PPF vs Fixed Deposit 2026: Which Wins for a 15-Year Savings Goal?

By Nitish Bharadwaj · Published Aug 31, 2026 · 7 min

PPF currently pays 7.1% per annum, unchanged since April 2020, and that interest is exempt from tax under Section 10(11) regardless of whether you file under the old or new regime. A comparable 5-year bank FD in August 2026 pays 6.05%–7.10% depending on the bank, but that interest is taxed every year at your slab rate, cutting its real return by a third or more in the 30% bracket. This guide compares post-tax returns, lock-in rules, liquidity, and the shared 80C limit to show which one actually fits a 15-year goal.

PPF and a bank fixed deposit both feel like the 'safe' choice for building a long-term corpus — same government or bank backing, no market risk, nothing to actively track. But once you run the actual post-tax numbers, the two aren't close substitutes for the same job. One is built to compound completely tax-free over 15 years; the other resets your tax bill every single year, no matter which regime you file under.

Two Instruments Solving Different Problems

A Public Provident Fund account is a government-backed, 15-year savings scheme meant to be locked away and forgotten — it isn't designed for money you might need next year. A fixed deposit is the opposite: tenures run from 7 days to 10 years, you choose the exact lock-in, and premature withdrawal is always possible, just at a cost. Comparing them only makes sense once you've settled on a longer-horizon goal — retirement, a child's education 15 years out, or a debt allocation you genuinely don't intend to touch — where an FD's flexibility stops being an advantage and starts being unused liquidity earning a taxed return.

The Headline Rates, August 2026

On paper, some FDs already beat PPF's 7.1%, and small finance bank FDs can beat it by a wide margin. That comparison falls apart the moment tax enters the picture — PPF's rate is what you keep; a bank FD's rate is what you're taxed on before you keep anything.

Where PPF Wins — Tax-Free Compounding, Even Under the New Regime

PPF carries what's called EEE status: the contribution can be deducted under Section 80C (old regime only), and — separately — both the annual interest and the final maturity amount are exempt from tax under Section 10(11), a provision that has nothing to do with which regime you file under. That distinction matters more than most PPF comparisons acknowledge. Move to the new tax regime and you lose the 80C deduction on your contribution, but you don't lose the exemption on the interest PPF compounds every year — it stays completely tax-free either way, and the 5th-of-the-month crediting rule determines exactly how much of that tax-free interest you earn each year. A bank FD gets no equivalent protection: its interest is added to your total income and taxed at your slab rate annually, in both regimes, whether you touch the money or not.

A Post-Tax Return Example

Say you invest ₹1.5 lakh a year for 15 years. In PPF at 7.1%, tax-free, that grows to roughly ₹40.7 lakh. Put the same amount into a 5-year FD at 6.5%, renewed three times, and taxed annually at a 30% slab rate, and the effective post-tax return drops to roughly 4.55% — compounding to somewhere around ₹32–33 lakh over the same 15 years, a gap of ₹7–8 lakh purely from the way each instrument is taxed. Drop into the 20% bracket and the FD's effective rate improves to around 5.2%, narrowing the gap — but PPF still wins on a straight tax-free-vs-taxed basis at every slab above zero.

Where FD Wins — Liquidity and Flexibility

PPF's 15-year lock-in is real: partial withdrawal only opens up from the 7th financial year, capped at a formula tied to your balance, and a loan against your PPF balance is available only between the 3rd and 6th year. A bank FD, by contrast, can be broken at any time — you lose a percentage point or two in penalty interest, but the money is accessible within a day or two. If there's any real chance you'll need this money in the next five years, an FD's liquidity is worth more than PPF's better post-tax rate, because a locked-in 7.1% you can't access when you need it isn't actually earning you 7.1% on the goal you needed it for. That's also why PPF should never double as your emergency fund — that job belongs to something you can touch within days, not years.

The Shared 80C Limit You Can't Double-Dip

PPF contributions and 5-year tax-saver FD deposits both draw from the same ₹1.5 lakh Section 80C ceiling — along with ELSS funds, life insurance premiums, and EPF contributions. Putting ₹1.5 lakh into PPF and separately expecting another ₹1.5 lakh deduction from a tax-saver FD doesn't work; they compete for the same limit, not stack on top of it. Our NSC vs PPF vs ELSS comparison breaks down how to split that ₹1.5 lakh across instruments if you're using more than one — worth reading before deciding how much of your 80C bucket PPF should actually claim.

Which One Should You Actually Choose

• Money you won't touch for 15+ years — a retirement corpus, or a child born today's higher education — PPF's tax-free compounding wins outright.
• An emergency fund or a goal inside 3–5 years — an FD's liquidity matters more than PPF's rate.
• Already maxing 80C elsewhere through EPF, ELSS, or insurance — a bank FD (post-tax, even if lower) may be simpler than fighting for room in an already-full ₹1.5 lakh limit.
• In the 30% tax bracket — the PPF-vs-FD gap is at its widest here, so the tax-free structure matters most.

Bottom Line

PPF and a bank FD only look like they're competing for the same money. Once tax enters the picture, PPF is the better instrument for a genuinely long, untouched horizon, and an FD is the better one for anything you might need access to sooner. The mistake isn't picking the 'wrong' one — it's treating either as a universal answer when the actual decision depends entirely on how long you can afford to lock the money away.