Understanding Equity Compensation: A Comprehensive Guide

Updated: July, 16, 2026

Takeaways

• Stock options give you the right to buy stock later; RSUs give you the stock itself once it vests — the tax timing is different for each 
• ISOs may qualify for long-term capital gains treatment if you hold at least two years from grant and one year from exercise, but exercising and holding can also create an Alternative Minimum Tax (AMT) liability 
• RSU withholding is often lower than your actual marginal tax rate, which is why the gap tends to show up when you file 
• Holding vested equity is an investment decision, not a default — a useful test is whether you’d buy the stock with that same amount of cash today 
• Equity decisions work best evaluated against your complete financial picture: taxes, concentration risk, cash flow needs, and what else you’re trying to fund 

If you receive equity compensation, you probably know exactly how many shares you were granted. You may know your vesting schedule by heart. You know when the next batch of RSUs hits your account, or exactly what your strike price is. 

But when I ask, “What are we actually trying to do with this money?” the answer is often less clear. 

And that is where I think people get equity compensation backwards. 

The grant matters, of course. But it is really just the beginning. The bigger questions are what the equity means for your tax bill, how much of your wealth is tied to one company, and whether this money could be supporting, or potentially complicating, everything else you are trying to accomplish. 

Equity compensation, including restricted stock units (RSUs), stock options, and employee stock purchase plans (ESPPs), can be an incredibly valuable part of your total compensation. It is also one of the most commonly misunderstood. 

So before you automatically exercise, hold, or simply let another vesting event pass without much thought, it helps to understand what you actually own, when you owe taxes, and which decisions are yours to make. 

The three main types of equity compensation

Equity compensation generally comes in three primary forms: stock options, restricted stock units, and employee stock purchase plans. Each works differently, particularly when it comes to ownership and taxes. 

Understanding those differences is the starting point. The planning happens in what you decide to do next. 

Stock options: You have the right to buy, but you don’t own the stock yet

Stock options give you the right to purchase company stock at a specific price, called the exercise or strike price. That price is generally established when the options are granted. 

The important distinction is that you do not own the stock yet. You own the option to buy it. 

There are two primary types of stock options: Incentive Stock Options (ISOs) and Non-Qualified Stock Options (NSOs). They may look similar on your benefits portal, but the tax treatment is very different. 

ISOs may receive preferential tax treatment if certain holding requirements are met. Generally, you must hold the stock for at least two years from the grant date and at least one year from the exercise date to qualify for long-term capital gains treatment on the appreciation above the exercise price. 

NSOs work differently. When you exercise an NSO, the difference between the strike price and the fair market value of the stock is generally treated as ordinary compensation income. 

For example, let’s say you exercise 10,000 NSOs with a $10 strike price when the stock is trading at $50 per share. The $40 difference between the strike price and the market value, multiplied by 10,000 shares, creates $400,000 of ordinary income. 

Even if you do not sell the stock. 

This is where people get surprised. They exercise the options, hold the shares, and then realize at tax time that they created a significant tax liability without necessarily creating the cash to pay it. 

Some employers withhold taxes at exercise. Others may not withhold enough to cover your actual liability. Either way, if you are planning to exercise and hold, understanding the potential tax bill is just as important as understanding the stock price. 

Restricted Stock Units (RSUs): Simple to receive, easier to misunderstand

RSUs are conceptually simpler. When your RSUs vest, you receive the stock. You do not have to purchase the shares or decide whether to exercise an option. 

But simple does not mean tax-free. 

The value of your RSUs when they vest is generally taxed as ordinary income in that calendar year, whether you sell the shares or continue to hold them. 

Your employer will typically sell or withhold a portion of the shares to cover taxes. This is where I hear, “But they already took taxes out.” 

Yes. They withheld taxes. 

That does not necessarily mean they withheld enough taxes. 

For high earners, particularly those living in states with income tax, the withholding rate may be lower than the employee’s actual marginal tax rate. That difference can turn into a very unpleasant surprise when the tax return is prepared. 

Then comes the next decision: Should you sell the RSUs when they vest or hold the stock? 

If you sell at vest, you are converting the equity into cash and reducing your exposure to the company stock. If you hold, you are making an investment decision. 

