Restricted stock units tax rules can surprise even experienced professionals. RSUs are a common form of equity compensation, especially at larger and public companies. They can become a meaningful part of your pay. But because the tax happens at vesting, not when you sell, many people end up with an unexpected bill in April or confusion about what they actually owe.
If you have ever asked "How are RSUs taxed?", "Why do I owe more when my company already withheld?", or "Should I sell my shares when they vest?", this guide is for you. We will walk through each stage of the RSU timeline in plain language.
What Are Restricted Stock Units?
Restricted stock units are a promise from your employer to give you company shares in the future, once certain conditions are met.
Key Terms
Grant date: The date your company awards the RSUs. Generally, no tax is due at grant.
Vesting schedule: The timeline over which RSUs become yours, often over several years.
Vest date: The date shares are delivered to you. This is usually when tax applies.
Fair market value: The stock's value on the vest date, which determines the taxable amount.
Single Trigger vs. Double Trigger
Single trigger: RSUs vest based on time, common at public companies.
Double trigger: RSUs at many private companies vest only after a time requirement and a second event, such as an IPO or acquisition.
How Are RSUs Taxed at Vesting?
When RSUs vest, the value of the shares is generally treated as ordinary income, just like salary.
What That Means
Taxable amount: Number of shares vesting multiplied by the share price on the vest date.
Income taxes: Federal and state income taxes generally apply. In California, RSU income is generally subject to state income tax as well.
Payroll taxes: Social Security and Medicare taxes generally apply.
Shows up on your W-2: RSU income is generally included with your wages.
No 83(b) Election
Unlike some restricted stock awards, RSUs generally do not allow an 83(b) election to be taxed at grant. Tax rules are detailed and can change, so check current IRS guidance.
RSU Tax Withholding: Why It May Not Be Enough
Many people assume their employer's withholding covers the full tax bill. Often, it does not.
How Withholding Typically Works
Sell to cover or share withholding: Your company may hold back or sell some shares to cover taxes.
Flat supplemental rate: Employers commonly withhold federal tax on RSU income at a flat supplemental rate, which may be lower than your actual tax bracket.
Why a Gap Can Appear
Higher earners: If your marginal tax rate is above the withholding rate, you may owe more at tax time.
Large vests: A big vesting year can push you into a higher bracket.
State taxes: State withholding may also fall short.
Planning Ahead
Estimate your total income: Include expected vests in your annual tax projection.
Adjust withholding or make estimated payments: This may help avoid surprises and potential penalties.
Set aside cash: Some people keep a reserve for the tax difference.
What Happens When You Sell RSU Shares?
After vesting, the shares are yours. Any change in value from that point is treated as a capital gain or loss when you sell.
Your Cost Basis
Basis equals value at vest: Because you already paid ordinary income tax on the vest value, that amount generally becomes your cost basis.
Check your 1099-B: Brokerage tax forms sometimes show an incomplete basis for RSU shares. Reporting it incorrectly could lead to paying tax twice on the same income.
Short-Term vs. Long-Term Gains
Sold within one year of vesting: Gains are generally short term, taxed as ordinary income.
Held more than one year after vesting: Gains are generally long term, typically taxed at lower rates.
Sold at a loss: Losses may offset other gains. Learn more in our article on tax loss harvesting.
Should You Sell RSUs When They Vest?
There is no universal answer, but one question can help: If your employer paid you this amount in cash, would you use it to buy company stock?
Reasons Some People Sell at Vest
Little additional tax: Selling right away usually results in minimal additional gain or loss.
Diversification: Reduces dependence on one company that also provides your paycheck.
Funding goals: Cash can go toward a home, savings, or other priorities.
Reasons Some People Hold
Long-term confidence: Some people want to keep a stake in their company.
Company requirements: Executives may face ownership guidelines or trading windows.
Over time, RSUs can create a concentrated position. See our article on embedded capital gains for how unrealized gains can make future changes harder.
RSUs and Your Bigger Financial Plan
RSUs connect to many parts of your finances.
Cash flow: Treat vests as part of your income plan, not a bonus to spend automatically.
Retirement savings: Higher income years may be a time to review retirement contributions.
Charitable giving: Appreciated shares may be donated, subject to IRS rules.
Estate planning: Large equity holdings may call for updated documents and beneficiary reviews.
How Auric Capital Partners Works With Executives
Auric Capital Partners is located in Aliso Viejo, California. The firm describes its approach as bringing "clarity, structure, partnership" and "disciplined thinking and genuine connection to every part of your financial life."
Auric serves executives and professionals with equity compensation, along with business owners, families experiencing major life transitions, and retirees. Services include tax minimization strategies, financial planning, investment advisory services, estate planning, multigenerational planning, and retirement income planning. View our Services page.
As the firm puts it, Auric works with "founders, professionals, and families who have built something meaningful. People who do not need another pitch, but a real partner." Learn more about us.
Get Started
If you have RSUs vesting and want to understand the tax impact, we are here to help. No scripts, no pressure. Schedule a conversation with Auric Capital Partners, and we will respond with thoughtful, personalized support.
Frequently Asked Questions
How are RSUs taxed?
RSUs are generally taxed as ordinary income when they vest, based on the share value on the vest date. Later gains or losses when you sell are generally treated as capital gains or losses.
Why do I owe taxes on RSUs if my employer withheld?
Employers commonly withhold at a flat supplemental rate that may be lower than your actual tax bracket, which can leave a balance due at tax time.
Are RSUs taxed twice?
They should not be, but it can happen by mistake if your cost basis is reported incorrectly when you sell. Your basis is generally the value at vesting.
Should I sell my RSUs immediately?
Some people sell at vest to diversify and limit additional tax, while others hold for long-term reasons. It depends on your goals, risk, and company rules.
Do RSUs count as income on my W-2?
Generally yes. The value of vested RSUs is usually included in your W-2 wages.
When do RSUs become long-term capital gains?
Generally, if you hold the shares more than one year after the vest date, any additional gain when you sell may qualify for long-term capital gains treatment.
This content is for educational and informational purposes only and should not be considered investment, tax, or legal advice. It is not a recommendation to buy or sell any security or to adopt any particular investment strategy. Investing involves risk, including the possible loss of principal. Past performance is no guarantee of future results, and no strategy can guarantee a profit or protect against loss. Please consult with a qualified professional about your individual situation. Registered Representative of Sanctuary Securities Inc. and Investment Advisor Representative of Sanctuary Advisors, LLC. Securities offered through Sanctuary Securities, Inc., Member FINRA, SIPC. Advisory services offered through Sanctuary Advisors, LLC., a SEC Registered Investment Adviser. Auric Capital Partners is a DBA of Sanctuary Securities, Inc. and Sanctuary Advisors, LLC.
