PPF Extension After 15 Years: How ₹1.5 Lakh Grows in a 5-Year Block

Fifteen years is a long time to feed a savings account. If you opened your Public Provident Fund (PPF) around 2010 and it has just matured, you're probably staring at a corpus north of ₹40 lakh and wondering: Do I take the money out, or leave it in? Most Indians do neither deliberately — they let the account go dormant, or worse, withdraw everything and shove it into a taxable fixed deposit. Both moves quietly cost you lakhs.

Here's the surprising bit: after 15 years, your PPF turns into one of the best fixed-income instruments in the country — a fully tax-free vehicle you can extend in 5-year blocks, indefinitely, either with fresh contributions or without a single rupee more. At the current 7.1% rate (compounded annually and exempt under Section 80C on the way in, exempt on growth, exempt on withdrawal — the rare EEE status), a matured PPF is hard to beat for the safe portion of your portfolio.

This article walks you through exactly what happens at maturity, how the two extension options work, and shows with real ₹ math how a ₹1.5 lakh annual contribution keeps snowballing in a fresh 5-year block. By the end you'll know precisely which choice fits your situation — and how to execute it without tripping over the paperwork.

Key Takeaways

• A PPF matures 15 financial years after the year it was opened — and you're not forced to withdraw. You can extend in blocks of 5 years, any number of times.
• You have three choices at maturity: close and withdraw, extend WITHOUT contributions (corpus keeps compounding tax-free), or extend WITH contributions (keep depositing up to ₹1.5 lakh/year).
• Extending with contributions requires Form H, submitted within one year of maturity — miss the window and you're locked into the no-contribution mode.
• In the no-contribution mode, you can withdraw any amount, once per financial year, while the balance keeps earning 7.1% tax-free.
• A ₹40 lakh corpus left untouched at 7.1% grows to roughly ₹56.4 lakh in a single 5-year block — completely tax-free.
• PPF interest beats most bank FDs on a post-tax basis for anyone in the 20% or 30% slab.

When does a PPF account actually mature?

This trips up nearly everyone. PPF maturity is counted in financial years, not from the exact date you opened it. The rule: the account matures after the expiry of 15 full financial years from the end of the financial year in which you made your first deposit.

Say you opened your account and deposited on 10 July 2010. That falls in FY 2010–11. The 15-year clock starts from the end of that FY (31 March 2011). Fifteen years later takes you to 1 April 2026 — that's when your account matures, not July 2025. Small distinction, big consequence: you actually get one extra deposit year than most people assume.

You can confirm the exact figures for your own account by running your opening year and annual deposits through our PPF Calculator. It handles the FY-based compounding correctly, which a generic Compound Interest Calculator won't do out of the box.

What are your three choices at PPF maturity?

Once the account matures, the rules give you exactly three doors. Choosing the right one depends on whether you still need this money for your emergency corpus, whether you want a tax-free income stream, and how much fresh cash you can spare each year.

Option 1: Close the account and withdraw everything

You take the full corpus, tax-free, and the account shuts. Simple. This makes sense only if you have an immediate large goal — a home down payment, a child's education abroad, funding retirement drawdown. Otherwise you're surrendering an EEE instrument for a taxable alternative.

Option 2: Extend WITHOUT further contributions

This is the default if you do nothing. The corpus stays parked and keeps earning the prevailing PPF rate (currently 7.1%), compounded annually, still tax-free. You can withdraw any amount once per financial year — no upper limit beyond your balance. Think of it as a tax-free, government-backed savings account that you can dip into once a year.

Option 3: Extend WITH contributions

You keep the account alive and continue depositing up to ₹1.5 lakh per year, claiming Section 80C deduction (if you're on the old tax regime) and earning tax-free interest. The catch: you can withdraw only up to 60% of the balance that stood at the start of the extension block, spread across the 5 years. To choose this option you must submit Form H at your bank or post office within one year of maturity.

Common mistake: Depositing fresh money into a matured PPF account without submitting Form H first. If you contribute before formalising the "extension with contributions", those deposits become irregular — they earn no interest and get no 80C benefit. Always file Form H first, then deposit.

PPF extension after maturity: how ₹1.5 lakh grows in a 5-year block

Let's put real numbers on this. This is where the PPF extension after maturity decision either makes or costs you serious money.

Meet Anita, a 52-year-old salaried professional in Pune. She opened her PPF in FY 2010–11 and contributed the full ₹1.5 lakh every year. Her corpus at maturity is approximately ₹40.68 lakh (assuming an average 7.6% over those 15 years, which is close to the actual historical average). She's on the old tax regime and still has surplus cash. She chooses Option 3 — extend with contributions and keeps depositing ₹1.5 lakh at the start of each year (best practice — before 5 April, so the full year earns interest).

