Skip to content
ENExplore Calculators

PPF Maturity Calculator

Work out ppf maturity instantly with clear inputs, formula shown and shareable results.

About PPF Maturity Calculator

A public provident fund credits interest annually on deposits made early in the year, so depositing at the start of the year captures a full year of interest. Over the standard fifteen-year term interest builds to roughly a third of the maturity value.

Formula

PPF maturity

FV = D × [((1+r)^n - 1)/r] × (1+r)

D
Annual deposit
r
Annual rate

Worked example

With the default values below, PPF Maturity Calculator returns Maturity Value of $4,068,209.22. Change any input above and every figure here is recalculated in your browser.

Inputs used

Annual Depositminimum 0
150,000
Annual Interest Rateaccepts 0–100 %
7.1 %
Yearsaccepts 1–50
15

Results

Maturity Value
$4,068,209.22
Total Deposited
$2,250,000.00
Interest Earned
$1,818,209.22
Interest As Share Of Maturity
44.69%

Step by step

  1. 1Values used
  2. 2PPF maturity
  3. 3Maturity Value= 4,068,209.22
  4. 4Total Deposited= 2,250,000.00
  5. 5Interest Earned= 1,818,209.22
  6. 6Interest As Share Of Maturity= 44.69

Assumptions and limits

  • The result is derived only from the 3 inputs listed above. Anything not among them is not part of the calculation.
  • In particular, this calculator does not take inflation, tax or fees or charges into account.
  • Figures are rounded for display to 2 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
  • Figures are estimates for planning only. Market returns are not guaranteed, and rates, limits and tax rules change. This is not financial or tax advice — speak to a qualified adviser before acting.
  • This is an estimate for general information and not professional financial, tax or legal advice. See the full disclaimer for the limits that apply to this kind of calculator.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

PPF Maturity Calculator — full guide

Timing is the whole mechanic

A public provident fund credits interest once a year, calculated on the lowest balance held in the account during each month. Deposit at the start of the financial year and the money earns for twelve months; deposit in the last month and it earns for roughly one. The calculator models the favourable case — the full annual amount paid in at the beginning of each year — which is why the formula carries an annuity-due multiplier.

It is the tool to open before a financial year starts, when deciding how much of the annual limit to use, or when judging whether a fifteen-year lock-in earns its keep.

Formula

FV = D × [((1 + r)^n − 1) ÷ r] × (1 + r)

D is the annual deposit, r the annual interest rate as a decimal and n the number of years. The closing (1 + r) is the payoff for depositing early rather than late.

The 7.1% shown in the field is the calculator's default and is used below as an example rate only. The PPF rate is notified by the government and has been revised repeatedly, so look up the rate currently notified before you treat any projection as a plan. A revision applies to your whole balance, including deposits already made, so the trajectory can change mid-term.

Fifteen years on the defaults

Annual deposit ₹1,50,000, rate 7.1%, term 15 years.

  1. 1.071^15 = 2.797964
  2. Annuity factor: (2.797964 − 1) ÷ 0.071 = 25.3234
  3. Annuity-due adjustment: 25.3234 × 1.071 = 27.1214
  4. Maturity: 1,50,000 × 27.1214 = ₹40,68,209
  5. Total deposited: 1,50,000 × 15 = ₹22,50,000
  6. Interest earned: 40,68,209 − 22,50,000 = ₹18,18,209
  7. Interest as a share of maturity: 18,18,209 ÷ 40,68,209 = 44.7%
FigureValue
Maturity value₹40,68,209
Total deposited₹22,50,000
Interest earned₹18,18,209
Interest share of maturity44.7%

Which deposits do the work

Year one's ₹1,50,000 compounds for the full fifteen years and becomes 1,50,000 × 1.071^15 = ₹4,19,695, nearly 2.8 times its size. The deposit made in year fifteen grows to ₹1,60,650. Add up the interest attributable to each year and the first five deposits account for about 60% of the total ₹18,18,209 — front-loading the account matters more than topping it up near the end.

Assumptions and limits

  • A single deposit at the start of each year. Twelve monthly instalments of ₹12,500 earn roughly ₹5,769 in year one against ₹10,650 for the lump sum, a shortfall of about ₹4,881.
  • One rate for all fifteen years, which is not how the scheme has behaved.
  • Contribution ceilings, eligibility and tax treatment are not modelled; the field accepts whatever you type.
  • Loans, partial withdrawals and five-year extensions are outside the calculation.

Projections, not financial or tax advice. Compare a market-linked route with the sip return calculator, a shorter guaranteed one with the fixed deposit maturity calculator, and test what the maturity buys in the inflation calculator.

Figures are estimates for planning only. Market returns are not guaranteed, and rates, limits and tax rules change. This is not financial or tax advice — speak to a qualified adviser before acting.

Frequently Asked Questions

Why deposit early in the year?

Interest is calculated on the lowest balance between set dates, so an early deposit earns for the whole year.

Can the account be extended?

Yes, usually in blocks of five years, with or without further contributions.

What does skipping a single year's deposit do to the maturity value?

It depends on which year. Missing the first ₹1,50,000 deposit cuts maturity from ₹40,68,209 to ₹36,48,515, because that instalment alone would have grown to ₹4,19,695 over fifteen years. Missing the final year's deposit costs just ₹1,60,650, leaving ₹39,07,559. The earlier the gap, the more expensive it is.

If the notified rate changes in year eight, does my earlier money keep the old rate?

No. PPF interest is applied to the running balance at the prevailing notified rate, so a revision affects deposits you already made as well as future ones. Treat any single-rate projection as one scenario. Re-run the calculator at a rate one or two percentage points lower to see how wide the realistic range is.

Should I deposit the full ₹1,50,000 at once or spread it over twelve months?

One lump sum early in the year, if you can manage the cash flow. Monthly instalments of ₹12,500 produce around ₹5,769 of interest in the first year versus ₹10,650 for a single early deposit, because interest is credited on the lowest monthly balance. That is roughly ₹4,881 forgone in year one alone, and it recurs annually.

Why does the maturity figure change so much when I shorten the term to ten years?

Because the longest-held deposits carry most of the growth. On the defaults, the first five annual deposits generate about 60% of the ₹18,18,209 of interest. Cutting the term removes the years in which those deposits compound hardest, so the maturity value falls by far more than the one-third of deposits you dropped.

Related Calculators

PPF Maturity Calculator | Calcrivo