RSUs Explained for Beginners: How Restricted Stock Units Are Taxed and When to Sell in 2026
Restricted stock units can make up a substantial part of an employee’s compensation, but they also create tax bills, investment risk, and paperwork that may not be obvious from a pay stub. The key is to separate two events: RSUs generally create wage income when they vest, followed by a capital gain or loss when the resulting shares are sold.
This guide explains how RSUs work, how they are generally taxed for U.S. employees in 2026, and how to decide whether to sell or hold the shares. It is educational information, not personalized tax, investment, or legal advice.
What Are RSUs?
A restricted stock unit, or RSU, is a company’s promise to deliver shares—or sometimes an equivalent cash payment—after specified vesting conditions are satisfied. Before vesting, an RSU is generally not the same as an issued share. You normally cannot sell it, and you may forfeit it if you leave the company before meeting the plan’s requirements.
Important RSU dates and terms
- Grant date: The date the company awards the RSUs. A grant establishes the number of units and vesting terms, but it usually does not create taxable income by itself.
- Vesting date: The date the conditions are satisfied and the units generally convert into shares or cash. For most public-company RSUs, this is when ordinary wage income is recognized.
- Cliff vesting: Nothing vests during an initial period, followed by a larger block vesting at once. A common example is a one-year cliff.
- Graded vesting: Units vest in installments, such as monthly, quarterly, or annually.
Suppose an employee receives 400 RSUs that vest evenly over four years. If the employee remains eligible, 100 shares may vest each year. Another plan might vest 25% after the first year and then vest the remaining units monthly or quarterly.
Unlike many employee stock options, RSUs usually have no exercise price. The employee does not have to pay a strike price to acquire the shares. Taxes and transaction costs may still reduce the number of shares ultimately deposited into the brokerage account.
The main risks of RSUs
- Stock-price volatility: The grant’s estimated value can rise or fall before vesting, and vested shares can lose value afterward.
- Forfeiture risk: Unvested units may be canceled when employment ends, although the outcome depends on the plan and the reason for departure.
- Concentration risk: Holding employer stock ties both employment income and investment wealth to one company.
- Liquidity restrictions: Blackout periods, lockups, or a lack of a public market can prevent an immediate sale.
How RSUs Are Taxed at Vesting in 2026
For a typical public-company RSU, the fair market value of the shares at vesting is generally treated as ordinary compensation income. It is not initially taxed as a capital gain.
For example, assume 100 RSUs vest when the company’s stock is worth $80 per share:
- 100 vested shares × $80 fair market value = $8,000 of wage income
The full $8,000 is generally taxable compensation even if the employer withholds some shares for taxes and deposits fewer than 100 shares into the employee’s account.
RSU compensation may be subject to:
- Federal income tax withholding
- State and local income tax, where applicable
- Social Security tax, until the employee reaches the annual wage base
- Medicare tax
- Additional Medicare Tax rules for higher wage income
The taxable value generally appears as wages on Form W-2 for the year of vesting. The employer may also show RSU information in another section of the W-2 or on an equity-compensation statement, but reporting practices vary.
Keep the three relevant dates separate:
- The grant date establishes the award.
- The vesting date generally creates wage income and starts the shares’ holding period.
- The sale date creates a capital gain or loss based on the price change after vesting.
Private-company and “double-trigger” RSUs can follow more complicated settlement and taxation timelines. Employees with those awards should review the plan documents rather than assuming the public-company framework applies.
Sell-to-Cover, Withholding, and the 2026 Tax Bill
Under a sell-to-cover arrangement, the employer or plan administrator sells enough newly vested shares to fund required payroll-tax withholding. A related method called net share withholding has the company retain shares instead of selling them in the market. In either case, the employee receives fewer shares, but the full value of the vested award generally remains taxable compensation.
Federal withholding on separately identified supplemental wages is commonly calculated at 22%. Employers may instead use an aggregate withholding method in some situations. If an employee receives more than $1 million of supplemental wages from an employer during the calendar year, the portion above $1 million is generally subject to the higher mandatory federal withholding rate of 37%.
Withholding is only a prepayment. It is not necessarily the employee’s final tax rate. Someone whose marginal federal rate is higher than 22% could owe additional tax even after shares were sold or withheld. State taxes, local taxes, Additional Medicare Tax, other income, and large late-year vests can widen the gap.
Action steps after each vest
- Download the vesting confirmation and transaction statement.
- Record the number of shares vested and the fair market value used for payroll.
- Separate federal, state, Social Security, and Medicare withholding.
- Compare total year-to-date withholding with the projected tax on all household income.
- Consider whether additional payroll withholding or estimated tax payments may be needed.
What Happens When You Sell RSU Shares?
After vesting, RSU shares generally behave like ordinary stock. The difference between the sale price and the shares’ adjusted cost basis creates a capital gain or loss.
The cost basis is generally the fair market value already included in wages at vesting, adjusted for transaction costs or other relevant items. If shares vested at $80 and were later sold for $95, the capital gain would generally be $15 per share:
- $95 sale price − $80 cost basis = $15 capital gain per share
If the employee sold at $65 instead, the result would generally be a $15-per-share capital loss. Capital losses can offset capital gains. If losses exceed gains, federal rules generally allow a limited deduction against other income, with unused amounts carried forward, subject to applicable tax rules.
Short-term versus long-term gains
- Short-term: Shares held for one year or less are generally taxed at ordinary federal income-tax rates when sold at a gain.
- Long-term: Shares held for more than one year generally qualify for long-term capital-gains rates.