That distinction matters. 

Once the shares vest, I like to ask a very simple question: If I handed you the same amount of money in cash today, would you use it to buy this stock? 

If the answer is yes, holding may align with your investment strategy. 

If the answer is no, it is worth asking why you are holding it simply because your employer gave it to you. 

Holding is a decision — not a default. 

Employee Stock Purchase Plans (ESPPs): Don’t ignore the discount

Employee Stock Purchase Plans allow employees to purchase company stock at a discount, often up to 15% below the market price. Some plans also include a lookback provision that uses the lower stock price from the beginning or end of the offering period. 

In plain English, that can create a pretty meaningful discount. 

Typically, you contribute a percentage of your paycheck during an offering period, often six months. At the end of that period, the accumulated money is used to purchase company stock at the plan’s discounted price. 

If the stock appreciated during the offering period and the plan includes a lookback provision, the effective discount can be even greater. 

ESPPs can be attractive, but once again, the important decision is what happens after the stock is purchased. 

Selling immediately allows you to capture the discount, recognize the applicable tax consequences, and convert the shares to cash. Holding the stock introduces the same question we discussed with RSUs: are you intentionally choosing to invest in this company, or are you holding the stock because that is simply what happened by default? 

There is a difference. 

Vesting is usually straightforward. The decisions are not

Most vesting schedules are relatively easy to understand. A common structure is four years with a one-year cliff. Nothing vests during the first year, 25% vests at the one-year mark, and the remaining shares vest monthly or quarterly. (vesting schedule details) 

The mechanics are usually clear. 

The decisions around exercising, selling, and holding are where the planning becomes more complicated. 

Should you early exercise stock options?

Some companies allow employees to exercise stock options before the options have fully vested. This is known as an early exercise. 

For certain stock options, particularly when the strike price is close to the current fair market value, an early exercise may create a tax planning opportunity. Depending on the type of equity involved, an 83(b) election may allow you to recognize income earlier and begin the holding period for potential long-term capital gains treatment. 

But there is another side to the decision. 

Early exercise requires cash. You are taking money you could use elsewhere and investing it in company stock that may not yet be liquid. If you leave the company before the shares vest, the company may have the right to repurchase the unvested shares at the price you paid. 

You may receive your original investment back, but your money was tied up in the meantime. That is an opportunity cost. 

So when evaluating an early exercise, I am not simply asking whether the strategy can save taxes. I want to know how much available cash you have, how confident you are that you will remain with the company, how the strike price compares with the current value of the stock, what your income looks like this year, and what else you may need that cash for. 

It is not an “always do it” or “never do it” strategy. 

It is a calculation. 

The tax traps people often don’t see coming

Salary is relatively predictable. You earn income, taxes are withheld, and you receive a paycheck. 

Equity compensation can create tax liabilities on a completely different schedule, which is why people are often caught off guard. 

• Alternative Minimum Tax on ISO exercises. When you exercise ISOs and continue to hold the stock, the difference between the strike price and fair market value may be included as an Alternative Minimum Tax preference item. You have not sold the shares or received cash, but you may still create an AMT liability. The especially painful scenario is when the stock declines after exercise — you may have calculated AMT based on a much higher stock value even though the shares are now worth significantly less. 

• Insufficient withholding on RSUs. Employers often withhold federal taxes on supplemental income at a flat rate. For a high-income employee, that rate may be significantly lower than the person’s actual marginal tax rate. The shortfall does not disappear. It often shows up when the tax return is filed. 

• Concentration risk that feels like wealth. You vest $500,000 of RSUs and suddenly your balance sheet looks much larger. It feels like you have accumulated significant wealth. But if 80% of your net worth is tied to one company, you also have significant exposure to one stock — those two things can be true at the same time. Selling and diversifying may feel like you are giving up future upside, particularly if you strongly believe in your employer. But concentration risk is still risk, even when you love the company. 

Calculating an AMT liability can be complex, and paying AMT isn’t automatically a loss — it can generate a credit that carries forward to future years. Working with a tax advisor helps model these scenarios before an exercise decision, not after. 

What else are you trying to fund?

This is the question I think people skip most often. 

Equity compensation is usually discussed in isolation. How much did I receive? When does it vest? What is the stock worth? Should I exercise? 

