PPF Calculator

How the maturity value is calculated

The tool takes your yearly deposit, the interest rate and the number of years. For each year it adds the deposit and then applies a full year of interest: balance = (balance + deposit) × (1 + rate). In effect, every deposit is treated as made at the start of the year.

Worked example

Depositing Rs. 1,50,000 a year for 15 years at 7.1% gives about Rs. 40,68,209, from total deposits of Rs. 22,50,000. Rs. 1.5 lakh is the maximum that can be deposited in a PPF account in a financial year.

Differences from a real PPF account

• Interest timing: actual PPF interest is calculated on the lowest balance between the 5th and the end of each month, so money deposited after the 5th earns nothing for that month. Depositing before the 5th of April, or in one lump sum, matches this calculator best.
• The rate changes. The government resets it every quarter, so 7.1% is an assumption for the whole term.
• Extensions: the standard term is 15 years, and the account can be extended in blocks of 5 years. The tool will accept other durations but does not model extension rules.

PPF interest and maturity are tax-free in India, which makes it useful to compare against a taxable fixed deposit.