Key Takeaways
- Restricted stock units (RSUs) are a form of equity compensation that generally gives employees the right to receive company shares — or, in some plans, a cash equivalent — after specified vesting conditions are met.
- Unlike stock options, RSUs generally don’t require employees to pay an exercise price to receive value after vesting.
- RSUs can help employers attract and retain employees by tying part of compensation to continued service, company performance or other award conditions.
- When RSUs are settled, the fair market value of shares delivered is generally treated as ordinary compensation income and may be subject to applicable payroll withholding. Later changes in value may result in a capital gain or loss when the shares are sold.
- Planning before a vesting date can help employees understand potential cash flow, tax withholding and concentration risk considerations.
A restricted stock unit is generally an employer’s promise to deliver a set number of company shares — or, depending on the plan, cash equal to their value — once an employee meets the conditions in the award agreement. These conditions may include remaining employed for a stated period, meeting performance goals or reaching a company milestone.
Vesting is only the first step. Once an award is settled, the value delivered is generally treated as ordinary compensation income even if the employee keeps the shares, so a single award can carry both tax and portfolio implications.
What Is a Restricted Stock Unit?
A restricted stock unit is a contractual promise by an employer to deliver a specified number of shares, or sometimes a cash equivalent, once the requirements in the award agreement are met.
Awards commonly vest over time, though they may also depend on performance targets, a liquidity event or a combination of conditions. A vesting schedule describes when an employee becomes entitled to the award. If the applicable conditions aren’t met — for example, if employment ends before an unvested tranche vests — the unvested units are generally forfeited.
Once an award is settled, each unit often results in one share, subject to the plan’s terms. This differs from a stock option, which gives an employee the right to buy shares at a predetermined exercise price rather than the right to receive them.
Key dates in an RSU award
A typical award involves several dates and events:
- Grant date – The date when an employer awards a stated number of units.
- Vesting period – The period during which an employee works toward the award’s service, performance or other requirements.
- Vesting date – The date a portion of the award becomes nonforfeitable when the applicable conditions are met.
- Settlement or delivery date – The date the employer delivers shares or, if applicable, a cash equivalent. This may occur at vesting or later.
- Sale date – This is the date when delivered shares are sold. Any change in value after settlement generally determines capital gain or loss.
Example: An employee receives 400 RSUs that vest in four equal annual installments. If 100 units vest in a given year and the shares are delivered when the stock is worth $50 per share, that tranche is generally $5,000 of compensation income before considering withholding and other tax factors.
How RSUs differ from restricted stock awards (RSAs)
Restricted stock awards, also called restricted stock, involve the transfer of actual company shares subject to forfeiture or transfer restrictions. The recipient may become a shareholder at grant and may have shareholder rights, such as voting rights, subject to the terms of the award.
RSUs, by contrast, are generally a promise to deliver shares or cash in the future. Before settlement, holders generally aren’t shareholders and typically don’t have voting rights.
Another important difference is the Section 83(b) election. An 83(b) election may be available when actual restricted property, such as restricted shares, is transferred subject to vesting. It’s generally not available for RSUs, because an RSU represents a promise to deliver property in the future rather than a current transfer of property. An 83(b) election has a strict filing deadline and can have significant tax consequences, so employees should consult a qualified tax professional before taking action.
Why Employers Grant RSUs
Equity compensation serves both sides of the employment relationship, and understanding an employer’s rationale can help clarify how an award is structured.
For employees, a defining feature of an RSU is that it generally requires no purchase. Because there’s typically no exercise price to pay, an award can carry value whenever the underlying shares have value. A stock option works differently: it generally has value only when the share price exceeds the exercise price, and an option may have no immediate value if the share price falls below that level.
For employers, tying part of compensation to continued service, performance conditions or company milestones can support recruiting and retention. An award that vests over several years may encourage an employee to remain through the full vesting period. Because each unit generally corresponds to a share rather than a right to buy one at a set price, employers may also be able to deliver a comparable level of compensation using fewer units, subject to the plan’s design.
RSUs also carry considerations that employees should weigh, including the tax treatment at settlement and the concentration risk that can develop when a meaningful share of compensation and investments depends on the same company.
How Are RSUs Taxed?
For employees, tax treatment is often the most important part of an award, and timing drives much of it. The outcome can depend on the award agreement, the timing and form of settlement, employment location and individual circumstances.
When vested units are settled in shares, the fair market value of the shares delivered is generally included in compensation income. This amount is typically reported on Form W-2 and may be subject to federal, state, local, Social Security and Medicare withholding, as applicable.
If the employee continues to hold the delivered shares, later price changes are generally treated separately from the compensation income recognized at settlement. A sale above the employee’s tax basis may create a capital gain, while a sale below the basis may create a capital loss. Whether the result is short-term or long-term generally depends on the holding period after delivery.
Withholding may not equal total tax liability
Many employers use sell-to-cover withholding, meaning they sell or withhold a portion of vested shares to help cover payroll tax obligations. The method and amount vary by employer and plan.
Federal withholding on supplemental wages may be lower than an employee’s ultimate federal income tax rate. For example, IRS guidance for 2026 includes a flat 22% supplemental withholding rate in certain circumstances, with a 37% mandatory rate applying to supplemental wages above the applicable threshold.
