PPF Calculator
A sovereign-backed, tax-free savings scheme that compounds once a year. See what your yearly deposit matures into — in lakh and crore.
Your PPF account
Statutory maximum ₹1.5 lakh per financial year; minimum ₹500.
15-year lock-in, extendable in 5-year blocks.
7.1% p.a. for July–September 2026, unchanged since April 2020; reviewed quarterly by the government.
At maturity
Year-by-year ledger
Crore crossings in green| Year | Invested so far | Interest so far | Balance | In crore |
|---|
How PPF maturity is calculated
The Public Provident Fund compounds annually. Each year your deposit A is added at the start and the whole balance earns the year's rate r: balance = (balance + A) × (1 + r). Do that for the full term and the interest quietly overtakes the deposits, because every year's interest itself earns interest in the years that follow.
At the current 7.1%, the statutory maximum of ₹1.5 lakh a year for the full 15-year term matures at about ₹40.68 lakh — of which ₹22.5 lakh is your own deposits and roughly ₹18.18 lakh is tax-free interest. Extending in 5-year blocks pushes the balance up steeply, since it starts each block from a much larger base.
PPF questions
What is the current PPF interest rate?
7.1% per annum for the July–September 2026 quarter, unchanged since April 2020. The government reviews small-savings rates every quarter, so the rate can move up or down for future quarters even though your existing balance always earns the notified rate.
What does ₹1.5 lakh a year for 15 years become?
At 7.1%, depositing the ₹1.5 lakh maximum at the start of each year for 15 years matures at about ₹40.68 lakh. Your deposits total ₹22.5 lakh and the remaining ₹18.18 lakh is interest — and all of it is tax-free on maturity.
Can I extend a PPF account beyond 15 years?
Yes. After the 15-year lock-in you can extend in blocks of 5 years, as many times as you like. You may extend with fresh contributions (submit Form H) or without them, in which case the balance simply keeps earning interest. Because each block compounds on a larger base, the later years add the most.