What happens to ESOPs when you leave a company?

You quit your job. Or maybe the company quit on you. Whatever the reason, those ESOPs sitting in your grant agreement are now in a different rulebook than they were a week ago. The vesting clock might pause, the unvested portion might disappear, and the vested portion might come with a deadline you did not see coming.

This is the full breakdown of what happens to ESOPs when you leave a company — vested, unvested, taxable events, and the tactical decisions that decide whether you walk away with real wealth or burnt paper.

The two halves of any ESOP grant

An ESOP grant always has two parts:

• Vested options — the portion that has already crossed your vesting milestones and is yours to exercise.
• Unvested options — the portion that is still on the way to vesting.

The day you leave, these two halves are treated very differently. Confusing one for the other is the most expensive mistake in ESOP exits.

What happens to unvested options

Almost universally, unvested options are forfeited the moment you separate. They go back to the option pool. There is no notice period extension or cliff suspension that restores them.

This is true whether you resign, are terminated, or leave on mutual agreement, in 95 percent of standard ESOP plans. Some plans accelerate vesting in specific events (death, disability, change of control), but voluntary exit is almost never one of them.

The only way unvested options survive your exit is if your departure happens during a "good leaver" event explicitly listed in the plan, such as retirement at a specified age, certain medical situations, or a company-initiated reduction in force with severance terms.

What happens to vested options

Vested options are yours, but they come with a clock. Most plans say something like: "You have X days from termination to exercise your vested options. If you do not exercise within that window, the options expire."

The standard exercise window in Indian startups is 90 days. Some employee-friendly companies offer 1, 5, or 10 years. A few have moved to indefinite windows. Read your plan or grant letter carefully — this is the single most important number in the document.

Once the window closes:

• Unexercised vested options expire.
• You have no claim to them, ever.
• The options return to the pool.

Exercise: what it actually means

Exercising an option means paying the strike price (also called exercise price) to convert the option into actual shares. From that moment, you are a shareholder, not just an option holder.

Two questions decide whether to exercise:

1. Do you have the cash for the strike price plus the tax liability at exercise?
2. Do you believe the company is worth more than your strike price plus a return for the risk of holding?

Exercising is a real cash decision. For unlisted startups, the cost can be significant and the resulting shares have no liquidity until the company gets acquired or listed.

Tax at exercise: the perpetual surprise

The Indian tax rules treat the difference between the fair market value (FMV) at exercise and the strike price as a perquisite — taxable as salary income in the year of exercise.

Example: 100 vested options at a 10 rupee strike price. FMV at exercise is 200 rupees. Perquisite value = (200 minus 10) times 100 = 19,000 rupees. This 19,000 is added to your salary income and taxed at slab rate, even if you never sell the shares.

This is where many ex-employees get burned. They exercise, owe tax on a paper gain, and then cannot sell the shares to fund the tax.

Listed shares held more than 12 months get LTCG at 12.5 percent. Unlisted shares need 24 months for LTCG, also at 12.5 percent. Short-term gains are taxed at slab rate.

The decision tree when you leave

Scenario A: listed company, vested options

You can usually exercise and sell on the same day through the company's broker. The cash from the sale covers strike price and tax. Net of tax, you walk away with whatever is left.

This is the cleanest path. Exercise as much as you can, sell what you do not believe in, and hold what you do.

Scenario B: unlisted startup, vested options, 90-day window

The hardest scenario. Three choices:

1. Let the options expire. Walk away. Often the right answer if the strike price is high or you do not believe in the long-term value.
2. Exercise within the window. Pay the strike price plus tax in cash, become a shareholder, hold until liquidity.
3. Negotiate an extension. Some companies will extend the window if you ask politely or as part of severance.

Run the math both ways. If exercising costs you 5 lakh rupees in cash and the shares might be worth 20 lakh in 5 years (at a 60 percent IRR assumption), the bet might be worth it. If the shares might be worth 8 lakh in 5 years, the math is far weaker.

Scenario C: unlisted startup, indefinite window

Best of all worlds. You can wait until a clear liquidity event (acquisition, IPO, secondary buyback) before exercising. No tax burden until you exercise. No expiry pressure.

Companies offering indefinite or long exercise windows have grown in number. If your offer letter does not include this, ask before you sign.

What to negotiate at the exit

If you have any leverage at the exit conversation, negotiate three things:

• Extended exercise window. Ask for 1 to 5 years in writing.
• Cashless exercise mechanism. The company facilitates strike payment from a future liquidity event.
• Vested-now acceleration on near-cliff options. If your next vesting tranche is 30 days away, ask for it.

Companies often agree to one of these but rarely all three. Pick the one that delivers the most value for you.

Common ESOP exit mistakes

• Forgetting the exercise deadline. Diary it the moment you give notice.
• Exercising without cash for the tax liability. The tax on exercise is real, the shares may not be liquid.
• Treating ESOPs as bonus money. They are an investment with binary outcomes.
• Not reading the original grant agreement. Plans differ in critical ways.
• Selling listed shares immediately on exercise without considering LTCG vs STCG. A few weeks of patience can change the tax bill significantly.

The verdict

ESOPs are not free money. They are a structured bet that the company you leave will create value over the next 5 to 10 years and that the timing of liquidity will align with your tax position. Done right, ESOPs make a real wealth difference. Done carelessly, they are a paperwork nightmare with a tax bill at the end.

The day you leave is the day you must act. Read the plan. Calendar the deadline. Run the cash math. Then make the call. Most ex-employees who lose their ESOP value do not lose it because the company failed — they lose it because they ran out of time. Do not be that statistic.