A S BANKA ADVISORS

Most founders treat their ESOP as a single decision. They carve out a pool when an investor asks for one, hand out a few grants, and move on. Then, two rounds later, the pool is empty, half the grants are sitting unexercised because nobody could afford the tax, and a key hire is asking why the equity they were promised feels like it evaporated.

An ESOP is not a one-time carve-out. It is an architecture. And like any architecture, the decisions you make at the foundation are the ones that are cheap to get right and expensive to fix later. This guide walks through ESOP architecture for Indian startups the way it actually plays out across stages: how big the pool should be, how grants should vest, how long employees get to exercise, how the whole thing is taxed, and the two structural choices that most founders never think about until diligence forces them to.

What ESOP Architecture Actually Means

ESOP stands for Employee Stock Option Plan. It gives your team the right to buy shares in the company at a fixed price, the exercise price, after they have earned that right by staying and contributing over time. The promise is simple: build something valuable here, and you own a real slice of the upside.

Architecture is everything around that promise. How much equity is set aside. How quickly each grant becomes the employee’s to keep. How long they have to actually buy the shares once they leave. Whether the pool is held directly on your cap table or inside a trust. And how every one of those choices interacts with Indian tax law and with the next investor who reads your cap table.

The reason this matters is that an ESOP touches three things at once: your ability to hire, your cap table, and your employees’ personal finances. A badly designed plan can be generous on paper and worthless in practice. A well designed one is a quiet competitive advantage you can use for years.

The Pool: How Big, and When

The first architectural decision is the size of the option pool, expressed as a percentage of fully diluted equity. Fully diluted means counting every share that exists or could exist, including the whole option pool, not just shares issued today. Investors always think in fully diluted terms, so you should too.

For most early-stage Indian startups, the pool sits somewhere between 8 and 12 percent of fully diluted equity. That is enough to make meaningful grants to early employees and a first senior hire or two without giving away so much that founders and investors feel the dilution sharply.

The part founders miss is that the pool is not set once. It is topped up. Here is the pattern across stages:

• Pre-seed and seed: Create an initial pool of roughly 8 to 12 percent. Most of it should be unallocated, because your most important hires are still ahead of you.
• Series A: The lead investor will almost always ask you to top the pool back up to a target level, often 10 percent or more of the post-money cap table, before the round closes. Critically, this top-up usually comes out of the founders’ and existing shareholders’ equity, not the new investor’s. That is a negotiation point, and knowing it is coming changes how you price the round.
• Series B and beyond: The pool gets refreshed again, but by now grants are larger and aimed at senior leadership. The discipline shifts from “hand out generously” to “grant deliberately against a plan.”

The mistake to avoid is setting a large pool too early and letting it sit mostly empty, because that dilution is real even when the options are unissued. The opposite mistake is running the pool dry right before a critical hire and being forced to expand it at the worst possible moment. The fix for both is the same: keep a simple, current view of how much of the pool is granted, vested, and still available, and plan the next top-up before you need it.

Grant Design: Vesting, Cliff, and the Exercise Window

Once the pool exists, every individual grant has its own architecture. Three settings define it.

Vesting schedule. Vesting is how an employee earns their grant over time. The global default, widely used in India too, is four-year vesting: the employee earns a quarter of the grant after one year and the rest in monthly or quarterly slices over the following three years. Vesting is what aligns equity with commitment. Someone who leaves after a year keeps only what they earned.

The cliff. The one-year cliff means nothing vests until the employee completes twelve months. This protects you from giving equity to someone who does not work out in the first few months. It is standard, and you should keep it.

The exercise window. This is the setting that quietly does the most damage and gets the least attention. When an employee leaves, how long do they have to actually buy their vested shares before the options expire? Many Indian plans set a short window, sometimes just a few months. The problem is that exercising triggers a tax bill (more on that below), so an employee who has earned valuable options but cannot fund the tax is forced to walk away from equity they genuinely earned. A longer or more flexible exercise window is one of the most employee-friendly choices you can make, and it costs you nothing to set generously at the start. Retrofitting it later means re-papering every grant.

Design these three settings once, write them into the plan document, and apply them consistently. Inconsistent grant terms across employees are exactly the kind of thing that surfaces awkwardly in diligence.

How ESOPs Are Taxed in India

This is the part of ESOP architecture that founders understand least and employees feel most. In India, an ESOP is taxed at two separate moments, and designing around them is central to making the plan actually valuable.

Tax event one: exercise. When an employee exercises their option and the shares are allotted, the difference between the fair value of the share on that date and the price they paid is treated as a salary perquisite. It is added to their income and taxed as salary in the year of exercise. The catch is brutal in its timing: the employee owes tax on a paper gain, often before the shares can be sold for any cash to pay that tax. This single mismatch is why so many earned options go unexercised.

The eligible-startup relief. The law recognises this problem for one specific category of company. If your startup is recognised by DPIIT as an eligible start-up (the same recognition that carries the certified tax-holiday benefit), your employees can defer the tax on the exercise perquisite. The tax becomes payable on the earliest of three events: the expiry of 48 months (four years) from the end of the year in which the shares were allotted, the date the employee sells the shares, or the date the employee leaves the company. This deferral does not erase the tax, but it buys time and very often lets the tax be paid out of an actual sale rather than out of pocket. If your startup qualifies for this recognition, building your plan around it is one of the highest-value design choices you can make.

Tax event two: sale. When the employee eventually sells the shares, they pay capital gains tax on the gain from the fair value already taxed at exercise up to the sale price. In other words, the value taxed once as salary is not taxed again as gains; it becomes the cost base for the capital-gains calculation. How that gain is taxed depends on how long the shares were held and whether the company is listed.