Before a significant vesting event, employees may need to review expected annual income, current withholding, estimated tax requirements, state tax exposure and available cash. A tax professional can help evaluate the facts of an individual situation.
State, multistate and international considerations
Equity compensation can create more complex tax issues for employees who work in more than one state during the vesting period, move before shares are delivered or work under a cross-border employment arrangement. Tax sourcing rules, withholding rules, treaty provisions and employer reporting practices can vary substantially.
Employees with multistate or international circumstances should seek tax advice tailored to their work history, residency and award terms.
Considerations After RSUs Vest and Settle
Once RSUs are settled and shares are delivered, a separate set of decisions begins. The right choice depends on an employee’s financial goals, cash needs, tax situation, trading restrictions and overall investment strategy.
Employer-stock concentration risk
Holding a significant amount of employer stock can increase concentration risk. An employee’s income, unvested compensation and investment portfolio may all depend on the same company’s performance. If the company faces financial difficulty, both employment income and the value of those shares could be affected.
Selling some shares after settlement and investing the proceeds in a diversified portfolio may help reduce single-company exposure. However, there’s no universal allocation threshold that’s right for every investor. A financial professional can help evaluate employer stock exposure in the context of an individual’s full financial picture, including approaches to managing a concentrated company stock position.
Trading windows and blackout periods
Employees may not always be able to sell delivered shares whenever they choose. Company trading windows, blackout periods, pre-clearance policies and insider trading restrictions may limit when transactions can occur.
These limitations can affect an employee’s ability to sell, reduce concentration risk or create liquidity for tax payments. Employees should understand their employer’s trading policy and shouldn’t trade on material nonpublic information.
Cost basis and tax reporting
RSU income is generally included in compensation income when shares are delivered. When these shares are later sold, the taxpayer’s cost basis should generally reflect the amount already recognized as compensation income.
Review Form W-2, Form 1099-B, the employer’s stock plan records and brokerage statements carefully. If the reporting doesn’t appear to reflect compensation income already reported, consult a qualified tax professional before filing.
Planning Considerations for RSU Holders
Because withholding, trading rules and portfolio exposure can converge around a vesting or settlement event, employees often benefit from planning well before either date.
Estimate upcoming vesting events
Review the vesting schedule, expected number of units, current share price, settlement method and expected dates. Doing so can help estimate the potential income and tax impact of upcoming events. Because a company’s share price can change before settlement, estimates may need to be updated regularly. Employees in industries where equity makes up a large share of total compensation, such as technology, may find this especially relevant — see our overview of financial planning for tech professionals.
Review withholding and cash flow
Confirm whether the employer uses sell-to-cover, net settlement, cash withholding or another method. Then compare expected withholding with anticipated total tax obligations.
Depending on the circumstances, an employee may need to adjust paycheck withholding, make estimated tax payments or reserve cash for a future payment.
Evaluate employer stock within the broader portfolio
A settlement event or delivery of shares is an opportunity to assess how employer stock fits within the broader investment strategy. Consider diversification, current cash needs, future goals, existing exposure and any restrictions on selling.
This isn’t simply a question of whether the stock may rise or fall. It’s also a risk management decision involving the relationship between an employee’s career, compensation and investments.
Consider charitable planning carefully
In some situations, individuals who hold appreciated company shares after settlement may consider donating eligible shares to qualified charities or using a donor-advised fund. Potential tax benefits and limitations depend on factors including the holding period, the type of asset, the recipient organization, transfer restrictions, deduction limits and the donor’s tax situation.
Employees should coordinate charitable giving decisions with a tax professional and financial advisor before transferring shares.
ISO exercise can create an alternative minimum tax adjustment, and ISO disposition rules are complex. A qualifying disposition generally requires holding the shares more than two years after the option grant date and more than one year after exercise.
Frequently Asked Questions About RSUs
What is a restricted stock unit?
A restricted stock unit is an employer’s promise to deliver a specified number of company shares — or sometimes a cash equivalent — after the employee meets the conditions in the award agreement. These conditions often include continued employment through a vesting date, although performance or company event conditions may also apply.
How do RSUs work, and when do they vest?
RSUs are granted with a vesting schedule or other conditions. When the employee meets those conditions, the units become vested. The employer then settles the award under the plan’s terms, often by delivering shares. Unvested units are generally forfeited if the conditions aren’t met.
How are RSUs taxed when they vest?
When RSUs are settled, the fair market value of the shares delivered is generally treated as compensation income. This income is typically included on Form W-2 and may be subject to applicable withholding. The precise timing and treatment depend on the award agreement and applicable tax rules.
Should I sell RSU shares after they vest?
There’s no universal answer. Relevant considerations can include your employer stock exposure, financial goals, cash needs, tax position, trading restrictions and confidence that your portfolio remains appropriately diversified. A financial professional can help you evaluate the decision in the context of your full financial plan.
Can I make an 83(b) election for RSUs?
Generally, no. An 83(b) election is generally associated with a transfer of restricted property, such as restricted stock, while RSUs typically represent a future promise to deliver shares or cash after vesting.
