PPF Calculator

Find your Public Provident Fund maturity value, interest earned and year-by-year balance at the current PPF rate.

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This PPF calculator shows what a Public Provident Fund account will be worth if you put in the same amount every financial year at a rate you choose. It is meant for savers checking a 15-year PPF plan or an extension, and it gives the maturity value, total deposits, tax-free interest and a year-by-year balance table.

What to enter in the three PPF fields

Yearly investment: ₹500 to ₹1,50,000, the scheme's own limits per financial year. A blank, negative or out-of-range amount shows "PPF deposits must be between ₹500 and ₹1,50,000 a year." If you save monthly, multiply by 12.
Interest rate: pre-filled with 7.1%, the current PPF rate. You can test anything from 0% to 15%; a negative rate or one above 15% is rejected.
Investment period: 15 years, or 20, 25 or 30 if you plan to extend in five-year blocks. The longer options assume the same deposit continues in every extension year.

How PPF interest is worked out, and what the calculator assumes

Under the Public Provident Fund Scheme, 2019, interest for each month is calculated on the lowest balance between the close of the 5th and the month end, and the year's interest is credited once, at the end of the financial year. PPF therefore compounds annually.

The calculator assumes the whole yearly deposit goes in by 5 April, so it earns twelve months of interest:

Year-end balance = (opening balance + deposit) × (1 + rate)

Over n years this adds up to P × [(1 + r)^n − 1] ÷ r × (1 + r). The tool keeps paise in its working and shows whole rupees, so a passbook may differ by a few rupees because of rounding.

Worked example: ₹1.5 lakh a year for 15 years at 7.1%

Year 1: ₹1,50,000 × 7.1% = ₹10,650, so the balance is ₹1,60,650. Year 2: (₹1,60,650 + ₹1,50,000) × 7.1% = ₹22,056, taking it to ₹3,32,706. With the formula, 1.071^15 = 2.7979636, and ₹1,50,000 × (2.7979636 − 1) ÷ 0.071 × 1.071 = ₹40,68,209: ₹22,50,000 deposited and ₹18,18,209 interest.

Year	Interest	Year-end balance
1	₹10,650	₹1,60,650
5	₹61,368	₹9,25,701
10	₹1,47,842	₹22,30,124
15	₹2,69,695	₹40,68,209

At ₹5,000 a month (₹60,000 a year) the result is ₹16,27,284, and if the rate were 6.5% throughout, the ₹1.5 lakh plan would end at ₹38,63,102.

Lump sum by 5 April or monthly instalments?

Depositing ₹1,50,000 on 6 April instead of 5 April loses April's interest on it, about ₹888 (₹1,50,000 × 7.1% ÷ 12). Paying ₹12,500 before the 5th of each month instead comes to roughly ₹39.4 lakh after 15 years, about ₹1.2 lakh less. The calculator always uses the 5 April lump sum, so if you pay in instalments, treat its result as the upper end.

Maturity and extension: close, continue with deposits, or let it run

The account matures 15 full financial years after the end of the year you opened it. One opened in October 2026 (FY 2026-27) can be closed from April 2042 and takes deposits in 16 financial years; the calculator treats the term as exactly 15. At maturity you can:

Close it and take the whole balance, tax-free.
Extend with deposits for five years by submitting Form-4 within one year of maturity; withdrawals in the block are capped at 60% of the balance at its start. In the example, 20 years gives ₹66,58,288 (₹30 lakh deposited) and 25 years ₹1,03,08,015.
Keep it without deposits, the default if you do nothing. The balance keeps earning interest and one withdrawal a year is allowed. The tool has no setting for this, but ₹40,68,209 × 1.071^5 ≈ ₹57.33 lakh after five more years.

An account that runs without deposits for more than a year cannot switch back to an extension with deposits, so decide within that first year.

Rate, deposit limits and tax as of October 2026

Rate: 7.1% for October–December 2026, unchanged since 1 April 2020. The Finance Ministry reviews it every quarter, and a new rate applies to the whole balance, not only fresh deposits.
Limits: deposits go in multiples of ₹50, and the ₹1.5 lakh yearly cap covers your own account and any minor's account you run as guardian, together.
Missed year: without the ₹500 minimum the account is discontinued, and loans and partial withdrawals stop. Revival is possible only before maturity, at ₹500 plus a ₹50 fee for every missed year. An account left unrevived still earns interest, but you cannot open a new PPF account until it is closed after maturity.
Tax: deposits qualify under Section 80C (section 123 of the Income-tax Act, 2025), but only in the old regime for Tax Year 2026-27. Interest and maturity are tax-free in both regimes. In the old regime's 30% slab, the full deduction saves ₹46,800 including 4% cess, more if a surcharge applies to your income; check both regimes with the income tax calculator.

What this PPF calculator leaves out

It does not model loans (third to sixth financial year, up to 25% of the balance at the end of the second preceding year), partial withdrawals from the seventh year, premature closure (from the seventh financial year on limited grounds, with past interest recalculated at 1% less), rate changes partway through, or deposits that vary from year to year. For a daughter's savings, try the Sukanya Samriddhi calculator. Scheme rules and forms are on the National Savings Institute PPF page. All results here are estimates for planning, not tax or investment advice.

Frequently asked questions

Is PPF interest taxable?

No. PPF interest and the amount paid out at maturity are fully exempt from income tax under the old and the new regime alike. Only the deduction for deposits depends on the regime, and it is available in the old one.

What is the PPF interest rate for October to December 2026?

It is 7.1% a year, the same rate that has applied since April 2020. The rate is announced each quarter, so check the latest notification before building a long-term plan on it.

How much will ₹1,000 a month in PPF become after 15 years?

If the year's ₹12,000 goes in by 5 April each year, it grows to about ₹3,25,457 at 7.1%, of which ₹1,45,457 is interest. Paying ₹1,000 every month instead gives slightly less.

Can I open more than one PPF account?

No. An individual can hold only one PPF account and joint accounts are not permitted. You may open one for each minor child as guardian, but your deposits across your own and the child's accounts cannot exceed ₹1.5 lakh a year in total.

Can I withdraw money from PPF before 15 years?

Partial withdrawals start from the seventh financial year, up to 50% of the lower of the balance four years earlier and last year's closing balance. Full closure is possible from the same year, but only for a life-threatening illness of the holder, spouse, dependent children or parents, higher education of the holder or a dependent child, or a change in residency status. All interest credited since opening, or since the current extension, is then reworked at 1% less.

What happens to my PPF account after 15 years if I do nothing?

It carries on without fresh deposits and the balance keeps earning the PPF rate, with one withdrawal allowed each year. To keep depositing, you must apply for a five-year extension within one year of maturity.

What happens if I miss a PPF deposit in a year?

The account becomes discontinued, and loans and partial withdrawals are blocked. You can revive it before maturity by paying the ₹500 minimum for each missed year plus a ₹50 fee for each of those years.