Learn before you calculate
PPF Calculator: a practical India guide
Project how annual PPF contributions may grow across the original 15-year term and optional extension periods. Use the notified rate as an assumption and remember that the government can revise it over time.
Educational estimates, not financial, tax or legal advice
Quick answer
PPF interest is calculated under scheme rules and credited annually. Because the notified rate can change, a long-term projection should be read as a scenario—not a guaranteed maturity quotation.
How to use this calculator well
- 1Enter the amount you expect to contribute during each financial year.
- 2Check that the assumed interest rate matches the currently notified PPF rate.
- 3Set the original term and any five-year extension blocks you want to illustrate.
- 4Review yearly balances, total contributions and estimated interest.
- 5Revisit the projection when the notified rate or your annual contribution changes.
Formula and method
PPF projection approach
Closing balance = Opening balance + eligible deposits + annual interest
Interest is calculated according to PPF scheme timing rules and credited annually. A constant-rate calculator simplifies future rate changes, so actual account statements can differ.
How the PPF calculator estimates maturity
The projection begins with your contribution, adds interest to the eligible balance, and carries the closing amount into the next year. Over 15 years, interest can become a large part of the maturity value because it also earns interest in later years.
The calculation becomes less certain farther into the future because the PPF rate is notified periodically. A constant-rate illustration is useful for planning, but the actual maturity value will follow the rates and transactions recorded in your account.
Annual contribution and the fifth-day timing rule
The PPF Scheme sets an annual minimum and maximum contribution. Contributions may be made in a lump sum or instalments, subject to current rules. Amounts beyond the eligible annual limit do not receive the same treatment as valid scheme subscriptions.
Official India Post guidance explains that deposit timing around the fifth day of a month affects interest eligibility. If maximising interest is important, verify the current transaction-credit rule with the account office and allow time for payment clearance.
PPF withdrawal, loan and extension planning
PPF is a long-term account, but the scheme provides conditional loan and partial-withdrawal facilities. The available amount and timing depend on account years and prescribed limits. A calculator’s projected balance does not mean the full amount is freely withdrawable at every point.
After maturity, an eligible account can generally be extended in five-year blocks under applicable rules. Extension with contributions and extension without further contributions behave differently, so make the choice through the required process and within the allowed time.
PPF versus FD or equity SIP
PPF is a government small-savings product with a long horizon and scheme-based tax treatment. An FD has institution-specific rates and easier tenure choice, while an equity SIP is market-linked and can provide higher or lower outcomes. Comparing only one projected maturity value hides these differences.
Use PPF for the part of a plan that suits its lock-in, contribution rules and risk characteristics. A diversified goal plan may use more than one instrument instead of forcing every objective into a 15-year account.
Questions people ask
PPF Calculator FAQs
Concise answers to common planning questions. Open any question for the full explanation.
What is the maturity period of a PPF account?
The original term is 15 years under the PPF Scheme, calculated according to scheme rules. Eligible accounts can be extended in five-year blocks.
What is the current PPF interest rate?
The government notifies the rate periodically. Check India Post or another official small-savings source before using a rate in a long-term calculation.
Is PPF interest calculated monthly?
Interest eligibility is determined using prescribed monthly balance rules, while interest is credited annually. Deposit timing can therefore matter.
Why should a PPF deposit be made before the fifth?
Official guidance states that a deposit must be credited by the relevant fifth-day cut-off to earn interest for that month. Allow for payment processing and verify the current rule.
What are the minimum and maximum PPF contributions?
The PPF Scheme 2019 specifies a ₹500 annual minimum and ₹1.5 lakh annual maximum, subject to current amendments and aggregation rules. Verify the latest official scheme before contributing.
Can I deposit monthly in PPF?
Yes, contributions may be made in instalments subject to the scheme’s annual limits and transaction rules. A yearly lump sum is not compulsory.
Can I withdraw PPF before 15 years?
Conditional partial withdrawals and premature closure provisions exist, but they are not unrestricted. Eligibility depends on the account year and prescribed reasons or limits.
Can I take a loan from my PPF balance?
The scheme provides a loan facility during specified account years and within calculated limits. Check your account office for current eligibility and repayment terms.
Can a PPF account be extended after maturity?
Eligible accounts can generally be extended in blocks of five years. Extension with fresh contributions requires following the prescribed option and timeline.
Can an NRI open a new PPF account?
PPF eligibility is governed by current scheme rules and residential status provisions. Confirm with the authorised institution before opening or continuing an account after a status change.
Is PPF better than an FD?
They solve different needs. PPF has a long scheme term and government-notified rate; an FD offers selectable tenures and institution-specific rates. Compare liquidity, tax, risk and goal date.
Will the calculator maturity amount exactly match my PPF account?
Not necessarily. Actual results depend on future notified rates, transaction dates, withdrawals, loans and account-specific entries. Treat the output as a planning estimate.