Vesting guide for startups: schedules, cliffs and types

Equity is one of the most powerful tools a startup has, but it only works if the people receiving it understand how it works. Founders are expected to get vesting right early, because it affects hiring, fundraising, exits, and who owns what when things change.

This guide breaks down vesting schedules, cliffs and the main types of equity compensation, plus what to think about when it’s time to exercise stock options. And because equity events can turn into real money in USD, EUR and GBP fast, it also covers how Wise Business can help you receive, hold and convert funds across currencies, with less friction.

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The contents of this article is for informational purposes only and does not constitute legal or tax advice. Decisions related to tax should be made after thorough research, consultation and verification from a qualified financial and legal advisor.

What is vesting?

Vesting is how someone earns ownership of equity over time or after specific conditions are met. Instead of handing over all the value on day one, the company sets rules for when shares (or rights to shares) become the person’s to keep. In short, it’s earning ownership of a set timeframe.

In startups, vesting is most common in equity compensation like stock options and founder shares. It’s also used in other benefit plans, where an employer contribution transfers to you after you’ve stayed long enough.

Vesting is not the same as owning tradable shares today. With stock options, vesting typically unlocks the right to buy shares later at a fixed exercise price. With restricted stock units (RSUs), there's no purchase involved. Holders simply wait for the conditions to be met, at which point the shares are delivered to them.¹

Importance of Vesting for Founders and Employees

Vesting helps both employers and employees in many ways including:

• Stops shares from being tied up with people who are no longer part of the company
• Helps investors trust the team will stay long enough to build value
• Makes equity compensation feel fairer across different join dates and roles
• Creates a clear framework for leavers, disputes, and replacements
• Helps employees understand what they’ve actually earned, and when they can exercise stock options
• Supports better hiring because candidates can compare offers on like-for-like vesting terms

Key Components of Startup Vesting

The Vesting Cliff Explained

A vesting cliff is a minimum period you must stay before anything vests. The classic setup is a one-year cliff, meaning zero equity is earned until month 12. After the cliff, vesting usually continues in smaller chunks (monthly or quarterly). A one-year cliff is widely used to avoid granting ownership to someone who wasn’t a long-term fit.¹

Vesting Commencement Dates

The vesting commencement date is the official start date from which vesting is calculated.. Often it’s the start date of employment, or a founder’s service start date. In founder negotiations, commencement dates can become a sticky point. Some investors allow credit for time already spent building, while others reset vesting from the financing close.

Understanding Unvested vs. Vested Shares

Unvested equity is the portion you haven’t earned yet. If you leave, it typically returns to the company, often back to the option pool for future hires.

Vested equity is earned. With stock options, vested usually means you can now choose to exercise stock options (subject to plan rules). With RSUs, vested often means the shares/value are delivered, and taxed as employment income in many cases.

What is a vesting schedule?

A vesting schedule is the timeline and formula that decides how equity vests. It states how much you can earn, when the cliff hits, the vesting frequency after that, and what happens on leaver events.

How long should a vesting period be?

In the UK, most startup vesting periods land in the 2–4 year range, with 4 years appearing as a common norm for founders and employees. Founders and employees often use similar timelines, because it’s familiar to investors and candidates, and it keeps equity planning consistent across the business.

Founder vesting periods also show up in term sheet negotiations. It helps to understand them before closing a funding round, when these terms can move fast. According to HSBC Innovation Banking's 2025 Term Sheet Guide, a four-year vesting period with a cliff was the most common structure seen in 2024 term sheets.²

Vesting Frequency: Monthly vs. Quarterly

Monthly vesting is common because it smooths out equity earning and feels predictable to employees. Quarterly vesting reduces admin and board paperwork, but can produce uneven outcomes when someone leaves mid-quarter.

Whichever you pick, apply it consistently across all grants.. Changing frequency later can create confusion, especially once you have multiple grants, refreshers, and promotions running in parallel.

Types of Vesting Schedules

Time-Based Vesting

Time-based vesting means equity vests as someone keeps working for the business. It’s generally considered the simplest to run and the easiest for employees to understand. It’s also the easiest way to keep incentives aligned without endless debates over hitting specific milestones.

The 4-year schedule with a one-year cliff is a straightforward example of this in practice.