The holding period normally begins when the shares vest and are delivered, not on the original grant date. High-income taxpayers may also owe the 3.8% net investment income tax on applicable investment income.
When Should You Sell RSUs?
There is no universally correct sale date. The decision should balance diversification, liquidity, taxes, and the employee’s overall financial plan.
Option 1: Sell immediately after vesting
An immediate sale reduces exposure to the employer’s stock and usually produces little capital gain or loss because the sale price remains close to the vesting price. This can simplify recordkeeping and convert compensation into cash that can be used for diversified investments, debt repayment, or planned expenses.
A useful test is: “If I received this amount in cash today, would I use all of it to buy my employer’s shares?” If the answer is no, keeping every vested share may not fit the employee’s actual investment preferences.
Option 2: Sell part and retain part
A partial sale can reduce concentration while preserving some exposure to the company. For example, an employee could sell enough to bring employer stock below a written portfolio limit and retain the remainder.
This approach requires deliberate tax-lot selection. Different vesting lots may have different bases, holding periods, and unrealized gains or losses.
Option 3: Hold the full position
Holding may produce a larger gain if the stock appreciates, and a holding period of more than one year can qualify gains for long-term treatment. However, the tax benefit applies only to appreciation after vesting. The entire vesting-date value has already been treated as wages.
Waiting for long-term treatment exposes the full position to market risk. A potential reduction in the tax rate on a future gain should not override an unsuitable investment allocation or excessive concentration.
Questions to consider
- Do you have adequate emergency savings?
- Are you carrying high-interest debt?
- Will you need cash for a home, tuition, or another near-term expense?
- What percentage of your investments and future compensation depends on the same company?
- How would a 30% or 50% decline affect your financial plan?
- Would holding create a meaningful long-term capital-gains benefit?
- Do you have a well-supported investment thesis, or are you holding through inertia?
Employees may also face trading windows, blackout periods, post-IPO lockups, or insider-trading restrictions. Eligible insiders sometimes use Rule 10b5-1 trading plans to schedule transactions under predetermined instructions. These plans have detailed legal and cooling-off requirements and should be coordinated with the company’s legal or compliance team.
Common RSU Tax Mistakes and How to Avoid Them
Mistake 1: Treating all sale proceeds as new taxable income
The value taxed at vesting is wage income. Only the subsequent change in value is normally a capital gain or loss. Treating the entire sale proceeds as a gain can overstate taxable income.
Mistake 2: Assuming sell-to-cover settles the final bill
Payroll withholding may be lower or higher than the employee’s final liability. Compare withholding with projected federal and state taxes instead of assuming the brokerage transaction settled everything.
Mistake 3: Failing to verify the reported cost basis
Form 1099-B may show a missing, incomplete, or unadjusted basis for employer shares. If a return uses a zero basis even though the vesting value was included on Form W-2, the same economic value can appear to be taxed once as wages and again as a capital gain.
Before filing, reconcile the equity statements with:
- Form W-2
- Form 1099-B
- Form 8949
- Schedule D
Form 8949 can be used to report applicable basis adjustments. Keep grant agreements, vesting confirmations, trade confirmations, and year-end brokerage statements to support the numbers.
Additional complications can arise when an employee worked in multiple states during the vesting period, holds private-company shares, participates in a tender offer, receives a large December vest, or moves between grant and vesting. These situations may require professional analysis of sourcing, liquidity, and estimated-payment rules.
Complete RSU Tax Example
Assume 100 RSUs vest at $80 per share. The employer reports $8,000 of wage income. For illustration, assume 30 shares are withheld or sold at approximately $80 each to provide $2,400 toward combined payroll-tax withholding. The employee receives the remaining 70 shares.
| Event | Calculation | General tax treatment |
|---|---|---|
| 100 shares vest | 100 × $80 = $8,000 | $8,000 of wage income |
| 30 shares fund withholding | 30 × $80 = $2,400 | Tax prepayment, not a reduction of wage income |
| 70 shares are deposited | 70 × $80 = $5,600 basis | Employee now owns ordinary shares |
| 70 shares are later sold at $95 | 70 × $95 = $6,650 proceeds | Sale reported under capital-gains rules |
| Post-vesting gain | $6,650 − $5,600 = $1,050 | Short- or long-term capital gain based on holding period |
The employee does not report $6,650 as an additional wage payment. The original $8,000 is compensation income, while the later $1,050 increase on the retained shares is a separate capital gain. Any small price movement on shares sold to cover taxes may also create a small reportable gain or loss.
What to Do Next
- Create a vesting calendar. Record grant dates, vesting dates, expected share counts, estimated prices, and anticipated withholding.
- Set an employer-stock limit. Choose a written target allocation based on the rest of your portfolio and your dependence on the company for income.
- Review every vest. Save the vesting statement and confirm the fair market value, shares withheld, and taxes credited through payroll.
- Project the tax gap. Compare withholding with expected federal, state, and local obligations after each major vest.
- Select tax lots deliberately. Before selling, identify the lots, cost bases, and holding periods instead of relying automatically on the brokerage’s default method.
- Reconcile tax forms. Confirm that Form W-2 compensation and Form 1099-B basis information are consistent before completing Form 8949 and Schedule D.
The central principle is simple: RSUs are generally compensation at vesting and an investment afterward. A disciplined plan for withholding, diversification, and recordkeeping can prevent an equity award from becoming an unexpected tax or portfolio problem. Consider consulting a qualified tax professional when grants are large, shares are not publicly traded, multiple states are involved, or brokerage basis information is incomplete.