PPF Calculator
Developed by Hemant Parashar, B.Sc.Calculate interest earned and maturity amounts for Indian Public Provident Fund (PPF) deposits.
Government Savings Disclaimer
PPF interest rates are decided quarterly by the Ministry of Finance, Government of India. Historic rates are used as baseline projections. Tax exemptions are subject to prevailing Income Tax Act provisions (Section 80C).
PPF Savings Details
PPF Projection Summary
How to Use the PPF Calculator
The Public Provident Fund (PPF) is a popular tax-exempt savings avenue introduced by the National Savings Institute in India. Follow these guidelines:
- Input the amount you intend to deposit annually (depositing before the 5th of April gives you maximum interest).
- Verify the interest rate (pre-filled with the current rate of 7.1%).
- Choose a tenure (default is 15 years, the mandatory minimum lock-in period).
PPF Interest Formula
Interest is computed monthly on the lowest balance in your account between the 5th day and the last day of the month, but it is credited to your balance annually. The formula representing annual deposits compounding is:
Where:
- A: Maturity Amount.
- P: Annual investment installment.
- r: Annual interest rate.
- n: Number of financial years (15–50).
Frequently Asked Questions (FAQ)
Q: What is the lock-in period for PPF?
A: PPF accounts have a mandatory lock-in period of 15 fiscal years. After that, accounts can be extended in blocks of 5 years with or without fresh contributions.
This tool was developed and verified by Hemant Parashar, B.Sc. Graduate and part-time blogger, to provide free, high-accuracy mathematical resources for educational use.