Milestone-Based Vesting

Milestone-based vesting unlocks equity when a specific outcome happens. That could be an IPO, revenue target, product delivery, regulatory approval, or a funding round. Unlike time-based vesting, staying at the company isn't enough on its own. The equity is tied to hitting a defined goal. That can work well when the milestones are clear and objective, but vague targets create disputes down the line, and metrics that are easy to manipulate tend to drive the wrong decisions.

Hybrid Vesting Models

Hybrid vesting blends time-based vesting with milestones. For example: 50% vests over time, and 50% vests only if the company hits ARR targets. This can help when one founder is full-time and another is part-time, or when a senior hire is taking a big pay cut and wants clearer upside protection tied to delivery.

What is Reverse Vesting for Founders?

Reverse vesting is common for founder shares in the UK. The founder is the registered shareholder from day one, but the shares can be forfeited or converted if the founder leaves before the vesting period ends.

Investors expect it because they’re backing the people, not just the product. This type of founder vesting focuses on gradually unlocking founder shares, which protects the company if a co-founder leaves early.²

What is Advanced Vesting?

Single-trigger acceleration means vesting speeds up the moment an acquisition closes, regardless of what happens to you afterwards. It's straightforward for founders and employees, but acquiring companies tend to resist it because they want key people to stay once the deal is done.

Double-trigger acceleration requires two things to happen: the acquisition, and then a separate event such as being let go without cause or having your role significantly changed. You're protected if the new owner pushes you out, but you don't walk away with unvested equity simply because the company was sold.

It's worth knowing which applies to you before you sign, because it directly affects what you receive if the company is acquired.

Upfront Vesting Options

Upfront vesting is when some equity is treated as vested immediately. This can show up as a percentage vested on day 1 for founders, especially if meaningful value was created before a funding round.

HSBC notes some term sheets specify how much is vested on day 1, and that many founders have less than 25% pre-vested at the start.² It’s negotiable, but you’ll want a clean rationale.

Right of First Refusal and Exercise Prices

A right of first refusal (ROFR) lets the company and sometimes other shareholders buy shares before they’re sold to an outside party. It’s a common control mechanism in private companies. Exercise prices (also called strike prices) matter just as much as the vesting schedule. They determine how much it costs to exercise stock options. For globally-backed UK startups, that payment may need to be made in USD, which turns vesting admin into currency planning, especially when working with international investors.

With Wise Business, you can send payments in USD directly from your account without needing a separate US bank account, keeping the process straightforward on both sides.

What is an example vesting schedule?

Here’s a standard time-based vesting schedule often seen for founder shares and employee stock options: 4 years total, with a one-year cliff, then monthly vesting Example: 1,200 options granted, start date 1 Jan 2026

If the person leaves on 1 Oct 2028, they keep only what’s vested to that date. The rest is unvested and typically returns to the company.

What are the Benefits and Challenges of Vesting?

Vesting protects both sides of the employment relationship, but it comes with real trade-offs worth knowing before you set your structure.

Benefits

• Better retention without overcomplicating incentives: A vesting schedule rewards long-term contribution and reduces the quick win incentive. People earn ownership by showing up, shipping, selling, and sticking through the messy middle.It also gives founders a rational, written answer when someone wants equity “because they believe in the mission”.
• Cleaner cap table that avoids awkward buybacks: Vesting protects the cap table from passengers. If someone leaves early, unvested equity can be recycled into the option pool. That matters when you’re hiring later and don’t want to explain why 8% of the company belongs to someone who left in pre-seed.
• More investable founder equity: Investors often expect founder vesting as part of being funding-ready, especially when raisingventure capital. It’s a priority topic to negotiate early, even when term sheets are silent. A standard structure can speed diligence and reduce legal back-and-forth.

Challenges

• Admin complexity grows fast: Spreadsheets work until they don’t. Once you have multiple grants, different start dates, cliffs, refresh grants and leaver cases, a small mistake becomes a big argument. Ensure you have clear documents, a consistent policy, and someone accountable for the equity record.
• Milestones can create perverse incentives: it can push people toward short-term thinking, people optimise for the metric that unlocks equity, not the metric that builds durable value. If you use milestones, make them objective, measurable, and hard to game. And avoid milestones that depend on one person’s opinion.
• Legal and tax risk considerations: Vesting should be properly documented in core agreements. Tax implications can be significant too. So if you change vesting terms casually, you can trigger unintended consequences for tax and governance. Getting professional advice before changing your structure is worth the investment.

How should you manage vesting in your startup?

