Equity compensation shows up in job offers with increasing frequency – not just at startups, but at established companies across technology, finance, and professional services.
For many candidates, it’s also the part of the offer they understand least. Stock options, RSUs, vesting schedules, cliff periods, strike prices – the terminology alone is enough to make most people nod along in an offer conversation without fully processing what they’re agreeing to.
That’s a problem, because equity compensation can be worth significantly more than your base salary over time – or it can be worth nothing at all.
Understanding what you’re being offered, how it works, and what conditions determine its value is one of the more important financial decisions you’ll make in your career.
What Is Equity Compensation?
Equity compensation is a form of non-cash pay that gives employees an ownership stake in the company they work for. Instead of – or in addition to – paying you purely in salary, the employer grants you shares, the right to purchase shares, or units that convert to shares under specific conditions.
The value of that ownership stake is tied to the company’s performance: if the company grows and its value increases, your equity becomes worth more. If it doesn’t, your equity may be worth little or nothing.
Companies offer equity compensation for several reasons. It aligns employee incentives with company performance – you benefit directly when the company does well.
It also allows companies, particularly early-stage ones, to offer competitive total compensation packages without paying high cash salaries they may not yet be able to sustain.
For employees, it’s an opportunity to participate in the financial upside of a company’s growth in a way that a salary alone doesn’t provide.
Types of Equity Compensation
The term equity compensation covers several different instruments, and the type you’re offered matters significantly for both how the equity works and how it’s taxed.
Restricted Stock Units (RSUs)
RSUs are the most common form of equity compensation at larger, publicly traded companies. The company grants you a specific number of shares that vest over time according to a schedule.
When the shares vest, you receive them – at that point they’re real shares you own and can sell. Before vesting, RSUs are a promise of future shares rather than shares themselves.
RSUs are generally simpler to understand than options because the math is straightforward: the number of shares multiplied by the stock price at vesting equals your payout. You don’t need to pay anything to receive them.
The primary risk is that the stock price at vesting is lower than when the grant was made, which reduces the value – but RSUs don’t expire, so they retain whatever value the shares have at vest date.
Stock Options
Stock options give you the right to purchase company shares at a specific price – called the strike price or exercise price – regardless of what the market price is when you exercise the option.
If the market price rises above your strike price, your options are “in the money” – you can buy shares at the lower strike price and either hold them or sell at market value for an immediate gain.
If the market price never rises above your strike price, your options are “underwater” and effectively worthless.
There are two main types of stock options: Incentive Stock Options (ISOs), which are only available to employees and have favorable tax treatment, and Non-Qualified Stock Options (NSOs or NQSOs), which can be granted to employees, contractors, and board members and are taxed as ordinary income when exercised.
The distinction matters significantly for your tax planning.
Employee Stock Purchase Plans (ESPPs)
ESPPs allow employees to purchase company stock at a discount – typically 10–15% below market price – through payroll deductions over a defined offering period.
This discount represents immediate value: buying at 15% below market and selling immediately produces a guaranteed return before any stock price movement.
ESPPs are most common at publicly traded companies and are generally considered one of the more straightforward forms of equity compensation to evaluate.
Performance Shares and Phantom Stock
Performance shares are grants tied to specific company or individual performance metrics – you receive shares if defined targets are hit within a specified period.
Phantom stock provides a cash payment equivalent to the value of a specified number of shares without actually transferring ownership – it’s common in private companies that want to offer equity-like incentives without diluting ownership.
Both are less common than RSUs and options but appear frequently enough to be worth understanding.
How Vesting Works
Vesting is the mechanism by which you earn your equity over time rather than receiving it all at once. The most common vesting schedule at technology companies is four-year vesting with a one-year cliff – meaning nothing vests until you’ve been with the company for one year, at which point 25% of your grant vests immediately.
The remaining 75% then vests monthly or quarterly over the following three years.
The cliff exists to protect the company from employees who join, collect equity, and leave quickly. If you leave before your cliff date, you walk away with no equity regardless of how much time has passed.
Understanding the cliff in any equity offer is essential – an offer with a generous equity grant and a two-year cliff is materially different from one with the same grant and a standard one-year cliff.
