Govt Schemes & Safety • 8 min read • Updated for FY 2025–2026

Public Provident Fund (PPF): The Definitive 15-Year Compounding Manual

Master the 5th-day monthly deposit rule, 5-year extension blocks, partial withdrawal thresholds, and triple tax-free wealth accumulation.

VG
Vitta Ganak Financial Modeling Team
Reviewed for SEBI, RBI & Budget 2024 Compliance
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1. The Sovereign Gold Standard of Indian Savings

Established under the Public Provident Fund Act of 1968, PPF remains the premier risk-free savings avenue for Indian citizens. Backed directly by the sovereign guarantee of the Government of India, it carries zero credit risk and zero market volatility.

2. The EEE (Exempt-Exempt-Exempt) Superpower

Very few financial instruments in India enjoy true EEE tax status under the Income Tax Act:

  1. Exempt at Contribution: Deposits qualify for deduction under Section 80C up to ₹1,50,000 per financial year.
  2. Exempt during Accrual: Annual compounding interest credited to the account is completely free of income tax.
  3. Exempt at Maturity: The entire accumulated corpus withdrawn upon maturity is 100% tax-free.

3. The Secret: The "5th-Day Rule"

According to PPF scheme rules, interest for each calendar month is computed on the minimum balance between the close of the 5th day and the last day of the month.

Strategy Tip: If you deposit ₹1,50,000 on April 6th, you lose an entire month's interest! By depositing on or before April 5th, your entire lump sum earns compounding interest for all 12 months of the financial year.
Interactive Companion Tool

Calculate Your 15-Year PPF Maturity Corpus

Simulate annual deposits up to ₹1.5 Lakhs and generate your complete year-by-year PPF ledger table.

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Frequently Asked Questions

What is the current interest rate on PPF?

PPF currently earns 7.1% per annum, compounded annually and backed by 100% sovereign Government of India guarantee.

What is the 5th-day rule in PPF?

Interest is calculated on the minimum balance between the close of the 5th day and the end of the month. Depositing on or before the 5th day ensures you earn interest for that full month.

Can PPF be extended beyond 15 years?

Yes. PPF can be extended indefinitely in blocks of 5 years, with or without making further contributions.