For many founders, launching an employee stock option plan (ESOP) feels like a milestone. It signals that the company is growing, hiring and thinking long term. But before any options can be granted, there is an important decision to make: how much equity should be reserved for employees?
This is where the ESOP pool comes in.
Founders often ask the same questions when setting up an ESOP for the first time. How big should the pool be? What happens if it turns out to be too small? And do you only get one chance to get it right? The good news is that an ESOP pool is not a one-time decision set in stone. While it is important to think carefully about the size of the pool from the outset, it can usually be expanded as the company grows and its needs change.
In this blog, we'll explain what an ESOP pool is, how founders typically determine the right size and when it makes sense to increase it. Keep reading!
An ESOP pool is a dedicated allocation of shares that can be used to reward employees through stock options. Rather than granting equity directly from founder holdings every time a new employee joins, companies reserve a specific percentage of shares that can be distributed over time.
The purpose is simple: to give employees a stake in the company's future success.
For startups in particular, equity can be a powerful recruitment and retention tool. While larger companies may be able to compete primarily on salary, growing businesses often need additional ways to attract talented people.
Consider a startup that is hiring its first Head of Engineering. The company may not be able to match the salary offered by a large multinational employer. However, offering meaningful equity gives the candidate an opportunity to share in the value they help create. If the company succeeds, the reward can be significant.
This is why many of today's most successful startups have used employee ownership as part of their growth strategy from an early stage.
Before deciding how much equity to reserve, founders should think about where the business is heading over the next few years.
One of the biggest mistakes companies make is creating an ESOP pool based solely on their current team size. A better approach is to consider future hiring plans.
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The answers to these questions will help determine how much equity you are likely to need.
For example, a startup with five employees that plans to hire a CTO, Head of Sales, Product Manager and several engineers will require a larger pool than a business expecting only one or two additional hires.
Once founders have estimated future hiring needs, they can establish the ESOP scheme, obtain the necessary approvals and begin issuing option grants.
The most effective ESOP pools are built around a hiring strategy rather than a percentage chosen at random.
There is no universal answer to this question because every company is different. However, many startups reserve between 10% and 15% of company equity for employee ownership. This range has become common because it generally provides enough flexibility to reward key hires while avoiding excessive dilution.
That said, the right number depends on several factors.
A business planning rapid expansion will usually require a larger ESOP pool than a company growing more gradually.
If you expect to hire across multiple departments in a short period of time, you'll likely need more equity available for future grants.
Senior hires often receive larger option grants than junior employees.
A startup recruiting experienced executives may need a larger pool than a company focused primarily on entry-level recruitment.
Earlier-stage companies often allocate larger ESOP pools because equity plays a more significant role in attracting talent.
As companies mature and generate more revenue, they may rely less heavily on equity-based incentives.
Many companies use ESOPs not only to attract employees but also to retain them over the long term.
This means reserving enough equity for future grants, promotions and refresh awards.
Most startups reserve this share of company equity for employee ownership, enough flexibility to reward key hires while limiting dilution.
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5%
Startup A · pool
CTO
Head of Sales
3 Software Engineers
Product Manager
Uses most of the pool fast needs more equity sooner than expected. |
12%
Startup B · pool
CTO
Head of Sales
3 Software Engineers
Product Manager
Still has capacity to reward future hires and retain key talent. |
The best pool size isn’t the largest, it’s the one that supports your growth strategy.
Startup A quickly uses most of its available pool and finds itself needing additional equity sooner than expected.
Startup B still has enough capacity to reward future hires and retain key employees.
This does not mean that 12% is always better than 5%. Rather, it highlights the importance of aligning your ESOP pool with realistic hiring plans.
The best pool size is not necessarily the largest one. It is the one that supports your growth strategy.
One of the most common concerns founders have is whether they need to determine the perfect ESOP pool size from day one.
Fortunately, the answer is no.
In most cases, companies can expand their ESOP pool later. In fact, many startups increase their pool multiple times throughout their growth journey. As businesses scale, hiring plans change. New opportunities emerge. Funding rounds create new growth targets. An ESOP structure that worked well at ten employees may not be sufficient at fifty employees.
This is why companies regularly review their employee ownership strategy and adjust it when necessary.
There are several situations where expanding an ESOP pool may be appropriate.
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1
Significant hiring aheadRecruitment plans have grown since the original pool was set. |
2
Preparing for investmentInvestors examine ESOP capacity and may encourage a buffer. |
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3
Most of the pool is allocatedA large share of options is granted time for more capacity. |
4
Strengthening retentionReward high performers and retain key talent as you mature. |
While increasing an ESOP pool is common, founders should understand the impact it can have on ownership percentages.
When additional shares are reserved for employee ownership, the percentage ownership of existing shareholders may decrease. This is known as dilution.
Before
| Founders 65% | Investors 35% |
After a larger ESOP pool
| Founders 55% | Inv. 30% | ESOP 15% |
Dilution isn’t necessarily bad if the equity attracts talent that grows company value, every shareholder can still come out ahead. Illustrative figures.
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Designing an ESOP pool is only the beginning. As a company grows, founders need a reliable way to manage option grants, monitor vesting schedules and understand the impact of future equity decisions.
Vestd helps companies simplify the entire process.
Through Vestd, founders can create and manage employee share schemes, issue option grants, track vesting, maintain cap tables and gain greater visibility into ownership structures as the business evolves.
Whether you're launching your first ESOP, reviewing your existing pool or planning for future growth, having the right systems in place can make employee ownership easier to manage and more effective as a long-term business strategy.
Create schemes, issue grants, track vesting and keep your cap table clear — as you grow.
Book your guided demo →