Accelerated vesting is a provision that some employment agreements include for specific circumstances – most commonly acquisition. If the company is acquired, single-trigger acceleration vests all your equity immediately.
Double-trigger acceleration requires both an acquisition and your termination or resignation following it. Which type your agreement includes affects how valuable your equity is in an acquisition scenario, which is the most common liquidity event for startup employees.
How Is Equity Compensation Taxed?
Taxation is where equity compensation gets complicated, and getting it wrong can produce a significant and unexpected tax bill.
The tax treatment varies by instrument type and the decisions you make about when to exercise or sell.
RSUs are taxed as ordinary income at vesting – the value of the shares on the day they vest is added to your taxable income for that year, and your employer typically withholds shares to cover the tax liability automatically.
When you later sell the shares, any gain above the vesting price is taxed as either short-term or long-term capital gains depending on how long you held them after vesting.
Non-Qualified Stock Options are taxed as ordinary income at exercise – the difference between the strike price and the market price on the day you exercise is treated as compensation income regardless of whether you sell the shares.
Incentive Stock Options have more favorable treatment: exercising ISOs doesn’t trigger ordinary income tax, though the spread may be subject to the Alternative Minimum Tax.
When you sell ISO shares, the gain is taxed at capital gains rates if you meet the holding period requirements.
The practical implication: large equity vesting events or option exercises can push you into a higher tax bracket for that year.
Planning around the timing of these events – particularly if you have discretion over when to exercise options – is worth discussing with a tax professional before you act rather than after.
How Equity Compensation Works in a Private Company
Equity in a private company works differently from equity at a publicly traded one in one critical respect: you can’t sell it. Public company RSUs vest, and you can sell the shares immediately.
Private company equity – whether options or RSUs – may sit illiquid for years, or indefinitely, until the company goes public, gets acquired, or creates a secondary market for employee shares.
This illiquidity creates several risks that public company equity doesn’t have. The company may never reach a liquidity event. The valuation at exit may be lower than the strike price of your options, making them worthless.
Preferred shareholders – typically investors – often have liquidation preferences that mean they get paid first in an acquisition, sometimes leaving little or nothing for common stockholders like employees.
When evaluating private company equity, ask specifically about the most recent 409A valuation (the independent appraisal of the company’s common stock value), the total number of fully diluted shares outstanding, and the liquidation preference stack.
These figures let you calculate what percentage of the company your grant represents and what conditions would need to be true for your equity to be worth a specific amount at exit.
What to Consider Before Accepting an Equity Offer
Evaluating an equity offer requires asking questions most candidates don’t think to ask.
The number of shares granted tells you very little without knowing the total shares outstanding – a grant of 10,000 shares in a company with 10 million shares outstanding represents a 0.1% stake; the same grant in a company with 1 billion shares outstanding is essentially nothing.
Always ask for your grant as a percentage of fully diluted shares, not just the raw share count.
For options specifically, understand the strike price relative to the current 409A valuation and the company’s most recent funding round price.
A wide gap between your strike price and the current preferred share price isn’t necessarily a problem – preferred and common shares are valued differently – but understanding the relationship helps you assess how much growth is needed for your options to be meaningfully in the money.
Also ask about the post-termination exercise window – the period after you leave the company during which you can still exercise vested options.
The standard window is 90 days, which can force a difficult decision: exercise options and pay the tax bill while the shares are still illiquid, or forfeit them.
Some companies have extended this window to years, which is a meaningful employee-friendly provision worth asking about.
Frequently Asked Questions
Conclusion
Equity compensation is one of the more complex elements of a total compensation package, but it’s not beyond understanding with the right framework.
The type of equity matters – RSUs, options, and ESPPs work differently and are taxed differently. The vesting schedule matters – the cliff date and vesting timeline determine when you actually earn what you’re being offered.
And for private company equity specifically, the percentage ownership and liquidation preference structure determine whether the number on paper ever translates to money in your account.
Ask the questions most candidates don’t ask: your grant as a percentage of fully diluted shares, the most recent 409A valuation, the liquidation preference stack, and the post-termination exercise window.
These aren’t aggressive questions – they’re the information any informed employee needs to evaluate what they’re actually being offered. Equity can be transformative compensation, or it can be noise in an offer letter.
The difference usually comes down to how well you understand what you’ve been given before you sign.