Here's the year-by-year math at the current 7.1%, with the ₹1.5 lakh deposited on 1 April each year:

Year	Opening balance (₹)	+ Contribution (₹)	+ Interest @7.1% (₹)	Closing balance (₹)
1	40,68,000	1,50,000	2,99,478	45,17,478
2	45,17,478	1,50,000	3,31,341	49,98,819
3	49,98,819	1,50,000	3,65,516	55,14,335
4	55,14,335	1,50,000	4,02,118	60,66,453
5	60,66,453	1,50,000	4,41,318	66,57,771

After one 5-year block, Anita's corpus grows from ₹40.68 lakh to roughly ₹66.58 lakh. Over those five years she deposited ₹7.5 lakh of her own money and earned about ₹18.4 lakh in interest — entirely tax-free. To an investor in the 30% slab, matching that after tax in an FD would require a pre-tax yield well above 10%.

Now compare Option 2 (no contributions). Take Anita's brother Ravi, same ₹40.68 lakh corpus, but he stops depositing and just lets it ride at 7.1%:

• Year 1: ₹40,68,000 × 1.071 = ₹43,56,828
• Year 2: ₹46,66,163
• Year 3: ₹49,97,461
• Year 4: ₹53,52,281
• Year 5: ₹57,32,293

Ravi ends with about ₹57.32 lakh without putting in a single extra rupee — a tax-free gain of ₹16.6 lakh purely on compounding. That's the quiet power of leaving a large corpus alone in an EEE instrument.

Want to model your own opening year, contribution amount and extension blocks? Plug the figures into the PPF Calculator, and use the Inflation Calculator to check what that future corpus is worth in today's rupees.

PPF extension vs FD vs debt fund: which wins for the safe money?

Once your PPF matures, the temptation is to move it to an FD "for liquidity". Let's stress-test that. Assume ₹40 lakh, a 5-year horizon, and an investor in the 30% tax slab.

Instrument	Assumed rate	Taxation	Post-tax value after 5 yrs (₹)	Liquidity
PPF (extended, no contribution)	7.1% (tax-free)	EEE — nil	~57.3 lakh	Once/year withdrawal
5-yr Bank FD	7.0% (pre-tax)	Slab rate (30%)	~50.7 lakh	Premature (with penalty)
SCSS (if eligible, 60+)	8.2% (pre-tax)	Slab rate (30%)	~51.8 lakh	After lock-in
Debt mutual fund	7.0% (assumed)	Slab rate (post-Apr'23)	~50.7 lakh	High (T+1)

The gap is stark. A tax-free 7.1% comfortably beats a taxable 7–8% for anyone above the 20% slab. The only real trade-off is liquidity — PPF allows just one withdrawal per financial year in extension mode. If you can live with that, the extended PPF is arguably the best low-risk parking spot in the Indian market.

If you're 60+, it's worth reading our detailed comparison, SCSS vs Senior Citizen FD: Where ₹30 Lakh Earns More in 2026, before deciding — SCSS's 8.2% can edge ahead for those in lower slabs, and you can hold both.

How to extend your PPF account: a step-by-step walkthrough

Here's the exact process, whether your account is with a bank (SBI, HDFC, ICICI) or the post office.

1. Note your maturity date correctly. Count 15 full financial years from the end of the FY of your first deposit. Confirm with your passbook or net-banking PPF statement.
2. Decide which mode you want — no-contribution (do nothing) or with-contribution (needs Form H). Use the worked examples above to see the corpus difference.
3. For extension WITH contributions: obtain Form H (Form 4 under the 2019 PPF Scheme rules) from your bank/post office or download from the bank's website.
4. Submit Form H within one year of the maturity date. This is the hard deadline. In a bank, many now allow this through net banking or a branch visit; post office requires the physical form.
5. Get written/stamped acknowledgement. Keep a copy — banks occasionally lose these, and you'll want proof the account is in "extension with subscription" status.
6. Resume deposits (only after Form H is accepted). Deposit up to ₹1.5 lakh per FY, ideally before 5 April so the entire year earns interest.
7. For extension WITHOUT contributions: do nothing. The account auto-continues in this mode. But don't deposit — any deposit in this mode is treated as irregular and earns no interest.

Pro tip: PPF interest is calculated on the lowest balance between the 5th and last day of each month. So a deposit made on 4 April earns interest for that entire month; one made on 6 April loses a month's interest. For lump-sum annual contributors, always deposit on or before 5 April. On a ₹1.5 lakh deposit, that one-day timing can be worth several thousand rupees over a block.

