PPF Calculator

The Public Provident Fund is one of India’s most popular long-term savings options. Backed by the government, it pairs a guaranteed rate of return with generous tax treatment: your deposits qualify for a deduction, the interest accrues tax-free, and the final maturity amount is exempt too. That combination — safety plus a tax-free return — is why so many people use it as the bedrock of their retirement or goal-based savings.

The trade-off is liquidity. A PPF locks your money away for fifteen years, with only limited partial withdrawals allowed from the seventh year. It rewards patience rather than quick access.

Each year you deposit up to ₹1,50,000, and interest is compounded once at the end of the financial year. Because every year’s interest is added back to the balance, the next year’s interest is worked out on a larger sum — the familiar compounding effect. Deposit early in the year, ideally before the 5th of April, and your contribution earns interest for all twelve months rather than missing a slice of it.

The maturity value follows the future value of an annuity: M = D × (((1 + i)ⁿ − 1) / i) × (1 + i), where D is the yearly deposit, i the annual rate as a decimal, and n the number of years — the extra (1 + i) reflecting deposits that earn from the start of each year.

PPF is one of the few Indian instruments to enjoy exempt-exempt-exempt status, and that is the main reason it stays so popular. The three exemptions are:

• Exempt on the way in — your deposits, up to ₹1.5 lakh a year, are deductible from taxable income under Section 80C.
• Exempt while it grows — the interest credited each year is not taxed, unlike a bank fixed deposit where interest is added to your income.
• Exempt on the way out — the entire maturity amount, principal plus accumulated interest, is tax-free in your hands.

Because nothing is shaved off by tax at any stage, the effective return on a PPF is higher than the headline rate suggests once you compare it with a taxable alternative at the same nominal rate.

The table below is produced by the same engine that powers the calculator above, using the maximum yearly deposit and start-of-year timing. Watch the interest column climb each year even though the rate never changes — that is compounding rewarding the years you stay invested.

A PPF account can be opened by any resident individual, and a parent or guardian can open one on behalf of a minor. There are a few rules worth knowing before you start:

• You may hold only one account in your own name.
• The minimum deposit is ₹500 a year; miss it and the account is treated as inactive until you pay a small penalty plus the arrears.
• NRIs cannot open a new account, though an account opened while resident can run to maturity.
• Hindu Undivided Families (HUFs) are not eligible to open new accounts.

PPF is long-term by design, but it is not completely locked. A loan is available fairly early, and partial withdrawals open up later:

The calculator can model both a yearly partial withdrawal and a loan as side calculations, so you can see their effect without guessing.

The PPF rate is reset every quarter by the Ministry of Finance, so it drifts over a fifteen-year term. The recent path has been gently downward and then flat. A few illustrative periods:

Figures are indicative of recent quarters and rounded for readability; always check the latest notified rate before relying on a projection.

PPF is not the only Section 80C choice. The right pick depends on how long you can lock the money away and how much risk you are comfortable with. A quick comparison:

There is no single “best” — many investors pair PPF’s guaranteed, tax-free base with a market-linked option like ELSS for growth. The NPS calculator models the main pension-focused alternative in the table above.

When the initial term ends you are not forced to close the account. You can extend it in five-year blocks, either leaving the corpus to keep compounding or continuing to contribute. To model an extension, set your current balance to your existing corpus and choose a shorter tenure — the calculator will project the growth from there.

The PPF interest rate is reviewed by the Government of India every quarter, so it can rise or fall over a fifteen-year term. This tool assumes the single rate you enter stays constant throughout. Treat the result as an illustration of how the scheme compounds — not as a guaranteed outcome or as financial advice.