What Is PPF?
The Public Provident Fund is a long-term savings scheme backed by the Government of India, designed to encourage disciplined, long-horizon saving. It can be opened at a bank or post office, and interest is credited annually at a rate the government sets and revises periodically — it is not a fixed rate for the life of the account.
The 15-Year Lock-In
A PPF account has a maturity period of 15 years from the end of the financial year in which it was opened. This long lock-in is a deliberate design feature: it makes PPF unsuitable for short-term goals but effective for long-term ones like retirement planning or a child’s future education, since the extended period lets compounding work over many years.
How Interest Is Calculated
Interest is calculated monthly on the lowest balance between the 5th and the last day of the month, but is credited to the account only once a year, at the end of the financial year. This means depositing before the 5th of a month (rather than later) lets that month’s deposit start earning interest sooner — a small but genuine optimisation many PPF holders use.
Extension After Maturity
After the initial 15 years, a PPF account can be extended in blocks of 5 years, either with continued contributions or without — giving flexibility to keep the account (and its interest) running well past the initial maturity date if it isn’t needed immediately.
Partial Withdrawals and Loans
PPF allows partial withdrawals from the 7th financial year onward, subject to specific rules on the maximum amount, and loans against the PPF balance are available earlier, between the 3rd and 6th years. These features exist for genuine need, not routine access — PPF is fundamentally built around staying invested for the full term.
Why PPF Is Often Recommended for Long-Term, Low-Risk Saving
Because it is government-backed, PPF carries very low risk compared to market-linked investments, and its specific tax treatment (across contribution, interest, and maturity) has made it a longstanding part of conservative long-term financial planning in India. Always check the current interest rate and contribution limits on the official portal before opening or contributing, since these are revised periodically.