How to Design an ESOP Vesting Schedule

01What a Vesting Schedule Is (and Who Designs It)

A vesting schedule is the set of rules, written into your ESOP plan and repeated in every grant letter, that decides when an employee’s granted options actually become theirs. On the grant date the options are promised but unvested: the employee owns nothing yet. As they stay and the schedule runs, options vest in tranches and become exercisable. Anything still unvested when the person leaves lapses back to your option pool.

This post is written for the company side: you, as founder or ESOP administrator, are the one who designs the schedule and then has to run it correctly for every grant. If you want the view from the employee’s seat, how vesting, exercise and exit feel to the option holder, that is covered in our ESOP lifecycle guide for employees. Here we stay firmly on design and administration. This topic sits inside the broader company-side ESOP guide, and it comes right after you have sized your option pool.

02The Standard Structure: 4-Year Vest, 1-Year Cliff

The market standard in Indian startups, and globally, is a four-year vesting period with a one-year cliff. It is so common that employees, investors and advisors expect it, so deviating from it needs a reason. Here is how the standard schedule runs.

Once the cliff passes, the remaining 75 percent vests in equal tranches, monthly or quarterly, over the next three years. That is the whole standard. Variations you will see: a longer total period (five years) for very senior grants, a shorter one (three years) to be competitive on talent, or a “back-loaded” schedule that vests more in later years to reward staying. Whatever you choose, write the exact schedule into the grant letter so there is no ambiguity later; our ESOP grant letter guide covers the wording.

03Why the Cliff Exists

A cliff is an initial period, almost always one year, during which no options vest at all. If the employee leaves before the cliff date, they walk away with nothing. On the cliff date, the entire first block (25 percent of a four-year grant) vests at once, and vesting continues normally after that.

The cliff does real work for the company. It protects your option pool and cap table from early or short-tenure exits: options only start converting to ownership once someone has stayed long enough to add value. Without it, a hire who leaves in month three would still walk away with a fractional slice of equity, and your cap table would slowly fill with tiny holdings owned by people no longer at the company. The cliff also aligns with reality, most attrition risk is concentrated in the first year.

04Time-Based vs Milestone Vesting

Most vesting is time-based: options vest simply because the employee stays employed as the clock runs. But you can also design milestone or performance vesting, where options vest when a defined goal is hit, a revenue target, a product launch, a funding round, a specific deliverable. Many companies combine the two, especially for senior hires and advisors.

05Monthly vs Quarterly Vesting

After the cliff, the remaining options vest in regular tranches, and you choose the frequency: monthly or quarterly are both standard and both perfectly fine. This is largely an administration decision, but it has a small fairness angle too.

• Monthly vesting is more granular and employee-friendly: a leaver gets credit for every full month served. The cost is volume, twelve vesting events a year for every grant, which is a lot to compute by hand across a growing team.
• Quarterly vesting is simpler to administer and reconcile, four events a year. The trade-off is that a leaver two months into a quarter gets no credit for those two months.

There is no wrong answer. Pick one, apply it consistently across grants, and make sure whatever tracks your vesting computes each tranche on the exact date. Manual monthly calculation across dozens of employees, each with a different grant date, is precisely where errors and disputes creep in.

06Accelerated Vesting: Single vs Double Trigger

Accelerated vesting means some or all unvested options vest earlier than the normal schedule when a defined event occurs, most often an acquisition or change of control. This is one of the most negotiated parts of an ESOP, because it decides what your team keeps if the company is sold before everyone has fully vested. There are two designs.

The post-termination exercise window

Separate from acceleration is what happens to already-vested options when someone simply resigns. Vested options do not automatically convert to shares; the employee has to exercise them (pay the exercise price) within a defined window after leaving, commonly anywhere from a few months to a longer period, as your plan specifies. Miss the window and even vested options lapse. Design this consciously: a very short window can feel punitive and force leavers to forfeit value they earned, while a long window keeps ex-employees on your cap table. Whatever you set, it must be in the plan and the grant letter, and your system must compute each leaver’s window and vested balance automatically. The mechanics of exercise and exit belong to a later post in this series.

07How to Administer and Track Vesting at Scale

Designing the schedule is half the job. The other half is running it correctly for every grant, every month, for years, as people join, get promoted (and receive top-up grants) and leave. This is where most founders quietly lose control. A spreadsheet works for the first handful of grants, then breaks: monthly tranches multiply, each employee has a different grant date, leavers need pro-rata and window calculations, and one wrong formula ripples through your ESOP register.

FAQFrequently Asked Questions