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HR & Salary · Local-first · Beta

ESOP Calculator

Illustrate ESOP vesting, exercise cost, ownership and separate tax-event scenarios.

Instant result•No account•Inputs stay in your browser
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Check the method before you rely on the result

Tier D · Runs locally in this browser
Method
Grant and vesting arithmetic with a separately labelled exercise spread and optional rate-based tax illustration.
Vested shares = grant shares × vested %; tax-event exercise spread = max(FMV on exercise/allotment date − exercise price, 0) × exercised/allotted shares.
Sources
4 reviewed references · 3 official
Open the source register
Effective period
Formula-based; no statutory effective period
Last verified
10 August 2026
Review every 90 days
Reviewer status
Named corporate/legal and tax reviewer: external review pending
Privacy
Startup inputs and results stay in this browser. They are not sent to analytics, a backend, a URL or a log, and are not saved by default. These outputs are user-entered scenarios, not recommendations or professional valuations.
Important limitations
  • The tool does not determine FMV, vesting validity, startup eligibility, perquisite timing, capital gains or plan compliance.
  • Tax-rate input is optional arithmetic only and does not replace tax computation.

Read all limitationsReport an error

Browse HR & Salary · Methodology · Sources

A quick guide

Use the number with context

The answer is only useful when you know what it includes and what it leaves out.

How to use it

  1. Enter fully diluted shares before grant using the same period and unit as the other inputs.
  2. Enter esop grant shares using the same period and unit as the other inputs.
  3. Enter vested percentage using the same period and unit as the other inputs.
  4. Enter exercised / allotted shares (optional) using the same period and unit as the other inputs.
  5. Enter exercise / allotment date (optional) using the same period and unit as the other inputs.
  6. Enter exercise price per share using the same period and unit as the other inputs.
  7. Enter illustrative fair market value per share using the same period and unit as the other inputs.
  8. Enter illustrative sale price per share (optional) using the same period and unit as the other inputs.
  9. Choose tax display using the option that matches your scenario.
  10. Enter illustrative tax rate (optional) using the same period and unit as the other inputs.

Formula

Vested shares = grant shares × vested %; tax-event exercise spread = max(FMV on exercise/allotment date − exercise price, 0) × exercised/allotted shares.

The output separates ownership, vested shares, exercised/allotted shares, exercise-date FMV, spread and later sale gain so no one number is presented as the tax answer.

Make it concrete

Worked example

A 10,000-share grant with 25% vested has a ₹1,00,000 spread only when 2,500 shares are actually exercised/allotted at a ₹10 exercise price and ₹50 exercise-date FMV.

Boundaries

What this tool does not assume

Limitations

  • The tool does not determine FMV, vesting validity, startup eligibility, perquisite timing, capital gains or plan compliance.
  • Tax-rate input is optional arithmetic only and does not replace tax computation.

Edge cases

  • A sale price is optional; no later gain is shown when it is blank.
  • A fair market value below the exercise price produces zero positive spread rather than a negative tax base.

Last reviewed 10 August 2026 · Formula version 1.0

Method & sources

How this result is grounded

The formula is deterministic and runs in your browser. Read the reference below for the method used by this tool.

Questions

Frequently asked

Does this calculate ESOP tax?

Only an optional, rate-based spread illustration. Actual treatment depends on law, FMV, plan terms and personal facts.

Does it verify my company’s ESOP plan?

No. Use the approved plan documents and qualified corporate and tax advice.

Keep going

Related tools

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Source register checked 10 August 2026.