier |
| Withdrawal | After 5 years · once a year · up to 50% (rule above) |
| Tax | Deduction up to ₹1.5 lakh (old regime) · interest and maturity tax-free |
PPF growth at the ₹1.5 lakh maximum (7.1%, by 5 April)
| Years | Invested | Keep depositing | Stop at 15 |
|---|---|---|---|
| 15 | ₹22.50 lakh | ₹40.68 lakh | ₹40.68 lakh |
| 20 | ₹30.00 lakh | ₹66.58 lakh | ₹57.33 lakh |
| 25 | ₹37.50 lakh | ₹1.03 crore | ₹80.78 lakh |
| 30 | ₹45.00 lakh | ₹1.55 crore | ₹1.14 crore |
Our calculation, assuming 7.1% stays constant, which is not guaranteed. “Stop at 15” means invested ₹22.5 lakh only.
Frequently asked questions
What is the PPF interest rate now?
7.1% a year for October–December 2026, tax-free. It is reviewed every quarter and applies to the whole balance.
How much will ₹1.5 lakh a year in PPF become?
Paid by 5 April each year at 7.1%, about ₹40.68 lakh after 15 years (₹22.5 lakh invested). Extending with deposits gives about ₹66.58 lakh at 20 years and about ₹1.03 crore at 25 years, if the rate stays the same.
How do I extend PPF after 15 years?
Within one year of maturity, submit Form-4 to extend in blocks of five years with deposits. If you do nothing, the account continues without deposits and still earns interest.
Is the ₹1.5 lakh limit separate for my child’s PPF?
No. The ₹1.5 lakh yearly limit includes your own PPF and the PPF you open for your minor child as guardian, together.
When can I withdraw from PPF?
Partial withdrawal is allowed after five years from the end of the year of opening, once a year, up to 50% of the balance at the end of the fourth preceding year or the previous year, whichever is lower.
Can I take a loan against PPF?
Yes, from the end of the first year until the end of the fifth year, up to 25% of the balance two years earlier. Interest is 1% a year if repaid within 36 months.
Can I close PPF early?
Only after five years, for life-threatening illness, higher education or a change in residency status, and the interest is reduced by 1 percentage point.
🎥 Watch the full explanation in Tamil on Pradeep Wealth Talks on YouTube: Ponmagan (PPF) for your son, and the parent + child limit trap. Subscribe for new videos every week.
Sources: Public Provident Fund Scheme 2019 (Gazette text); Ministry of Finance rate notification for Oct–Dec 2026. Last updated 2026-11-09.