Start with a founder-level policy, then apply it consistently. Investors, candidates, and your future self will all find it easier to work with a clear, consistent structure where any exceptions are documented, rather than a different arrangement for every grant with no clear rationale behind it.. Put vesting terms in the right documents and integrate vesting provisions into shareholder/founder agreements and relevant contracts, not informal promises.

For employees, make the equity story simple: what you get, when it vests, what it costs to exercise, what happens if you leave, and where tax might show up.

Exercising Vested Options

Vesting unlocks the ability to exercise stock options, but doesn’t force it. Exercising is the act of paying the exercise price to buy shares. Before anyone exercises, they should confirm the vested amount, the deadline to exercise (especially after leaving), and the total cost including potential tax. Option exercise is separate from vesting, and typically only vested options can be exercised unless early exercise is allowed.¹

This is where cashflow gets real. If the exercise price or tax bill is due in USD, a multi-currency account can remove friction. WithWise Business, founders can hold USD and convert to GBP at the mid-market exchange rate when timing is favourable, instead of taking whatever a bank feels like offering that day.

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What happens when an employee leaves?

Typically, unvested options are forfeited and return to the option pool. Vested options often have a limited post-termination exercise period. A 90-day post-termination exercise period has historically been common, although some companies offer longer windows.¹ Whatever your policy is, put it in writing and highlight it in offboarding.

For founders, leaver outcomes usually depend on good leaver vs bad leaver definitions. Unvested shares may be converted into worthless deferred shares for a good leaver, while bad leaver treatment can extend to vested and unvested shares.

Tax implications

In the UK, shares and options offered by an employer are generally subject to tax, with some schemes offering tax advantages. If it’s not a tax-advantaged scheme, you may need to report Income Tax and National Insurance via Self Assessment if it’s not handled through payroll.³

Different equity compensation types can trigger tax at different moments: grant, vest, exercise, sale, or delivery. For EMI schemes specifically, HMRC distinguishes between time-based options, which vest after a set period and can include performance milestones, and specified-event options, which only become exercisable when a defined trigger occurs such as a sale or exit.⁴.

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Good vesting is less about being strict, and more about being clear. Align vesting schedules with how value is built in your company, then communicate the rules clearly. Use market norms unless there’s a strong reason not to.

Transparency is part of the deal. If equity compensation is meant to motivate, people need to understand it without a decoder ring, especially around cliffs, leaver terms, and how to exercise stock options.

Manage global investments and equity with Wise Business

Vesting is about earning equity over time, but the financial impact often lands the day you exercise stock options, receive an exit payout, fundraising closes, or tax deadlines.

Wise Business can help you stay organised when those moments arrive, by letting you hold and convert 40+ currencies, with local account details in 8+ so USD and EUR inflows can behave more like domestic money movement.

It also helps with operations around equity moments: paying cross-border advisors, covering legal bills, or sending funds to employees who need to exercise stock options in a different currency. Faster, clearer fees, fewer surprises.

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• 👥 Run payroll and make international payments for up to 1,000 employees all over the world

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FAQs

What happens to my shares if I leave before the cliff?

Usually, nothing vests before the cliff. So if you leave before the one-year cliff, you typically walk away with no vested equity from that grant.¹ For founders on reverse vesting, the mechanics differ, but the outcome can be similar: the unvested portion can be forfeited or converted based on the agreement.

What is the difference between cliff vesting and graded vesting?

Cliff vesting means nothing vests until a set date (often 12 months). Graded vesting means equity vests gradually in smaller increments (often monthly or quarterly).Many startups combine them: a one-year cliff, then graded vesting for the remaining period.¹

Why do founders have reverse vesting?

Reverse vesting keeps founders incentivised to stay and protects the business (and investors) if a founder leaves early. Investors generally expect founder shares to be subject to reverse vesting in the UK. It also helps avoid long-term ownership getting stuck with someone no longer contributing, which can make hiring, fundraising and governance harder.

Source used in this article:

1. Carta — Vesting Explained: Schedules, Cliffs, Acceleration, and Types
2. HSBC Innovation Banking — Founder vesting: What early-stage founders need to know:
3. GOV.UK — Tax and employee share schemes: Overview
4. HMRC — ETASSUM54340 - Enterprise Management Incentives (EMI)
5. HMRC — ERSM20193 - Employment-related securities and options

Sources last checked: 25-Mar-2026