What is the PPF Calculator?
The Public Provident Fund (PPF) is a 15-year government-backed savings scheme that offers attractive tax-free interest. It enjoys EEE (Exempt-Exempt-Exempt) status — your contribution, the interest and the maturity are all tax-free.
Use this calculator to project your PPF maturity, total contribution and interest earned for any annual deposit up to the ₹1.5 lakh ceiling.
Formula
- Balance(y) — Closing balance of year y
- r — Annual PPF interest rate (currently 7.1% p.a.)
Interest is compounded annually on the lowest balance between the 5th and last day of each month — for simplicity we use end-of-year compounding.
Step-by-step example
Setup: ₹1,50,000 every year for 15 years at 7.1% p.a.
- Iterate: each year, add 1,50,000 and grow by 7.1%
- Year-15 balance ≈ ₹40,68,000
Answer: Total invested ₹22,50,000 · Maturity ≈ ₹40,68,000 · Interest ≈ ₹18,18,000 (all tax-free)
Frequently asked questions
Can I extend PPF beyond 15 years?
Yes, in blocks of 5 years any number of times, with or without further contributions.
Is there a deposit ceiling?
Yes — ₹1,50,000 per financial year across all PPF accounts you hold.
Is PPF safer than mutual funds?
Yes. It's sovereign-backed, so risk is virtually zero. But returns also won't beat long-term equity.