PPF Explained: Eligibility, Interest Rate, Tax Benefits and How It Compares to NPS

The Public Provident Fund (PPF) is a government-backed long-term savings scheme that's stayed popular for one specific reason: it's one of the few investment options left in India that's genuinely tax-free at every single stage — what you put in, what it earns, and what you eventually take out. That's the "EEE" (Exempt-Exempt-Exempt) tax treatment, and it's rarer than it sounds, since many other tax-saving instruments are exempt on contribution but taxed on withdrawal or on the gains. The tradeoff for that full tax exemption is a genuine 15-year lock-in and a government-set interest rate that moves independently of the stock market, which is exactly why the "is PPF still worth it compared to NPS or equity-linked options" question comes up so often. This covers how PPF actually works, current eligibility and contribution rules, the tax treatment in detail, partial withdrawal and loan provisions, and a direct comparison with NPS.

What PPF actually is

PPF is a savings scheme where you deposit money into a dedicated PPF account — opened at a bank or post office — and that money earns a fixed interest rate set by the government, reviewed and announced quarterly. It has a 15-year tenure from the date of account opening, extendable in blocks of 5 years after that if you choose to continue, and the return is not linked to equity markets at all — your balance grows purely by the declared interest rate compounding annually, which makes it a genuinely low-volatility, predictable savings instrument rather than a growth-oriented investment.

Who can open a PPF account

• Any resident individual Indian citizen can open a PPF account in their own name.
• A parent or legal guardian can open and operate a PPF account on behalf of a minor child.
• Only one PPF account is allowed per individual (excluding a separate account opened on behalf of a minor) — opening more than one in your own name isn't permitted, and only the first account continues to earn interest if a second is discovered.
• Non-Resident Indians (NRIs) cannot open a new PPF account, though an account opened while the individual was still a resident can generally continue until maturity under specific rules — this is a detail worth confirming directly with your bank or post office if your residency status changes.

Contribution limits and rules

• Minimum annual contribution: ₹500, required to keep the account active for the financial year.
• Maximum annual contribution: ₹1,50,000 per financial year — contributions beyond this limit don't earn interest and aren't eligible for the tax deduction.
• Contributions can be made in a lump sum or in up to 12 instalments within a financial year — there's no requirement to contribute monthly if a single annual deposit suits you better.
• Interest is calculated monthly on the lowest balance between the 5th and the last day of the month, but credited to the account annually — which is why depositing before the 5th of a month, rather than later, makes a genuine difference to the interest earned for that month.

The EEE tax treatment, explained precisely

PPF's tax treatment is exempt at all three stages, and it's worth being precise about what each stage actually means rather than treating "tax-free" as one vague claim. Contributions up to ₹1,50,000 per year qualify for deduction under Section 80C of the Income Tax Act — this is the same overall ₹1.5 lakh 80C limit shared with other instruments like ELSS, life insurance premiums and NPS's base 80C contribution, not an additional separate limit. The interest earned every year is entirely exempt from tax, with no upper cap on the exempt interest amount, unlike some other savings instruments where interest beyond a threshold becomes taxable. And the maturity amount — your full accumulated balance including all the compounded interest — is exempt from tax on withdrawal at maturity as well. That third stage is the one that sets PPF apart from several other tax-saving options: many instruments are exempt going in but taxed on the way out; PPF genuinely isn't taxed at either end, or in between.

The 15-year lock-in, and what "extending" actually means

A PPF account matures 15 years after it was opened, and full withdrawal of the entire balance is only available at that point (subject to the partial withdrawal and loan provisions covered below during the lock-in itself). At maturity, you have three real choices: withdraw the full amount and close the account, extend the account for a further block of 5 years while continuing to make contributions, or extend for a further 5-year block without making any further contributions, letting the existing balance keep earning interest passively. This extension can be repeated in further 5-year blocks indefinitely if you choose, which is part of why PPF is often used as a genuinely long-horizon retirement-adjacent savings vehicle rather than a medium-term one.

Premature closure: the narrow exceptions to the 15-year lock-in

Separate from the partial withdrawal and loan provisions, PPF also allows premature closure of the entire account — but only after the account has completed 5 financial years, and only for a narrow set of specifically defined reasons rather than at the account holder's general discretion. The commonly recognised grounds are: life-threatening medical treatment for the account holder, their spouse, dependent children or parents, with supporting documentation; higher education expenses for the account holder or a dependent child, against confirmation of admission to a recognised institution; or a change in the account holder's residency status (becoming an NRI), on production of the relevant documentation. Premature closure under these grounds typically comes with a reduced interest rate for the account's full tenure — generally 1% lower than the rate the account would otherwise have earned — as a deliberate deterrent against treating this as a routine early-exit option rather than a genuine hardship or life-event provision. This is meaningfully more restrictive than the partial withdrawal facility covered above, and worth understanding as a distinct, narrower mechanism rather than assuming it's freely available whenever funds are needed.

