PPF Maturity Amount for ₹1.5 Lakh a Year Over 15 Years

The short answer

If you deposit ₹1.5 lakh at the start of every financial year for 15 years and the rate stays at 7.1%, your PPF account grows to about ₹40.68 lakh. You put in ₹22.5 lakh and earn about ₹18.18 lakh in interest. The government kept the PPF rate at 7.1% for October to December 2026, but it can change every quarter, so the final figure is an estimate. Check other amounts and rates in the PPF Calculator.

The PPF rules that drive the calculation

These are the rules that matter for the maturity amount. Confirm them with your bank or post office, because scheme rules and rates are set by the government and can change.

• Deposit limits: a minimum of ₹500 and a maximum of ₹1,50,000 in a financial year, as a lump sum or in instalments.
• Interest rate: set by the government every quarter. It was 7.1% for the October to December 2026 quarter.
• Monthly interest rule: interest for each month is worked out on the lowest balance between the 5th and the last day of that month.
• Compounding: the interest for the year is added to the account at the end of the financial year, so it compounds yearly.
• Term: the account matures after 15 full financial years, not counting the year in which it was opened.

₹1.5 lakh a year at 7.1%: year by year

These figures assume ₹1.5 lakh is deposited by 5 April each year and the rate stays at 7.1% throughout. The PPF Calculator uses the same yearly method.

End of year	Total deposited	Balance	Interest so far
1	₹1,50,000	₹1,60,650	₹10,650
5	₹7,50,000	₹9,25,701	₹1,75,701
10	₹15,00,000	₹22,30,124	₹7,30,124
15	₹22,50,000	₹40,68,209	₹18,18,209

Notice how the second half does most of the work. The balance roughly doubles between year 10 and year 15, even though you deposit only a third of your money in those years. That is compounding catching up.

Smaller yearly amounts

Yearly deposit	Deposited in 15 years	Maturity at 7.1%	Interest
₹50,000	₹7.5 lakh	₹13,56,070	₹6,06,070
₹1,00,000	₹15 lakh	₹27,12,139	₹12,12,139
₹1,50,000	₹22.5 lakh	₹40,68,209	₹18,18,209

If the rate changes

The rate has stayed at 7.1% recently, but over 15 years it may not. Holding everything else the same, ₹1.5 lakh a year gives about ₹38.96 lakh at 6.6% and ₹42.48 lakh at 7.6%. A half-point change in the rate moves the maturity amount by well over ₹1 lakh.

Timing: why the 5th of the month matters

Because each month's interest uses the lowest balance between the 5th and the month-end, the date you deposit changes what you earn. For ₹1.5 lakh a year at 7.1% over 15 years (estimates):

How you deposit	Approximate maturity
Lump sum by 5 April each year	₹40.68 lakh
Lump sum in April but after the 5th	₹40.46 lakh
₹12,500 by the 5th of every month	₹39.45 lakh
₹12,500 every month after the 5th	₹39.22 lakh
Lump sum in March each year	₹37.99 lakh

Depositing in March, at the end of the financial year, still qualifies for that year's limit but earns almost no interest that year. Over 15 years that costs about ₹2.7 lakh compared with depositing by 5 April. If you invest monthly, setting a standing instruction for the 1st to the 4th of the month is a simple fix.

How to use the PPF Calculator

Open the PPF Calculator.

Set Yearly contribution (₹500 to ₹1.5 lakh, in steps of ₹500).

Check the PPF rate. It starts at 7.1%; change it if the government announces a new rate or you want to test a range.

Set the Period. It starts at 15 years and moves in 5-year steps up to 40, which lets you model extensions.

Read Total invested, Interest earned and Maturity amount, then scroll the year-by-year table.

The calculator assumes each year's deposit is made at the start of the year, so its result matches the "by 5 April" row above. It does not model monthly deposits or deposits made late in the year.

The Tax saved (est.) card is a one-year estimate that assumes the full deposit is deducted at the 30% tax rate plus 4% cess. The deduction for PPF deposits is available only if you use the old tax regime, so under the new regime that figure does not apply.

Opening year and the real number of deposits

The account matures after 15 full financial years that follow the year you open it, so in practice you can usually make deposits in 16 financial years: the opening year plus the next 15. The table above, like the calculator, uses 15 deposits. Treat it as a conservative estimate if you open the account early in a financial year and keep depositing.

After 15 years

At maturity you can withdraw, keep the account running without new deposits, or extend it in blocks of five years with deposits. Continuing ₹1.5 lakh a year for one five-year extension at 7.1% takes the balance to about ₹66.58 lakh after 20 years. The choices are compared in PPF Extension After 15 Years: With or Without Contribution?.

Common mistakes

• Depositing at the end of the year. It keeps the tax deduction (old regime) but loses most of that year's interest.
• Going over ₹1.5 lakh. The yearly limit covers your own account and any PPF account you operate for a minor together, so add them up before depositing.
• Treating 7.1% as fixed for 15 years. The rate is reviewed every quarter.
• Forgetting the minimum deposit. Missing the ₹500 minimum in a year makes the account discontinued. You can revive it by paying a ₹50 fee plus ₹500 for each year you missed.

For how PPF compares with your provident fund at work, read EPF vs PPF: Key Differences Every Salaried Indian Should Know.

This guide explains the general rules and is not tax advice.