Who should choose which option?

There's no universal answer — it depends on your age, cash flow and goals.

• Still earning, old tax regime, surplus cash: Extend with contributions. You get 80C deduction plus tax-free compounding — the best of both.
• Retired or on the new tax regime (no 80C benefit): Extend without contributions. There's no deduction to chase, so keep the money liquid-ish while it compounds tax-free, and deploy fresh savings elsewhere.
• Need the money for a near-term goal: Close and withdraw. Don't romanticise the account — a matured home loan prepayment or clearing a high-interest loan may beat 7.1%. Check the impact with our Home Loan Prepayment Calculator.
• Want to build a tax-free retirement income ladder: Extend without contributions and take one measured withdrawal each year as pseudo-pension, while the balance keeps growing.

If you're on the new regime and reassessing where your 80C-style money should go, it's worth comparing PPF against equity. Our piece on Small Cap vs Large Cap: How ₹5,000 SIP Fares in a Volatile Market and the SIP Calculator will help you frame the risk-return trade-off.

Common mistakes that quietly cost PPF holders lakhs

• Assuming maturity = the exact 15th anniversary date. It's FY-based. Many withdraw a year early or miss the Form H window because of this.
• Depositing without filing Form H. The money sits idle, earning zero.
• Withdrawing everything and moving to a taxable FD. As the comparison table shows, you often lose ₹6–7 lakh over five years on a ₹40 lakh corpus after tax.
• Forgetting the once-a-year withdrawal limit in extension mode. Plan large expenses so they fall in the same financial-year withdrawal.
• Ignoring the 60% withdrawal cap in the with-contribution mode. If you'll need heavy liquidity, the no-contribution mode is more flexible.

Frequently Asked Questions

Can I extend my PPF account indefinitely after 15 years?

Yes. There's no limit on the number of 5-year extension blocks. You can keep extending for life, with or without contributions, as long as you follow the rules for each block.

Is PPF interest still tax-free after extension?

Absolutely. PPF retains its EEE status through every extension. The interest earned and the final withdrawal remain fully exempt from income tax, whether or not you continue contributing.

What is the deadline to submit Form H for PPF extension with contributions?

You must submit Form H (Form 4 under the current scheme) within one year from the date of maturity. Miss it, and your account is automatically treated as extended without contributions — you can no longer deposit fresh money.

How much can I withdraw from an extended PPF account?

In the no-contribution mode, you can withdraw any amount, once per financial year. In the with-contribution mode, total withdrawals across the 5-year block are capped at 60% of the balance at the start of the block.

Should I extend PPF or invest in an FD after maturity?

For anyone in the 20% or 30% tax slab, extending PPF usually wins because 7.1% tax-free beats a taxable 7–7.5% FD on a post-tax basis. FDs make sense mainly if you need frequent liquidity or you're in the zero-tax bracket.

Does extending PPF affect my Section 80C limit?

Only if you extend with contributions and are on the old tax regime — deposits up to ₹1.5 lakh a year still qualify for 80C. Under the new regime there's no 80C deduction, so the deduction angle is irrelevant. Check your tax outgo either way with our Income Tax Calculator.

Can I open a new PPF instead of extending the old one?

An individual can hold only one PPF account. Extending your existing account keeps the compounding on a large base intact, which is far more powerful than starting fresh from zero.

The bottom line

Your matured PPF is not a finish line — it's a fork in the road. Handled well, a PPF extension after maturity lets a large corpus keep compounding tax-free at 7.1%, either passively (no contributions, maximum flexibility) or actively (with contributions and a fresh 80C benefit if you're on the old regime). Anita's account grew to ₹66.6 lakh with contributions; Ravi's touched ₹57.3 lakh doing nothing at all. Both crushed a post-tax FD.

The one thing you must not do is drift. Mark your true FY-based maturity date, decide your mode consciously, and if you want to keep contributing, get Form H filed within the year. Do that, and the government keeps handing you tax-free compounding for as long as you like.

Before you finalise, run your exact numbers through the PPF Calculator, compare against a lump-sum equity route with the Lumpsum Investment Calculator, and explore the full suite of free financial calculators on AlarmDaddy. If you're planning for a child's future, our guide to Sukanya Samriddhi at 8.2% pairs beautifully with a well-managed PPF. Questions about your specific case? Reach out via our contact page or learn more about AlarmDaddy.

Image credit: car-finance-after-GFC — natloans, via flickr (BY-ND 2.0), sourced from Openverse.