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PPF vs FD Calculator

Investment

Put the same yearly amount into a tax-free PPF and a taxable fixed deposit and see how PPF’s EEE tax status quietly widens the maturity gap over the years.

Free · No sign-up · Private6 min readUpdated 27 July 2026

In short: For the same yearly deposit, PPF gives a fully tax-free (EEE) ~7.1% return with a sovereign guarantee, while an FD’s ~7% interest is taxed at your slab — so a 30%-slab investor keeps only about 4.9% post-tax. Over a 15-year term PPF almost always ends up ahead, but the FD offers flexible tenures and no ₹1.5 lakh cap.

Results

PPF maturity

₹40,68,209

Tax-free (EEE)

FD maturity

₹33,69,944

After tax on interest

Difference

₹6,98,266

PPF minus FD

Total deposited

₹22,50,000

PPF vs FD maturity over time

How the same yearly deposit grows in a tax-free PPF versus a taxable FD (post-tax).

Year-wise comparison

Year-wise comparison
YearPPF valueFD value (post-tax)
1₹1,60,650₹1,57,350
2₹3,32,706₹3,22,410
3₹5,16,978₹4,95,558
4₹7,14,334₹6,77,191
5₹9,25,701₹8,67,723
6₹11,52,076₹10,67,591
7₹13,94,524₹12,77,253
8₹16,54,185₹14,97,189
9₹19,32,282₹17,27,901
10₹22,30,124₹19,69,918

Both modelled as yearly deposits compounding annually; the FD compounds at its post-tax rate.

How the PPF vs FD Calculator works

Formula

PPF = annual annuity at r; FD = annual annuity at r × (1 − tax slab)
r
Stated annual interest rate for each instrument
PPF
Yearly deposit compounded annually at the tax-free PPF rate
FD
Yearly deposit compounded annually at the FD’s post-tax rate
tax slab
Your marginal income-tax rate applied to FD interest
t
Investment horizon in years

Step-by-step calculation

Worked with the default values.

  1. 1

    FD post-tax rate

    7% × (1 − 30%)

    = 4.90%

  2. 2

    PPF maturity (tax-free)

    ₹1,50,000/yr at 7.1% for 15 yrs

    = ₹40,68,209

  3. 3

    FD maturity (post-tax)

    ₹1,50,000/yr at 4.90% for 15 yrs

    = ₹33,69,944

  4. 4

    Difference

    PPF maturity − FD maturity

    = ₹6,98,266

How it works

  • You choose a yearly deposit (capped at ₹1.5 lakh for PPF) and the calculator puts the same amount into both a PPF and an FD each year.
  • PPF compounds annually at the government-set rate and every rupee of interest and maturity is tax-free under the EEE regime.
  • The FD is modelled at its post-tax rate — rate × (1 − your slab) — because FD interest is added to your income and taxed each year, so the comparison isolates the tax drag.

Examples

₹1,50,000/year for 15 years (PPF 7.1%, FD 7%, 30% slab)

PPF grows to about ₹40.68 lakh; the FD, taxed down to ~4.9% post-tax, reaches roughly ₹33.7 lakh — a gap of about ₹7 lakh.

₹1,00,000/year for 10 years (PPF 7.1%, FD 7%, 20% slab)

PPF reaches about ₹15 lakh versus roughly ₹14 lakh in the FD, as the smaller tax slab narrows but does not close the gap.