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🏛️ PPF Calculator
Public Provident Fund — maturity value, interest earned, and yearly schedule

A PPF of ₹1,50,000 for 15 years at 7.1% grows to ₹40.68 L.

Formula

Maturity Value = Σ, for each of the 15 years, Annual Contribution compounded annually at the PPF interest rate for the remaining years

Worked example
InputValue
Yearly Contribution₹1,50,000
Existing PPF Balance₹0
Tenure15 yr
Interest Rate7.1%
Maturity Value₹40,68,209
Total Interest Earned₹18,18,209
Total Amount Deposited₹22,50,000
Effective CAGR4.03%
Tax Saved (30% slab est.)₹6,75,000

How PPF grows your money

PPF is India’s cleanest compoundingEarning returns on your returns — growth that accelerates over time. machine: a sovereign-backed ~7.1% that is never taxed — not on entry (80CA tax deduction of up to ₹1.5 lakh for set investments. deductionAn amount subtracted from income before tax., old regime), not while growing, not on withdrawal. The calculator compounds your deposits annually over the 15-year tenure (extendable in 5-year blocks, indefinitely).

ExampleThe full ₹1.5 lakh every year for 15 years at 7.1% grows to about ₹40.7 lakh — entirely tax-free. An FDA bank deposit locked for a fixed term at a fixed rate. would need to pay ~10.1% pre-tax to match this for someone in the 30% bracket. Extend the account 5 more years (with fresh deposits) and the corpus crosses ~₹66 lakh.
A quirk worth real money: PPF pays interest on the lowest balance between the 5th and the last day of each month. Deposit before the 5th — ideally the full ₹1.5 lakh in the first week of April — and every rupee earns for the whole year. The same deposit made in March earns essentially nothing that year.
Common mistakeParking money in PPF that you’ll need before year 15. Partial withdrawals open only from year 7 (with limits); the lock-in that powers the compoundingEarning returns on your returns — growth that accelerates over time. is a trap for medium-term goals. PPF is the debt sleeve of your retirement — dated goals belong in FDs or debt funds.
✓ You learnedPPF = guaranteed 7.1%, zero tax, 15-year horizon: unbeatable for the safe core of retirement money up to ₹1.5 lakh a year. Deposit early in April, before the 5th, and extend in 5-year blocks if you don’t need the corpus.
FAQs
What happens to my PPF after 15 years?

Three choices: withdraw everything tax-free; extend 5 years without new deposits (the corpus keeps earning, one withdrawal allowed per year); or extend 5 years with deposits (submit Form H within a year of maturity). Many retirees ladder indefinite 5-year extensions and use the annual withdrawal as tax-free income.

Is PPF better than ELSS for 80C?

They solve different problems: PPF is a guaranteed, tax-free 7.1% over 15 years; ELSS is an equity fund (3-year lock) with ~11-13% expected but market-linked returns. Certainty and capital protection → PPF; long-horizon growth and crash tolerance → ELSS; many split between both. And on the new regime, neither earns a deduction — invest on merit.