PPF Calculator — Deposits, Interest & Maturity

Plan Indian PPF deposits by financial year. See how the fifth-day rule, irregular credits and quarterly rates affect interest and maturity.

Deposit per instalment (₹)Whole multiples of ₹50. Each financial year has a combined ₹1,50,000 cap. Deposit frequencyQuarterly base schedule: April, July, October and January. When credited to PPFUse the credit date, not when you request a transfer. Assumed annual interest (%)Editable projection assumption. Quarterly rates can be changed in the year editor.

Account dates, existing balance & continuation

Account opening dateDetermines first maturity. The opening financial year is followed by 15 complete financial years. Projection starts in financial year2026 means 1 April 2026–31 March 2027. For an existing account, enter its posted balance at that April 1. Opening posted balance (₹)₹0 for the opening year. Existing balance includes past interest; it is not counted as new contributions. Years after first maturity0–30 years. With new deposits, use complete 5-year blocks. Interest-only continuation permits any whole-year period.

Continue deposits after maturity, assuming the formal extension option is made on time

Other own/guardian-minor deposits per FY (₹)Reduces the shared ₹1,50,000 cap; not added to this account's balance. Customize individual years below.

Projected PPF balance

₹43,80,435

At first maturity · 1 April 2042

Illustrative account opened 1 April 2026. This includes the opening financial year and 15 complete years after it.

Projection, not a guaranteed return or bank statement. 7.10% was verified for April–September 2026; future rates are assumptions. No withdrawals, loans, default revival or tax deductions are modelled. Annual credits round to the nearest rupee.

New contributions in this projection₹24,00,000

Projected interest₹19,80,435

Opening posted balance₹0

See how the balance builds

Projected balanceOpening balance + new contributions

From ₹0 to ₹43,80,435, over 16 financial years. Exact yearly amounts are in the ledger below.

Why does a month earn this interest?

Financial yearInspect any year in your projection.MonthAccrued interest is credited only at the March year end.

Opening posted balance: ₹0
Credited by the 5th: ₹12,500
Credited after the 5th: ₹0
Eligible monthly balance: ₹12,500
Interest accrued this month: ₹73.96
Interest credited this month: ₹0

₹12,500 × 7.1% ÷ 12. Monthly accrual is displayed to paise but is not rounded in the calculation. It is not added to this month's eligible balance.

Financial-year ledger

Scroll the table sideways on a small screen. Each row shows that year's new deposits, not cumulative contributions.

FY	Opening balance	New deposits	Interest credit	Closing balance	Shared cap remaining
2026–27	₹0	₹1,50,000	₹5,769	₹1,55,769	₹0
2027–28	₹1,55,769	₹1,50,000	₹16,828	₹3,22,597	₹0
2028–29	₹3,22,597	₹1,50,000	₹28,673	₹5,01,270	₹0
2029–30	₹5,01,270	₹1,50,000	₹41,359	₹6,92,629	₹0
2030–31	₹6,92,629	₹1,50,000	₹54,945	₹8,97,574	₹0
2031–32	₹8,97,574	₹1,50,000	₹69,497	₹11,17,071	₹0
2032–33	₹11,17,071	₹1,50,000	₹85,081	₹13,52,152	₹0
2033–34	₹13,52,152	₹1,50,000	₹1,01,772	₹16,03,924	₹0
2034–35	₹16,03,924	₹1,50,000	₹1,19,647	₹18,73,571	₹0
2035–36	₹18,73,571	₹1,50,000	₹1,38,792	₹21,62,363	₹0
2036–37	₹21,62,363	₹1,50,000	₹1,59,297	₹24,71,660	₹0
2037–38	₹24,71,660	₹1,50,000	₹1,81,257	₹28,02,917	₹0
2038–39	₹28,02,917	₹1,50,000	₹2,04,776	₹31,57,693	₹0
2039–40	₹31,57,693	₹1,50,000	₹2,29,965	₹35,37,658	₹0
2040–41	₹35,37,658	₹1,50,000	₹2,56,942	₹39,44,600	₹0
2041–42	₹39,44,600	₹1,50,000	₹2,85,835	₹43,80,435	₹0

Edit individual years & irregular deposits

A custom year keeps its own deposits, quarterly rates and shared-cap budget when the base plan changes. This editor aggregates all credits on or before the fifth and all credits after it; it does not model withdrawals.

Financial year to editUsing the base schedule.Other own/guardian-minor deposits this FY (₹)Only for the combined cap, not part of this account's return.

How this PPF calculator works

Indian PPF interest uses each month's lowest balance between the close of the fifth and month end. In this deposit-only model, that is the opening posted balance plus credits received by the fifth. Later credits start earning next month. Monthly interest is eligible balance × annual rate ÷ 12; the unrounded monthly accruals are added and credited at the financial-year end in March.

The account's first maturity follows 15 complete financial years after the financial year of opening. Opening on 31 March 2026 gives first maturity in April 2041; opening on 1 April 2026 gives April 2042. The opening year is included in the deposit calendar. In the base schedule, the first deposit occurs in the opening month and earns that month only if credited by the fifth; custom years show your own pattern.

At least ₹500 per financial year keeps this regular-account plan within its supported scope. Deposits use multiples of ₹50, and the ₹1,50,000 annual maximum includes the individual's own and guardian-minor accounts together. This tool rejects over-limit calendars rather than discarding excess payments. Existing balance must be the posted April 1 balance; historical deposits and rates are not inferred.

Continuation and limits

Continuing deposits after maturity requires the formal option within the applicable one-year window, in five-year blocks. Interest-only continuation can last for any period; once continued without deposits for more than a year, the option to resume contributions is unavailable. This projection assumes the chosen option is valid; it does not file forms, certify account eligibility or calculate withdrawals, loans, default revival or tax deductions. Future rates can change quarterly, so adjust the assumptions when a notification changes.

Sources and interest-rate reference

Rules checked 30 September 2026: National Savings Institute: PPF Scheme 2019, consolidated with the 2020 amendment, paragraphs 4–7 and 11–12. Indian Bank's official small-savings table confirms 7.10% for April–September 2026 and references the Ministry's 30 June notification. That period is a dated reference; the calculator uses your manually editable rate assumptions for other periods. Annual interest is rounded once to whole rupees, half up, as the model's explicit posting convention; individual account-office statements may differ.

Your account values remain in this page's memory. Copying exports only the text you choose; inputs are not placed in a share URL or saved in browser storage. The calculation continues in a saved offline copy using its displayed rules and your assumptions.