What Is Vesting? A Complete Guide to How Vesting Works
If you receive equity compensation from an employer, understanding vesting is essential. Vesting determines when the shares granted to you through RSUs or stock options actually become yours, and it shapes nearly every financial decision you'll make in your equity planning.
Here, we’ll cover vesting in detail, including how it works with different equity vehicles, common vesting schedules, and various scenarios that can affect when and how shares vest. Let's start with the basics: what is vesting, and why does it matter?
What Is Vesting and How Does It Work?
Vesting is the process by which employers transfer ownership of company shares to you. When you’re granted RSUs or stock options, those shares are promised to you, but they’re not truly yours until you meet specific conditions. Once released, your shares are vested, meaning no further conditions stand between you and full ownership.
Vesting typically takes place over time: shares vest in batches (called tranches) periodically over the course of 3-4 years, often with a 1-year cliff (meaning your first tranche doesn't vest until you hit that 1-year mark). We’ll cover vesting schedules in greater detail below.
Vesting looks different depending on whether you hold RSUs or stock options.
Vesting for RSUs
RSUs vest when you meet certain contractual obligations. This is usually time-based: shares will begin vesting once you’ve been with the company for some number of years, typically on a 4-year schedule with a 1-year cliff. However, vesting could also be performance-based, like a revenue milestone or product launch.
When an RSU vests, it becomes yours automatically; the shares are simply delivered to you, and no action is required on your part. This is one of the key features of RSUs; you don’t need to make any decisions related to the acquisition of your shares.
At vesting, RSUs are treated as ordinary income by the IRS and will be taxed based on their fair market value on that date. Your employer will typically withhold cash or a portion of your shares to cover this amount, but there are other tax considerations to take into account. It’s worth discussing RSU tax planning with your financial advisor who understands their complexity.
Vesting for Stock Options
Like RSUs, stock options vest according to a set schedule or performance metrics. However, vesting does not give you the shares automatically. Instead, it gives you the right to buy the shares at a set price, known as the strike or exercise price.
You do not need to exercise your stock options as soon as they vest. Deciding if and when to buy usually depends on two main factors: your optimism about the company’s long-term growth trajectory, and how the investment fits into your broader financial plan. Ultimately, the choice should align with your personal goals, your cash flow needs, and your tolerance for a concentrated investment.
Because stock options depend on your decision to exercise, the vesting date itself is not a taxable event. Instead, you are taxed when you exercise.
NSOs (Non-Qualified Stock Options): You owe ordinary income tax on the spread between the strike price and the market value at exercise.
ISOs (Incentive Stock Options): The spread at exercise does not trigger regular income tax, but it may trigger Alternative Minimum Tax (AMT) depending on your holding period.
What Is a Vesting Schedule?
A vesting schedule outlines when and how your shares transfer to you. This is detailed in your equity grant agreement, which specifies your vesting triggers and structures.
Vesting triggers
Vesting is typically triggered by either time or performance; in some cases, it may be a mix of the two.
Time-based vesting: With a time-based vesting schedule, you’ll vest shares at regular intervals as you hit tenure milestones with your company. A 4-year vesting schedule with a 1-year cliff is most common.
Performance-based vesting: Shares vest when you hit a specific goal, such as a revenue target, product launch, or company valuation threshold. This structure is more common for executive compensation packages.
Hybrid vesting: A combination of time and performance triggers. You must reach both a tenure milestone and a performance target for shares to vest. This is increasingly common at growth-stage companies.
Vesting structures
The vesting structure refers to how your equity is distributed over time: in one lump sum, in gradual increments, or right away.
Cliff vesting: A portion of your shares vest all at once on a single date. The most common example is a 1-year cliff, where nothing vests until you hit the 12-month mark.
Graded vesting: Shares vest incrementally over time in smaller tranches. For example, 25% might vest at the one-year cliff, with the remainder releasing quarterly or annually until you've fully vested.
Immediate vesting: Shares vest right away, with no waiting period. This is not as common but does appear in certain 401(k) match structures and founder equity arrangements.
Vesting Acceleration
Vesting acceleration allows you to gain ownership of equity faster under certain conditions, such as a company acquisition or IPO. There are two main types: single- and double-trigger.
Single-trigger acceleration means one event causes your unvested shares to vest immediately. The most common trigger is an acquisition. If your company is bought by another, your remaining shares might vest all at once rather than according to their original schedule.
Double-trigger acceleration requires two things to happen before your unvested shares are released. The first trigger is typically a company event like a merger or acquisition. The second is a qualifying termination, meaning you're laid off, or your role is significantly changed as a result of the deal. Only when both conditions are met do your unvested shares accelerate.
