Restricted Stock Awards (RSAs), Restricted Stock Units (RSUs), and stock options are all forms of equity compensation, but they differ in how ownership works, when taxes apply and what planning decisions should be made to manage them effectively.
Executives may receive equity compensation that appears similar on the surface, yet the planning implications can be very different. One executive may owe tax at vesting, another may need cash to exercise stock options, and another may face an 83(b) election decision within 30 days. This article compares the three structures and focuses on the planning decisions they create for executives.
RSAs vs. RSUs vs. stock options: What is the difference?
Equity compensation is the broader category. An RSA grants actual shares at the time of the award, usually subject to forfeiture until vesting; an RSU is a contractual promise to deliver shares or cash after vesting; and a stock option gives the employee the right to purchase shares later at a fixed exercise price. An 83(b) election may apply to an RSA or, in some cases, restricted shares acquired through the early exercise of certain options. It generally does not apply to standard RSUs.
RSA vs. RSU vs. stock options
| Restricted Stock Award (RSA) | Restricted Stock Unit (RSU) | Stock Option | |
| What you receive | Actual shares at grant, restricted until vesting | Promise of shares or cash upon vesting | Right to buy shares at a fixed exercise price |
| When you own shares | At grant, subject to forfeiture until vested | At settlement, which may occur at vesting or later | When you exercise the option |
| How vesting works | Time-based or performance-based | Time-based or performance-based | Time-based or performance-based; must exercise before expiration |
| When taxation may occur | At transfer if a timely 83(b) election is filed, or as restrictions lapse | At vesting or settlement, as ordinary income | At exercise (and potentially at sale, depending on option type) |
| 83(b) eligibility | May be available, depending on award and transfer terms | Generally, no | Potentially, for restricted shares acquired through early exercise; depends on plan terms |
| Cash or exercise requirement | Generally, none | Generally, none | Yes; must pay the exercise price to acquire shares |
| If you leave the company | Unvested shares typically forfeited | Unvested units typically forfeited | Unvested options typically forfeited; vested options may have a limited post-termination window |
| Primary planning consideration | 83(b) election timing; tax at transfer vs. as restrictions lapse | Tax at vesting; concentration and diversification | Exercise timing; expiration; spread between exercise price and market value |
How RSAs, RSUs, and stock options work
Restricted stock awards (RSAs)
An RSA grants actual shares at the time of the award, subject to forfeiture until vesting conditions are met.
Restricted stock units (RSUs)
An RSU is a promise, not a share. The employee does not own shares at grant. Once vesting conditions are satisfied, the company delivers shares or their cash equivalent. Learn how RSUs work in more detail.
Stock options
A stock option gives the holder the right to buy company stock at a predetermined exercise price. Whether the option has intrinsic value at exercise depends on whether the company’s share price exceeds that price. The tax treatment and exercise strategy can differ materially, so it is very important to know if the award is a nonqualified stock option or an incentive stock option.
How are RSAs, RSUs, and stock options taxed?
RSAs are generally taxed as ordinary income when the restrictions lapse, based on the fair market value at that time, unless a valid 83(b) election was timely filed after the property was transferred.
RSUs are generally treated as ordinary income at vesting or settlement, based on the value of shares delivered. In many plans, vesting and share delivery happen at the same time; in others, settlement occurs later under the plan terms. Employers will often withhold taxes, sometimes through a sell-to-cover arrangement, in which a portion of shares are sold to cover the obligation.
Stock-option taxation depends on the type of option and the sequence of exercise and sale decisions. Nonqualified or nonstatutory stock options generally create compensation income at exercise based on the spread between the exercise price and the share value. Incentive stock options generally do not create regular taxable income at exercise, but the spread may create alternative minimum tax exposure, and the tax treatment at sale depends on applicable holding-period requirements.
Because exercise and sale can affect compensation income, capital gains, and alternative minimum tax exposure, tax planning with a qualified professional before acting can be especially important.
With RSUs in particular, the taxes withheld are often not enough to fully cover an executive’s actual marginal tax due on the shares received. Large vesting events can create less net cash than expected and still leave additional tax due at the time an executive’s tax returns are filed. Reviewing upcoming vesting dates, expected withholding and planned sales in advance can help reduce cash-flow surprises.
What is an 83(b) election, and who might use it?
A Section 83(b) election allows an employee to include the value of transferred restricted property in income before it vests. It generally must be filed with the IRS no later than 30 days after the property is transferred. That may be the grant date for an RSA or the exercise date when an employee early-exercises an eligible option and receives restricted shares.
For RSAs and restricted shares acquired through certain early-exercised stock options, it may be worth evaluating if the election has a relatively low value when transferred and may appreciate. If the shares appreciate and the vesting conditions are ultimately satisfied, the election may reduce the amount of future appreciation treated as compensation income and begin the capital-gains holding period earlier. The tax result depends on the award, holding period, and eventual sale.
The 83(b) election generally does not apply to standard RSUs because nothing is transferred at grant.