But your equity does not exist in isolation from the rest of your life. 

Maybe you are paying for childcare. Maybe you want to buy a home. Maybe your parents need financial support. Maybe you are considering leaving your job, starting a company, taking a sabbatical, or retiring earlier than you originally planned. 

All of those things require money, and unfortunately, life does not always schedule major expenses around your next vesting date. 

If every vesting event automatically becomes “hold and see what happens,” you are making a decision, even if it does not feel like one. You are deciding that continuing to own the company stock is more important than liquidity, diversification, or using the money toward another financial priority. 

That may absolutely be the right decision. 

But it should be intentional. 

The question should not simply be, “Do I think this stock will go up?” 

The better question is, “What am I trying to do with this money, and does continuing to hold this stock support that goal or work against it?” 

Looking at equity compensation as part of the complete financial picture

At Brighton Jones, we look at equity compensation as a capital allocation decision, not simply a compensation event. 

The question is rarely just, “Should I exercise?” or “Should I hold?” 

Instead, we look at your tax situation this year and next, how much of your total net worth is concentrated in company stock, your expected cash flow needs over the next 12 to 36 months, and the opportunities or obligations that may require liquidity. 

This is where integrated wealth planning becomes so important. Tax planning, investment management, and cash flow planning should not be three separate conversations. 

They are one conversation. 

Before making your next exercise, sell, or hold decision, consider asking yourself a few questions. What is my marginal tax rate this year compared with what I expect next year? How much of my net worth is tied to this one company? What are the three most important things I may need cash for over the next two years? And if I hold this stock and it declines 30%, what changes about my financial plan? 

Those answers tell me much more than the size of your grant ever could. 

Frequently Asked Questions

What’s the difference between ISOs and NSOs?

Incentive Stock Options may receive preferential tax treatment if certain holding requirements are met. Generally, the shares must be held for at least two years from the grant date and one year from the exercise date to receive qualifying disposition treatment. 

Non-Qualified Stock Options are generally taxed as ordinary compensation income when exercised based on the difference between the strike price and the fair market value of the stock. 

ISOs may also create Alternative Minimum Tax implications when exercised and held, while NSOs generally do not create the same AMT preference item. (more on what triggers AMT) 

Should I sell RSUs immediately when they vest?

It depends on your concentration risk, tax situation, and what else you are trying to fund. 

One question I often use is: If you received the same amount in cash today, would you buy your company stock with it? 

Selling at vest can convert the equity into cash and reduce concentration risk. Holding the shares is an investment decision and should be evaluated the same way you would evaluate any other investment in your portfolio. 

What Is an 83(b) Election?

An 83(b) election allows a taxpayer, in certain circumstances, to elect to recognize income on restricted property when the property is transferred rather than as it vests. 

This may be relevant for restricted stock or certain early-exercised stock options. If the stock appreciates, recognizing income earlier may affect the tax treatment of future appreciation. 

The election generally must be filed with the IRS within 30 days of the transfer of the property. Because the deadline and tax implications are significant, the strategy should be evaluated carefully with your tax and financial professionals. 

The grant is only the beginning

Your equity compensation is not just about how many shares you received or when they vest. 

It is part of your income. It affects your taxes. It can become a significant portion of your net worth. And, perhaps most importantly, it may be one of the largest financial resources available to fund the life you are actually trying to build. 

So before your next vesting event or exercise decision, do not just ask what the stock is worth. 

Ask what you need the money to do. 

At Brighton Jones, our Personal CFO approach looks at equity compensation in the context of your complete financial picture, including tax strategy, investment management, cash flow, and your long-term goals. Because the right decision is rarely about the grant alone. 

It is about what the grant makes possible. 

About the Author: Celia Meagher, CFP®, is a Lead Advisor at Brighton Jones. She helps high-income professionals and families design tax-efficient investment strategies and retirement plans aligned with their values and long-term goals.

Disclosure: This content is for informational and educational purposes only and should not be construed as individualized advice. Brighton Jones, its affiliates, and employees do not provide personalized investment, financial, tax, or legal advice through this communication. For individualized advice tailored to your specific circumstances, please consult with the professional advisor of your choosing.