PPF Calculator 2026: Maturity, Interest and 80C Tax Savings

Why PPF Remains the Bedrock of Indian Savings

The Public Provident Fund has been quietly building middle-class wealth in India since 1968, and even in 2026, with a dizzying array of mutual funds and market-linked products on offer, it remains the single most trusted long-term savings instrument for crores of families. The reasons are simple: it

is backed by a sovereign guarantee, so your money carries zero credit risk, it pays a steady 7.1 percent tax-free, and every rupee of interest and maturity is exempt from income tax. For anyone who wants a guaranteed, worry-free foundation under their retirement plan, PPF is genuinely hard to beat, and it pairs naturally with riskier growth assets held elsewhere.

Yet most account holders leave money on the table. They deposit at the wrong time of the month, they do not understand how the 5-year extensions can multiply their corpus, and they treat the 15-year lock-in as a wall rather than a springboard.

This calculator is built to fix exactly those blind spots, showing not just a maturity number but the year-by-year growth, the cost of poor deposit timing, and the dramatic difference the extension phase makes. Armed with these, you can squeeze noticeably more out of the same deposits.

What EEE Status Really Means

PPF enjoys the rare Exempt-Exempt-Exempt tax treatment, and understanding it is the key to appreciating the scheme. Exempt at the first stage means your contribution, up to 1.5 lakh a year, is deductible under Section 80C, reducing your taxable income. Exempt at the second stage means the interest that accrues every year is completely tax-free, with no TDS and nothing to declare in your return.

Exempt at the third stage means the entire maturity amount, principal plus all the accumulated interest, lands in your account without a rupee of tax. Very few instruments in India offer all three exemptions together, and none combine them with a sovereign guarantee the way PPF does, which is why it remains a default recommendation for cautious savers.

The Deposit Timing Trick That Most People Miss

Here is the single most actionable PPF insight, and the one almost no calculator bothers to show. The interest on your PPF account is calculated every month on the lowest balance in the account between the 5th and the last day of that month. This one rule has a direct consequence for when you should deposit, and it is easily the most overlooked detail in the entire scheme despite being trivially easy to act on.

Deposit Before the 5th, Always

If you deposit before the 5th of the month, that fresh money is part of the balance for the whole of that month, so it earns interest for the month. If you deposit on the 6th or later, the lowest balance between the 5th

and month end does not include your new deposit, so you lose a full month of interest on it. Repeat that mistake every month for years and the lost interest adds up to a meaningful sum, all for the sake of a few days.

See the Cost in Rupees

Switch the calculator to monthly mode and toggle the deposit timing between before and after the 5th. The tool shows you exactly how many rupees the timing choice is worth over your full tenure. For a typical monthly

contribution over 15 years the gap runs into tens of thousands, and over an extended tenure it grows larger still. It is genuinely free money, available to anyone willing to set a reminder for the first of the month. No other PPF decision offers so large a reward for so little effort.

Making the 15-Year Lock-In Work Harder

The 15-year lock-in is often seen as PPF’s biggest drawback, but handled well it is where the real magic happens. Understanding the maturity options, and the power of extensions, separates the average saver from the one who builds a genuinely large tax-free corpus.

Your Three Choices at Maturity

When your account completes 15 years, you have three options. You can withdraw the entire balance, which is fully tax-free, and close the account. You can extend for a block of 5 years and keep contributing, submitting the required form within a year of maturity, which continues your 80C benefit.

Or you can extend for 5 years without any fresh contributions, letting the existing balance keep compounding at the prevailing rate while you retain the freedom to withdraw once a year. You can keep repeating these 5-year extensions indefinitely.

Loans and Partial Withdrawals

PPF is not entirely illiquid during the lock-in. A loan against your balance is available from the third to the sixth financial year, up to 25 percent of the balance. From the seventh year onwards you can make one partial withdrawal per year, up to 50

percent of the balance at the end of the fourth preceding year, and that withdrawal is tax-free. Premature closure is permitted in specific situations such as a serious illness or a child’s higher education. These features give PPF a useful safety valve without undermining its long-term discipline.

How PPF Fits Into Your Wider Money Plan

PPF is rarely the whole answer to a savings plan, but it is almost always part of a good one. Knowing where it sits alongside your other options helps you use it for what it does best rather than expecting it to do everything.

The Guaranteed Anchor

Think of your savings as a spectrum from safe and slow to risky and fast. At the safe end sit instruments like PPF, with a sovereign guarantee and a fixed, tax-free return, and at the risky end sit equity mutual funds and stocks, which can grow much faster but can also fall sharply. A sensible portfolio holds some of both. PPF is the anchor that will definitely be there at maturity, no matter what markets do, which lets you take measured risk elsewhere with greater peace of mind.

PPF Versus Equity for the Long Run

Over a 15-year horizon, a diversified equity fund has historically outperformed PPF’s 7.1 percent by a wide margin, so a young saver with a long runway and steady nerves should not park everything in PPF. But equity carries no guarantee, and a market crash close to when you need the money can be painful. The practical answer for most people is a blend: use PPF and other guaranteed instruments for the money you cannot afford to lose, and equity for the long-term growth portion you can leave untouched through the ups and downs.

PPF Rules and Rates for 2026

These tables summarise the current numbers and the key operational rules you will need at each stage of the account.

Key Figures at a Glance

Loan and Withdrawal Rules

Extension Options After 15 Years

Understanding the Year-by-Year Growth Schedule

One of the most useful features of this calculator is the year-by-year schedule it produces after you calculate. Rather than just handing you a single maturity figure, it breaks down every year of the account so you can see exactly how your corpus builds. Learning to read it turns an abstract number into a concrete plan.

What Each Column Tells You

The opening balance is what you start each year with, carried over from the previous year. The deposit is what you add that year. The interest is the 7.1 percent earned on the balance after your deposit, which is why depositing early matters so much. The closing balance is the sum of all three, and it becomes next year’s opening balance. Watching the interest column grow year on year is the clearest possible illustration of compounding at work, because the interest earned in the later years dwarfs that of the early ones.

Using the Schedule to Plan Withdrawals

The schedule also helps you plan the loan and partial-withdrawal facilities. Since partial withdrawals from year 7 are capped at 50 percent of the balance at the end of the fourth preceding year, the closing-balance column tells you roughly how much you could access in any given year. If you anticipate a need, such as a child’s school fees, you can see well in advance whether PPF can meet part of it without disturbing your longer-term plan, and time any withdrawal for a year when it does least damage to compounding.

Worked PPF Examples from Mumbai, Chennai and Kolkata

These three cases show accumulation, deposit timing, and the extension fork in real rupee terms, using a different Indian city for each.

Common PPF Mistakes That Quietly Cost You

PPF is simple, but a handful of avoidable mistakes reduce the corpus of millions of account holders every year. Knowing them in advance is the easiest way to stay ahead.

Depositing at the End of the Year

The most widespread mistake is treating PPF as a last-minute tax-saving chore, rushing to deposit in March just before the financial year closes. A lump sum deposited in March earns almost no interest for that year, whereas the same amount deposited in April earns a full year. Repeated over 15 years, this habit alone can cost lakhs in foregone interest. Shift your deposit to the start of the year and you get a meaningful boost for no extra money.

Letting the Account Go Dormant

Another common slip is forgetting to deposit the minimum in a lean year, which pushes the account into a dormant state and suspends the loan and withdrawal facilities. Reviving it means a penalty for each missed year plus the arrears. Since the minimum is only 500 rupees, it is never worth risking dormancy. A tiny standing instruction guarantees the account stays active even in a year when money is tight.

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PPF Quick Reference for 2026

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