ELSS vs PPF Over 15 Years: Post-Tax IRR Math Including Section 80C And 112A Tax

India's two most popular Section 80C instruments pull investors in opposite directions. The Public Provident Fund (PPF) promises a sovereign-backed 7.1% return that is fully exempt under Section 10(11) of the Income Tax Act, while an Equity Linked Savings Scheme (ELSS) offers historically higher equity returns of 12-13% but exposes you to market risk and a Long Term Capital Gains (LTCG) tax of 12.5% above Rs 1.25 lakh under Section 112A. Both qualify for the same Rs 1.5 lakh annual deduction in the old tax regime, so the real decision turns on one question: which one leaves more money in your hand after 15 years of compounding and tax?

This is not a question of opinion. It is arithmetic, and the inputs are all published by official sources. The PPF rate of 7.1% was fixed for Q1 FY 2025-26 by the Ministry of Finance with effect from 1 April 2025. The ELSS tax structure was rewritten by Budget 2024, effective 23 July 2024, raising the LTCG rate from 10% to 12.5% and lifting the annual exemption from Rs 1 lakh to Rs 1.25 lakh. Below we run the post-tax Internal Rate of Return (IRR) math on a 15-year horizon, the maturity period of PPF, so the two compete on identical footing.

Side-by-Side Comparison

To compare like with like, assume an investor contributes the full Section 80C limit of Rs 1.5 lakh every year for 15 years, a total outlay of Rs 22.5 lakh. PPF compounds at the current 7.1% annual rate, while ELSS is modelled across three equity-return scenarios because, unlike PPF, equity returns are never guaranteed and the Securities and Exchange Board of India (SEBI) mandates that past performance disclaimers accompany every projection.

The structural differences matter as much as the rate. PPF carries a hard 15-year lock-in with partial withdrawals permitted only from the seventh year, whereas each ELSS instalment is locked for just 3 years from its date of investment, the shortest lock-in of any Section 80C product.

Running the numbers on a Rs 1.5 lakh annual contribution produces the following terminal-wealth outcomes. The PPF figure is exact because its 7.1% rate is fixed and its maturity is tax-free; the ELSS figures are post-tax, assuming a single redemption at year 15 with the Rs 1.25 lakh LTCG exemption applied once.

The break-even is revealing. ELSS only needs to compound at roughly 8% to match PPF's tax-free 7.1% after the 12.5% LTCG levy bites. At the historical equity benchmark range of 12-13%, the post-tax IRR climbs to about 11%, leaving the investor with Rs 51.90 lakh versus PPF's Rs 37.99 lakh, a difference of nearly Rs 14 lakh on the same Rs 22.5 lakh invested. You can reproduce these projections using our ELSS calculator and PPF calculator, or model a staggered monthly approach with the SIP calculator.

A subtle point that flatters ELSS further: because each instalment unlocks after 3 years, a disciplined investor can harvest gains annually against the fresh Rs 1.25 lakh Section 112A exemption that resets every financial year, shrinking the eventual tax bill well below the lump-sum figures above. PPF offers no such tax-harvesting lever because there is nothing to harvest before maturity.

Tax Treatment

The tax divergence is the single biggest driver of the post-tax gap, and it operates at three stages: entry, accrual, and exit. At entry, both instruments deliver an identical Section 80C deduction of up to Rs 1.5 lakh, but only in the old tax regime. Under the new regime that applies by default from FY 2025-26, Section 80C is unavailable, so neither product offers an upfront deduction and the comparison shifts purely to returns and exit tax.

During the holding period, PPF interest accrues entirely tax-free under Section 10(11) of the Income Tax Act, with the 7.1% credited annually and never entering your taxable income. ELSS, being an equity mutual fund, pays no tax on unrealised gains either, but any dividends opted for under the Income Distribution cum Capital Withdrawal (IDCW) option are taxable at slab rate, which is why the growth option is the standard recommendation for the 30% slab investor.

At exit, the divide is sharpest. PPF maturity proceeds are wholly exempt, so a Rs 37.99 lakh corpus is received intact. ELSS gains are taxed as LTCG under Section 112A: the first Rs 1.25 lakh of gains in a financial year is exempt, and the balance is taxed at a flat 12.5% with no indexation, the rate set by Budget 2024 with effect from 23 July 2024. Short-term redemptions, meaning ELSS units sold within 12 months, would attract STCG at 20% under Section 111A, though the 3-year lock-in makes short-term sales impossible for ELSS by design.

One nuance for high earners: the surcharge on capital gains is capped at 15% for ELSS LTCG even where total income exceeds Rs 2 crore, and the maximum surcharge in the new regime is capped at 25%. A 4% health and education cess applies on the tax plus surcharge in both regimes. For most investors below the Rs 50 lakh income threshold, no surcharge applies at all, so the headline 12.5% LTCG rate plus 4% cess is the effective exit cost.