The architectural takeaway: the exercise window, the eligible-startup deferral, and the employee’s ability to fund the tax are not separate issues. They are the same issue. A plan that ignores them hands out options that look generous and behave like a trap.

Tax positions above reflect the framework in force for the current year. Specific rates, holding periods and the deferral mechanism should be confirmed for an employee’s exact situation before they act.

Direct Grants Versus an ESOP Trust

There are two main ways to hold the pool, and the choice has real consequences.

Direct grants. The company grants options straight to employees, and on exercise it issues fresh shares to them. This is simpler and cheaper to run, and it is how most early-stage startups begin. The downside is that every exercise adds a new name to your cap table and your share register, which over years can mean a long tail of small shareholders to administer.

ESOP trust. The company sets up a trust that holds the pool. The trust acquires shares and transfers them to employees as they exercise. This keeps the cap table cleaner, can make buybacks and secondary sales smoother, and is common once a company is larger or expects significant secondary activity. It costs more to set up and run, and it carries its own compliance.

For most founders, the honest answer is that direct grants are fine at the start, and a trust becomes worth considering as the team grows, as secondaries appear, or as a future listing comes into view. The mistake is not choosing wrong on day one. The mistake is never revisiting the choice as the company outgrows the simple structure.

The Foreign-Subsidiary Wrinkle

If you have flipped to a foreign holding company, or you run an Indian company with an overseas subsidiary, your ESOP architecture gets a layer more complicated. Which entity grants the options, where the optionholder is tax-resident, and how value moves across the border all change the answer. Granting options in a US or Singapore parent to employees sitting in India, for example, brings both Indian perquisite tax and cross-border rules into play at the same time.

This is not a reason to avoid it. Plenty of Indian startups with global structures run clean, compliant ESOPs. It is a reason to design the plan with the cross-border structure in mind from the start, rather than granting first and discovering the complications during a raise. If your structure spans borders, this is the part of your ESOP architecture worth getting a second set of eyes on early.

ESOP Architecture by Stage: At a Glance

How to Design Your ESOP: A 5-Step Checklist

1. Size the pool in fully diluted terms. Start at 8 to 12 percent, keep most of it unallocated early, and plan when the next top-up will be needed rather than reacting to it.
2. Fix your standard grant terms once. Four-year vesting, one-year cliff, and an exercise window that is generous enough that leavers are not taxed out of earned equity. Write them into the plan and apply them consistently.
3. Design around the two tax events. Understand that exercise triggers a salary perquisite and sale triggers capital gains, and if you are a DPIIT-recognised eligible startup, build the deferral into how you explain grants to employees.
4. Choose how you hold the pool, and revisit it. Direct grants to begin with, a trust when scale, secondaries, or a listing make it worthwhile.
5. Keep the option register current. Granted, vested, exercised, and available, reconciled to your cap table at every change. This is the single thing diligence checks first, and the cheapest to keep clean.

For the wider context, our guide on ESOP versus phantom stock covers when options are the right tool at all, the ESOP benchmarks for 2026 show how much equity Indian startups actually grant, and the startup cap table guide puts the pool in the context of the whole ownership picture. To model what a grant is actually worth after tax, the ESOP Cost Simulator is a quick way to see the numbers.

Frequently Asked Questions

How big should an ESOP pool be for an Indian startup?

Most early-stage Indian startups set a pool of 8 to 12 percent of fully diluted equity, with most of it unallocated at the start. The pool is then topped up at each major funding round, often to 10 percent or more of the post-money cap table at Series A, usually out of existing shareholders’ equity. The right size depends on how senior your planned hires are and how many rounds you expect before profitability.

How are ESOPs taxed for employees in India?

ESOPs are taxed at two points. When the employee exercises the option, the difference between the share’s fair value and the exercise price is taxed as a salary perquisite in that year. When they later sell the shares, they pay capital gains tax on the increase from that fair value to the sale price. Employees of DPIIT-recognised eligible startups can defer the first tax to the earliest of 48 months from the end of the year of allotment, the sale of the shares, or leaving the company.

What is the difference between a vesting period and an exercise window?

Vesting is how an employee earns their options over time, typically over four years with a one-year cliff. The exercise window is how long they have to actually buy their vested shares, especially after they leave. An employee can be fully vested but still lose their equity if the exercise window is short and they cannot fund the tax in time. The two are separate settings and both matter.

Should I use a direct ESOP or an ESOP trust?

Direct grants, where the company issues shares to employees on exercise, are simpler and suit most early-stage startups. An ESOP trust holds the pool centrally, keeps the cap table cleaner, and makes buybacks and secondary sales smoother, which becomes valuable as the company grows or approaches a listing. Many startups start direct and move to a trust later.

Does the ESOP pool dilute founders or investors at Series A?

Usually founders and existing shareholders. When a Series A investor asks you to expand the pool before the round, the top-up is typically carved out of the pre-money cap table, which means existing holders absorb the dilution and the new investor’s stake is protected. Knowing this in advance lets you account for it when you negotiate the valuation.

The Bottom Line

An ESOP is one of the most powerful tools a founder has to hire above their weight and keep the people who build the company invested in its outcome. But it only works if it is designed, not improvised. Pool size, vesting, the exercise window, the tax timing, and how you hold the pool are architectural choices, and the cheapest time to get them right is before the grants go out and before an investor reads your cap table.

At A S Banka Advisors Private Limited, we help founders design ESOP structures that survive every funding round, stay clean through diligence, and actually deliver value to the people they are meant for. If you are setting up or cleaning up an ESOP, schedule a strategy session and we will work through your specific structure.

Disclaimer: This article is for general information only and does not constitute legal, tax or financial advice. ESOP design and taxation depend on your company’s specific facts, recognition status and the law in force at the relevant time. Please consult a qualified advisor before designing or amending an ESOP.