How the PPF estimate is calculated
The calculator adds the selected monthly or yearly deposit, applies one-twelfth of the annual rate to the eligible balance during each month, and credits the accumulated interest after each completed year. Deposits continue for 15 years.
Deposit
Monthly deposits are multiplied across 12 months; yearly deposits are added once.
Timing
The before/after-5th option approximates whether a deposit earns interest for that month.
Rate
The entered rate is held constant for the full projection even though the government reviews PPF rates quarterly.
Rate reviewed on 4 July 2026: 7.1% for July–September 2026. Actual account interest follows notified rates for each period and may differ from this constant-rate estimate.