Who Should Pick Which

The IRR table makes ELSS look like the obvious winner, but post-tax return is only one axis. The right choice depends on your tax regime, risk appetite, time horizon, and the role the money plays in your plan.

Choose PPF if you are in the new tax regime and want certainty. With Section 80C gone in the new regime from FY 2025-26, PPF's appeal narrows to its risk-free 7.1% tax-free return, which is still attractive on a tax-equivalent basis: a 30% slab investor would need a fully taxable instrument yielding about 10.1% pre-tax to match PPF's 7.1% net. For an investor who cannot tolerate seeing a corpus fall 20-30% in a bad equity year, PPF's sovereign guarantee is worth the lower ceiling. The hard 15-year lock-in also enforces discipline that suits retirement-bucket money you genuinely will not touch.

Choose ELSS if you are in the old regime, have a 7-year-plus horizon, and can stomach volatility. The 3-year lock-in is the shortest among Section 80C options, the post-tax IRR of around 11% at historical returns beats PPF by nearly Rs 14 lakh over 15 years, and the annual Rs 1.25 lakh LTCG exemption lets you harvest gains tax-efficiently. ELSS suits younger investors with decades of compounding ahead and the temperament to ignore short-term drawdowns.

Blend both for most middle-income households. A common allocation splits the Rs 1.5 lakh Section 80C limit, directing Rs 50,000 to Rs 1 lakh into PPF as a debt anchor and the balance into ELSS for the equity kicker. This caps downside while capturing most of the equity upside, and it lets you rebalance as you approach the goal. If you are also building a retirement corpus, compare these against the NPS calculator, since NPS adds an extra Rs 50,000 deduction under Section 80CCD(1B). Section 80CCD(1B) is not allowed in the new regime; it can be claimed only in the old regime. For broader wealth-building beyond Section 80C, our coverage of direct versus regular plans and the SEBI MF Lite framework for passive AMCs explains how to keep expense drag low on the ELSS side.

A final consideration is interest-rate risk on PPF. The 7.1% rate is reset quarterly by the Ministry of Finance and has ranged from 7.1% to 8% over the past decade; it is not locked for your full 15-year tenure the way a fixed deposit rate is for its term. ELSS returns are uncertain but historically have outpaced inflation more reliably over 15-year windows, per AMFI benchmark index data.

FAQ

Is ELSS always better than PPF over 15 years?

No. Our math shows ELSS needs to compound at roughly 8% to beat PPF's tax-free 7.1% after the 12.5% LTCG tax. At the historical equity range of 12-13%, ELSS delivers a post-tax IRR near 11% versus PPF's 7.1%, but equity returns are not guaranteed and SEBI requires that past performance not be read as a promise of future results. In a poor 15-year equity stretch, ELSS could underperform PPF.

Can I claim Section 80C on both PPF and ELSS in the same year?

Yes, but the combined deduction is capped at Rs 1.5 lakh per financial year under Section 80C, and only in the old tax regime. If you invest Rs 1 lakh in ELSS and Rs 1 lakh in PPF, you can claim only Rs 1.5 lakh total, not Rs 2 lakh. The new regime, default from FY 2025-26, offers no Section 80C deduction at all.

How is ELSS taxed when I redeem after the 3-year lock-in?

Gains qualify as LTCG under Section 112A. The first Rs 1.25 lakh of gains in a financial year is exempt, and the balance is taxed at a flat 12.5% without indexation, the rate effective from 23 July 2024 under Budget 2024. A 4% cess applies on the tax. Selling within 12 months would trigger 20% STCG under Section 111A, but the 3-year lock-in prevents this.

Is PPF maturity completely tax-free?

Yes. PPF falls under the Exempt-Exempt-Exempt category: contributions earn a Section 80C deduction in the old regime, the 7.1% annual interest is exempt under Section 10(11), and the maturity corpus is received tax-free. There is no LTCG or any other tax on PPF proceeds.

What return assumption is realistic for ELSS?

Budget and AMFI benchmark data suggest diversified equity has historically delivered 12-13% over long horizons, but this is descriptive, not a forecast. We model 8%, 10%, and 12% scenarios precisely because returns vary; the 8% case is a deliberately conservative stress test that still roughly matches PPF after tax.

Does the new tax regime change this comparison?

Significantly. Under the new regime from FY 2025-26, Section 80C is unavailable, so neither PPF nor ELSS offers an entry deduction. The comparison then rests purely on returns and exit tax, where ELSS's higher historical return and PPF's tax-free maturity remain the deciding factors. Note that Section 80CCD(1B) is not allowed in the new regime; the NPS deduction it provides can be claimed only in the old regime.

Can I withdraw PPF before 15 years if I need the money?

Partial withdrawals are allowed from the seventh financial year, capped at 50% of the balance at the end of the fourth preceding year. A premature full closure is permitted after five years only for specified reasons such as serious illness or higher education, with a 1% interest penalty. ELSS, by contrast, is fully liquid after its 3-year lock-in.