Understanding your result
The chart separates money paid in from the projected account balance. The year-15 result marks the end of contributions; the final result includes another six years of modeled interest.
Compare the different deposit timing and term assumptions in the PPF Calculator .
The formula
This is a beginning-of-year contribution scenario across complete financial years, with interest rounded to the nearest rupee each year. It approximates an account opened and funded at the start of April. It does not reconstruct a dated bank ledger.
Worked example
At ₹12,000 per year, total contributions are ₹180,000 across 15 years. At an assumed 8.2%, the first deposit earns ₹984 in its full first year, giving ₹12,984. If the assumed rate is zero, both the year-15 and year-21 balances are exactly ₹180,000.
How to use this calculator
- Enter the amount you plan to deposit at the beginning of each year.
- Set a constant annual rate for your scenario.
- Inspect year 15 to see the end of deposits, then year 21 for the full projection.
Account age, not the child’s twenty-first birthday
The scheme’s normal 21-year term runs from account opening. It does not mean maturity on the child’s twenty-first birthday. Opening eligibility and any early-closure provisions must be checked separately with the account provider. This calculator deliberately tracks account years, so the chart cannot be mistaken for the child’s age.
Why an actual statement can differ
The scheme calculates interest from eligible monthly balances and credits it for the financial year. Paying the annual amount later, dividing it into installments, or opening midyear changes that path. Future quarterly rate announcements also change the outcome. Use this schedule to compare contribution budgets; use the actual dated statement for a precise account reconciliation.
Assumptions & limitations
What this calculation assumes
- A full annual contribution is available at the beginning of each of the first fifteen years.
- No withdrawals, missed contributions, or early closure; the rate is constant.
What to keep in mind
- This scenario is not an eligibility check, tax calculation, or dated maturity quotation.
- Monthly deposit timing and partial opening or closing financial years are outside this model.
Common questions
Do deposits continue for all 21 years?
No. The modeled contribution period lasts fifteen years. The remaining six years add interest without new deposits.
Is the 8.2% example guaranteed for the whole term?
No. It is an editable assumption. The government can revise notified small-savings rates, so a long-term constant-rate projection is only a scenario.