Post Office PPF Calculator
Estimate your Public Provident Fund maturity amount, total invested amount, and interest earned.
What is a Post Office PPF account?
A Post Office Public Provident Fund (PPF) account is a long-term, government-backed savings scheme in India. It is popular because it offers tax benefits, relatively stable returns, and sovereign safety. The standard lock-in period is 15 years, and the account can be extended in blocks of 5 years after maturity.
Why use a post office ppf calculator?
A calculator helps you quickly answer practical questions: how much corpus you can build, how much interest you can earn, and whether your yearly deposit is enough for your long-term goals. It also helps compare scenarios, such as contributing at the beginning versus end of the year.
- Plan for retirement or children’s education
- Understand the power of compounding
- Estimate tax-efficient long-term wealth
- Set realistic annual contribution targets
How this calculator works
This tool assumes one fixed yearly contribution and annual compounding at your selected interest rate. If you choose beginning of each year, your contribution earns interest for that year. If you choose end of each year, it starts earning from the next year in this model.
The calculator displays:
- Maturity value: final account balance at the end of chosen tenure
- Total new contributions: sum of yearly deposits made during projection
- Total interest earned: maturity minus opening balance minus new contributions
- Year-wise table: opening balance, contribution, interest, and closing balance for each year
PPF formula (conceptual)
When contribution is at beginning of year
Closing Balance = (Opening Balance + Annual Contribution) × (1 + Interest Rate)
When contribution is at end of year
Closing Balance = (Opening Balance × (1 + Interest Rate)) + Annual Contribution
This is a planning model and may differ slightly from actual credited interest depending on deposit dates, quarterly government rate revisions, and account-level rules.
Current PPF rules you should remember
- Minimum annual contribution: ₹500
- Maximum annual contribution: ₹1,50,000
- Lock-in period: 15 years
- Extension available in 5-year blocks
- Interest rate is notified by Government of India (typically revised quarterly)
- Tax treatment generally falls under EEE (subject to prevailing tax law)
Tips to maximize your PPF returns
- Try contributing early in the financial year to maximize interest accrual
- Contribute consistently every year for full compounding benefits
- Use PPF as the debt/stable component of your long-term portfolio
- Review goals every 2-3 years and adjust contribution amounts if needed
- Consider extension after 15 years if you do not need immediate withdrawal
Example scenario
Suppose you invest ₹1,50,000 per year at 7.1% for 15 years with contribution at the beginning of each year. Your maturity amount can become significantly higher than the total amount invested due to compounding. Use the calculator above and then test smaller or larger yearly deposits to see the gap.
Frequently asked questions
Is this calculator for bank PPF and post office PPF both?
Yes. PPF rules are broadly the same across authorized banks and post offices, though service experience may differ.
Does it include partial withdrawals or loans?
No. This version estimates growth for regular contributions without withdrawals or loan adjustments.
Can I invest more than ₹1.5 lakh in one year?
For PPF, the annual contribution limit is ₹1.5 lakh under current rules. This calculator validates against that range.
Final note
Use this post office ppf calculator for planning, not as legal or tax advice. Always verify latest interest rates, contribution rules, and tax provisions before making decisions.