Double-trigger is more common in standard employee equity agreements, while single-trigger tends to appear in executive packages. Either way, your grant agreement will specify whether acceleration applies to your equity and under what conditions, so it's worth knowing what yours says.
What Happens If You Leave Before You’re Fully Vested?
Unvested equity is typically forfeited if you leave or are terminated before vesting is complete. The exact terms, however, will depend on your type of equity.
With RSUs, any shares that have already vested are yours to keep, but anything unvested are forfeited. Similarly, unvested stock options are cancelled immediately. For your vested options, the time you have to exercise them depends entirely on your company's plan and the type of options you hold. While a 90-day post-termination exercise window is standard for Incentive Stock Options (ISOs) to retain their tax benefits, Non-Qualified Stock Options (NSOs) may offer a longer timeframe.
Some companies provide extended exercise windows for stock options, particularly for long-tenured employees. However, it is important to note that if an ISO exercise window is extended past 90 days, the IRS automatically converts those options into NSOs, which alters their tax treatment. Always check your specific grant agreement to verify your exact timelines.
How to Know When You’re Fully Vested
You're fully vested when all of the shares in your grant have met their vesting conditions and belong to you outright. For a standard 4-year grant with a 1-year cliff, that means you'll be fully vested at the four-year mark. Your original grant agreement will have this information.
The easiest way to track this is through your company's equity management platform, which will show your vesting schedule, upcoming vest dates, and how many shares have vested to date. That platform will likely notify you when a vesting event occurs, but it’s worth setting up your own calendar reminders around cliff dates and annual tranche releases regardless.
Get Expert Financial Planning Around Your Vesting Schedule
Sound financial planning helps maximize the value of company equity. An experienced financial advisor can guide you through every stage of this process. Whether you need to evaluate an equity package before accepting a new job or want to diversify your portfolio once you are fully vested, having an expert in your corner makes all the difference.
At Citrine Capital, we help entrepreneurs and tech innovators build smart long-term wealth management strategies. As a San Francisco-based financial advisory firm, our team understands how to create strategies that account for the complexities of equity compensation amidst the unique financial landscape of the Bay Area. That includes everything from QSBS planning for early-stage companies to 10b5-1 plans for founders and executives.
Request a meeting today to get started.
FAQs About Vesting
Is vesting the same as earnings?
Vesting and earnings are related but not the same thing. Company equity is part of your compensation, but you don't "earn" it the way you earn a salary. It's granted upfront and released over time according to your vesting schedule. Think of unvested shares as deferred compensation: they're promised to you, but contingent on meeting certain conditions. Once shares vest, they will have real, actionable value that you can hold, sell, and be taxed on.
Can vesting schedules change?
In most cases, your vesting schedule is fixed at the time of your grant and outlined in your grant agreement. That said, there are circumstances where it can change, such as a company acquisition, a renegotiated contract, or a new equity grant with different terms. Vesting acceleration provisions, if included in your agreement, can also speed things up under certain conditions. Any changes to your vesting schedule should be documented in writing and reviewed carefully before you sign off.
Do you lose unvested equity?
Generally, yes. Unvested shares are forfeited when you leave a company, whether you resign or are terminated. Any shares that have already vested are yours to keep, but whatever remains on the vesting schedule typically reverts to the company. This is why timing matters when considering a job change. Leaving just before a cliff or a large tranche date can mean walking away from significant compensation.
Is vesting taxable?
It depends on your equity type. With RSUs, vesting itself is the taxable event. You'll owe ordinary income tax on the fair market value of the shares the moment they vest. With stock options, vesting isn't taxable until you exercise. From there, the details depend on whether you hold ISOs or NSOs and how long you've held them. Either way, the tax implications of your equity are worth planning around well in advance.
What does it mean to be vested?
To be vested means you've met the conditions required for ownership of your shares; they're yours, with no further strings attached. You can hold, sell, and factor them into your broader financial plan. Being fully vested means all of the shares in your grant have cleared their vesting conditions. Being partially vested means some tranches have vested and others are still on the schedule, contingent on continued employment or performance.
About The Author
Jirayr Kembikian, CFP® is a wealth advisor, managing director and co-founder of Citrine Capital, a San Francisco-based wealth management and tax preparation firm serving tech professionals, founders, and business owners. He specializes in navigating the complexities of equity compensation, private investments, and Bitcoin wealth strategies. With over a decade of experience guiding clients through liquidity events and complex financial decisions, Jirayr brings a grounded yet forward-thinking perspective to building and preserving wealth.