How is PPF maturity calculated?

PPF interest compounds annually. Each yearly deposit earns interest for the years remaining until maturity. With a fixed yearly deposit, the maturity is the future value of an annuity: deposit × [((1+r)^t − 1) ÷ r] × (1+r).

What is the PPF interest rate and tenure?

The rate is set by the government each quarter and has been 7.1% for some time; the base tenure is 15 years, extendable in blocks of 5. Enter the current rate to be exact.

Yes. PPF is EEE — the deposit qualifies under Section 80C in the old regime, and the interest and maturity are tax-free.

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Finance & tax

PPF Calculator

See what your Public Provident Fund grows to. Enter a yearly contribution, the interest rate and the tenure, and you'll get the maturity value, your total deposits and the tax-free interest earned.

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Your PPF

Yearly deposit max ₹1.5 lakh

₹

Interest rate 7.1% current, editable

Tenure 15 yrs

Maturity value—

Total deposited—

Interest earned (tax-free)—

Monthly equivalent deposit—

How it's calculated

PPF interest compounds once a year. Assuming a fixed deposit at the start of each year, every deposit earns interest for the years remaining, so the maturity is the future value of an annuity due. The interest and maturity are entirely tax-free.

Maturity = deposit × [((1+r)^t − 1) ÷ r] × (1+r). Base tenure 15 years, extendable in 5-year blocks; rate is set quarterly by the government.

Frequently asked questions

When should I deposit?

Interest is calculated on the lowest balance between the 5th and month-end, so depositing before the 5th of April each year maximises interest.

Can I extend after 15 years?

Yes, in blocks of 5 years, with or without further contributions — raise the tenure to see the effect.

Deposit limit?

₹1.5 lakh per financial year across your PPF accounts.

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