The election also creates risk. If the shares decline in value or are later forfeited, the employee may have paid tax on value that was never realized. It involves accepting an upfront tax cost and forfeiture risk in exchange for potentially more favorable treatment of future appreciation, so it should be evaluated with a qualified tax professional before any decision is made.
What happens when equity vests or you leave the company?
Equity awards may use time-based vesting, performance-based vesting, or a combination of the two. Until vesting is complete, unvested RSAs and RSUs are typically subject to forfeiture if the employee leaves the company.
Stock options must be exercised to acquire shares, and that right generally has a limited post-termination window, which varies by plan, sometimes as short as 90 days. Vested options not exercised within that window may expire with no value.
Even after shares vest, they may not be immediately sellable. Company trading policies, blackout periods, and lock-up arrangements can restrict when shares can be sold. Employees should review the terms of their grants and any applicable trading policies before making decisions around a job change, retirement, acquisition, or other transition.
Is it better to have RSUs or stock options?
Neither is universally better. The answer depends on your situation, the company’s stage and share price trajectory, and your own cash-flow needs, tax timing, and risk tolerance.
RSUs generally retain some value when the underlying shares have positive value at settlement, subject to the plan terms and any liquidity conditions.
Stock options may offer potential appreciation if the company’s share price rises significantly above the exercise price. The tradeoff is that options can expire worthless, require cash to exercise, and carry expiration risk that RSUs do not.
How should executives plan for concentration risk?
Your financial life can become significantly tied to a single organization when your salary, benefits, unvested awards, and existing shares all move with the company’s performance.
A useful starting point is to measure how much of your net worth, future compensation and near-term tax exposure is tied to one company.
Vesting and holding are different decisions. Shares received at vesting do not have to remain in the portfolio indefinitely. Whether to continue holding, and how quickly to diversify, depends on your tax situation, liquidity needs, retirement timeline, and the role employer stock already plays in your overall picture.
Executives subject to trading restrictions may consider whether a properly established Rule 10b5-1 plan fits their diversification strategy. These plans must follow securities-law requirements, company policies, and applicable cooling-off periods, so coordination with company compliance and legal professionals is important.
Diversifying a concentrated position involves tradeoffs between tax cost, timing, and the ongoing risk of remaining concentrated.
How equity compensation fits into a financial plan
Equity compensation rarely affects only one aspect of an executive’s financial life.
A vesting event can affect taxable income and cash flow. Employer-stock exposure can affect the investment portfolio, while the timing of sales or transfers may intersect with retirement, charitable giving, estate planning, and career decisions.
These decisions can be considered together within a longer-term financial plan rather than addressed one vesting event at a time.
Schedule a conversation with a Modera Wealth Manager
If you hold RSAs, RSUs, stock options, or a combination of equity awards, we can help you evaluate the tax implications, diversification opportunities, liquidity considerations, and broader planning issues associated with your compensation.
As a fee-only fiduciary advisor, Modera works with executives to help integrate equity compensation into a comprehensive financial strategy.
Schedule a conversation with a Modera financial advisor.
Frequently asked questions
What is the difference between restricted stock, RSUs, and stock options?
Equity compensation is the broader category. Restricted stock awards, restricted stock units, and stock options are distinct forms within it. A restricted stock award (RSA) grants actual shares at the time of the award, a restricted stock unit (RSU) is a promise to deliver shares after vesting, and a stock option gives the holder the right to buy shares at a fixed price at a future date.
What is the difference between an RSA and an RSU?
An RSA grants actual shares immediately, while an RSU grants no shares at the time of the award; it is a contractual promise to deliver shares once vesting conditions are met.
Are RSUs better than stock options?
Neither is universally better. RSUs generally retain some value when the underlying shares have positive value at settlement, subject to the plan terms and any liquidity conditions. Stock options can provide more upside leverage but can expire worthless, require cash to exercise, and depend on the share price exceeding the exercise price.
Can an 83(b) election be made for RSUs?
Generally, no. The 83(b) election applies to property transferred subject to a substantial risk of forfeiture. Standard RSUs do not involve a transfer of property at grant, so the election typically does not apply.
How are RSAs, RSUs, and stock options taxed?
RSAs are generally taxed as ordinary income as restrictions lapse unless a valid 83(b) election was timely filed after the property was transferred, which generally includes the property’s value in income at transfer instead. RSUs are generally treated as ordinary income at vesting or settlement. Stock option taxation depends on the option type and the timing of exercise and sale.
What happens to my equity compensation if I leave the company?
Unvested RSAs and RSUs are typically forfeited upon departure, while vested RSUs that have not yet settled may have specific terms. Stock options generally have a limited post-termination exercise window after which unexercised options may expire.
When can I sell shares received through equity compensation?
Shares generally can be sold once they are owned and transferable, subject to company policies, blackout periods, lock-up arrangements, and other plan or market restrictions. Vesting and settlement may occur at different times depending on the award.
How should I manage concentration risk from employer stock?
Assess how much of your total net worth, income, and unvested awards are tied to one company. From there, a plan to diversify over time can help balance concentration risk with potential tax consequences, trading restrictions, cash-flow needs, and long-term goals.
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