Partial withdrawal and loan provisions during the lock-in

PPF isn't fully illiquid for the entire 15 years — two provisions give you access to funds before maturity, though both are more restrictive than simply withdrawing at will. From the 7th financial year onward, one partial withdrawal per year is allowed, capped at the lower of 50% of the balance at the end of the 4th year preceding the withdrawal year, or 50% of the balance at the end of the immediately preceding year — a formula that looks fiddly but exists specifically to prevent large early withdrawals against a balance that's grown mostly toward the end of the period. Separately, a loan against the PPF balance is available between the 3rd and 6th financial years (a narrower window than partial withdrawal), up to 25% of the balance at the end of the 2nd year preceding the loan application, at an interest rate set relative to the PPF rate itself. Both provisions matter mainly for genuine emergencies — PPF isn't designed to function as a flexible, frequently-accessed savings account.

How the interest rate is set, and why it isn't fixed for the full 15 years

Unlike a fixed deposit locked at a rate for its entire term, PPF's interest rate is reviewed and announced quarterly by the government, which means the rate you earn can change from quarter to quarter over your account's 15-year life, tracking broader government bond yields and policy rather than staying fixed at whatever rate was in effect when you opened the account. This is worth knowing precisely because it means PPF's long-term return isn't fully predictable at the outset the way a fixed-rate instrument's would be — it's low-volatility and government-backed, but not literally fixed-rate for the full tenure. Checking the current quarter's declared rate directly through your bank, post office or the official government notification is the reliable way to know what you're earning right now, rather than assuming whatever rate was quoted when you first opened the account still applies.

PPF vs NPS: the real differences

• Tax treatment — PPF is EEE (exempt at contribution, growth and withdrawal). NPS is EET for most of the corpus: contributions are deductible (with an extra ₹50,000 available under Section 80CCD(1B) beyond the shared 80C limit), growth is exempt, but at maturity only up to 60% can typically be withdrawn tax-free as a lump sum — the remaining 40% must go into an annuity, and the pension income from that annuity is then taxable as regular income.
• Returns — PPF's return is a government-declared fixed rate, reviewed quarterly, with no market exposure. NPS returns depend on the asset allocation you choose (equity, corporate bonds, government securities), meaning genuinely higher long-term growth potential but real market-linked volatility along the way, especially in the equity component.
• Lock-in — PPF matures at 15 years, extendable after that. NPS is locked in until retirement age (with limited, specific early-exit provisions), and even at maturity a portion is mandatorily annuitized rather than fully liquid.
• Contribution limit — PPF caps annual contributions at ₹1,50,000. NPS has no similar hard annual cap on total contributions, though the tax-deductible portion is what's capped (the shared 80C limit, plus the additional ₹50,000 under 80CCD(1B)).
• Risk and control — PPF is effectively risk-free (government-backed, fixed declared rate) with no investment choices to manage. NPS gives you control over asset allocation between equity and debt, which means both more growth potential and genuine market risk that PPF simply doesn't carry.

Which one actually fits your situation

These aren't strictly either/or in practice, and a meaningful share of people use both, since they solve somewhat different problems within the same overall 80C-and-beyond tax-saving picture. PPF fits well as the genuinely safe, fully tax-free portion of a long-term savings plan — the piece where you specifically don't want market exposure and want certainty about the eventual tax-free payout. NPS fits well for someone specifically building a retirement corpus who wants some market-linked growth potential and is willing to accept that a portion of the eventual payout is mandatorily annuitized (and that pension income taxed) rather than a single fully tax-free lump sum. A common practical approach is using PPF for a stable, fully tax-free base and NPS (or other equity-linked instruments) for the growth-oriented portion of a long-term plan — rather than treating the choice as picking exactly one over the other.

How to open a PPF account

1. Choose where to open it — most major banks and post offices offer PPF accounts, and many banks also support opening one online through net banking if you're already a customer.
2. Fill in the PPF account opening form, providing identity and address proof (Aadhaar and PAN are commonly required) and a passport-size photograph.
3. Make the initial deposit — at least ₹500 to activate the account, and up to ₹1,50,000 for the financial year if you're contributing the full amount upfront.
4. Keep the passbook or note the account details provided, since these are what you'll use for subsequent deposits and any future partial withdrawal or loan applications.
5. Set a habit or reminder to deposit before the 5th of a month when making periodic contributions, since interest for that month is calculated on the balance as of the 5th, not the last day.

Common mistakes

• Depositing after the 5th of the month out of habit, and losing that month's interest calculation on the deposited amount as a result — a small, easily avoidable timing mistake that adds up over 15 years.
• Opening a second PPF account (sometimes unintentionally, at a different bank), not realizing only the first account continues earning interest once the duplicate is identified.
• Assuming PPF is fully liquid like a savings account — the partial withdrawal and loan provisions are real but narrow and formula-capped, not a general-purpose emergency fund substitute.
• Not accounting for PPF's contribution using up the entire shared ₹1.5 lakh 80C limit, then being surprised that other 80C investments (ELSS, insurance premiums) have no room left under the same annual cap.
• Forgetting to actively choose an option at maturity (withdraw, extend with contributions, extend without) — inaction at the 15-year mark doesn't automatically produce the outcome you'd have picked deliberately.

The short version: PPF is a government-backed, fully tax-exempt-at-every-stage savings scheme with a 15-year lock-in, a quarterly-reviewed fixed interest rate, and a ₹1,50,000 annual contribution cap shared with your broader 80C limit. It's the safe, fully tax-free layer of a long-term plan — not a market-linked growth instrument like NPS, which trades some of that certainty and full tax exemption for real growth potential and investment control. Most people building a genuinely long-term financial plan end up using some combination of the two rather than picking a single one exclusively.