How It Works: The Taxation vs Growth Battle
The debate between the Public Provident Fund (PPF) and Equity Mutual Funds (SIP) is essentially a battle between Tax-Free Safety and Taxable Aggressive Growth over a long-term (15-year) timeline.
The Power of "EEE" Status
PPF is the undisputed king of fixed income because of its EEE (Exempt-Exempt-Exempt) tax status. The money you invest is tax-free (Section 80C), the interest earned every year is tax-free, and the massive final corpus you withdraw at Year 15 is 100% tax-free. Our calculator models its strict annual compounding cycle.
The Alpha of Equity
Despite being fully taxable, Equity SIPs generally obliterate PPF returns over 15 years. Long-Term Capital Gains (LTCG) on equity mutual funds are taxed at 12.5% (with an initial exemption of ₹1.25 Lakhs per year). Even after explicitly deducting this 12.5% tax from your final profits, a 12% mutual fund will yield substantially more liquid wealth than a 7.1% tax-free PPF due to the mathematical spread of compounding returns.