RSU Tax Guides
RSU tax rules are confusing on purpose. These guides explain what actually happens at vest, on your paycheck, and on your return.
Rates and rules change. Content is reviewed for tax year 2026. Check the last-reviewed date and methodology on each page, then confirm against IRS or state guidance before you file.
Spot an outdated rate or date?
We update when we can, but we miss things. Send a link to the official source if you have one.
Email usRSUs are usually taxed as wages when they vest, not when the grant is signed. That single timing rule explains most W-2 surprises, withholding gaps, and 1099-B basis issues later.
These guides walk through vest day, sell-to-cover, and filing — in plain language with IRS and broker sources cited on each page.
What documents you need before using these guides
Educational checklist — gather these before running calculators or filing. Your plan administrator may use different labels.
- confirmation from your equity portal (date, shares, , )
- Pay stub from the pay period ( lines)
- for the year (Box 1 wages, state boxes if applicable)
- for any share sales (proceeds and reported basis)
- Broker supplemental stock plan statement or lot detail report
- Grant agreement and schedule (for timing and grant type)
- / exercise notice and Form 3921 if you exercised options
- State residency dates and move records if you relocated during the year
Common RSU tax mistakes
Treating withholding as your final tax
Employers often withhold at a flat supplemental rate on RSU vests. That rate is a payroll default, not a cap on what you owe for the year. Your marginal rate on stacked salary plus vest income may be higher.
Assuming sell-to-cover means taxes are fully paid
Sell-to-cover sells shares to fund withholding. It does not automatically match your full-year marginal tax. You can still owe at filing if rates were too low or state tax was under-withheld.
Double-counting or undercounting basis on 1099-B
Vest income belongs on your W-2. The sale still belongs on Form 8949. If the broker reports $0 basis, adjust to vest FMV — do not delete the sale or assume the W-2 alone covers it.
Forgetting state sourcing after a move
A mid-year relocation can split which state taxes vest income. Keep lease, domicile, and payroll records — not just your current mailing address.
If your vest is coming up
Read how RSUs are taxed, then run the RSU tax calculator with your expected vest value. Compare the estimate to typical supplemental withholding so you can set cash aside if needed.
- How RSUs are taxed
- Equity comp tax calendar
- Pay stub after RSU vest
- Pay stub line by line
- RSU vest during unpaid leave
- RSU offset on pay stub
- Aggregate withholding
- Withholding and net shares
- Vesting tax calculator guide
- RSU Tax Calculator
- Why withholding may be 22%
- RSU withholding at vest
- First RSU vest at new employer
- RSU effective tax rate
- RSU vest & Social Security wage cap
If you already vested and are filing
Start with the documents checklist, then read about double taxation myths and 1099-B basis. The fix is usually a basis adjustment, not deleting forms.
- RSU tax documents checklist
- Are RSUs taxed twice?
- Why 1099-B basis is $0
- RSU dividends after vest
- RSU refresh grant tax
- Two RSU vests same month
- RSU vest and bonus same paycheck
- RSU vests and tender offer same year
- RSU vests and ISO exercises same year
- RSU vests and NSO exercises same year
- Unvested RSU forfeiture
- RSU sold at a loss
Quick links
Sources and notes
Primary tax claims on this page are supported by the official and secondary sources below. Broker and software links describe reporting mechanics — confirm rules against IRS or state guidance.
Federal wage treatment at vest and separate capital-gain treatment on later sale.
- IRS — U.S. taxation of stock-based compensation (RSU vesting and W-2 reporting)
Internal Revenue Service · Official
Describes RSU income at vest, W-2 reporting in boxes 1/3/5, and ordinary income treatment.
- IRS Publication 525 — Taxable and Nontaxable Income
Internal Revenue Service · Official
Covers compensation income from stock-based pay, including restricted property under section 83.
- Equity Compensation — RSU taxation at vest and on sale
Charles Schwab (Workplace Financial Services) · Brokerage explainer
Plain-language explainer: RSU value at vest on W-2, FICA, withholding may not cover full tax, separate capital gains on sale.
Confirm any tax outcome with your documents and a qualified tax professional. See our editorial standards for how we source and update pages.
All rsu tax guides
How RSUs Are Taxed
RSUs are usually taxed as wages when they vest, not when the grant is signed. This guide walks through the timeline in plain terms.
Are RSUs Taxed Twice?
Vest income and later sales can both show up on tax forms — that is not always double tax on the same dollars.
Why Was My RSU Withholding Only 22%?
Employers commonly use flat supplemental rates on RSU vests. Your actual tax can be higher if you are in a higher bracket.
Why Do I Owe Taxes After Sell-to-Cover?
Your employer may sell fewer shares than your total tax, or use rates that do not match your bracket.
Should I Sell RSUs Immediately After Vesting?
Selling right after vest is a personal finance choice — tax at vest usually already happened; the sale may mostly affect capital gain or loss.
RSU Vesting vs Selling: Tax Difference
Think of vesting as the wage-income event and selling as a separate transaction with its own reporting.
RSU Ordinary Income vs Capital Gains
Most RSU tax at vest is ordinary income on your W-2; only price changes after vest may create capital gain or loss.
What Happens When RSUs Vest?
On vest day your employer typically reports wage income, withholds tax, and may sell shares — here is what to expect.
RSU Tax Checklist Before a Vesting Date
A short checklist so vest day is not a surprise — confirm withholding settings and whether you need extra cash on hand.
RSU Tax Checklist After a Vesting Date
Once shares vest, save your statements and confirm wage reporting matches what you expected before filing season.
RSU Tax Mistakes That Cause Surprise Bills
Most surprise RSU tax bills trace back to a few predictable gaps between withholding and actual liability.
RSU Tax Planning for High Earners
Large vests can push you into higher brackets — planning ahead beats scrambling when the vest hits payroll.
RSUs and Estimated Tax Payments
If withholding on a vest falls short, estimated payments may be part of staying on track before April.
RSUs and Safe Harbor Rules
Safe harbor is about paying enough during the year. RSU spikes make it worth understanding before you skip payments.
RSUs and Marginal Tax Rates
RSU vest income stacks on salary — your marginal rate on that vest slice may be higher than flat withholding.
RSUs and FICA Taxes
RSU vest income is usually wages for payroll tax purposes — you may see FICA on your vest pay stub.
RSUs and Medicare / Additional Medicare Tax
Large RSU vests can push wages over thresholds where additional Medicare tax may apply.
RSUs and Net Investment Income Tax
NIIT generally applies to net investment income, not RSU wages at vest — but later sales and dividends can matter.
Equity Compensation Tax Calendar
A planning calendar for equity compensation tax events — vest, exercise, sell, move, and file — with documents to gather at each step.
RSU Withholding vs Actual Tax
Why flat supplemental withholding on RSU vests often differs from your actual tax when salary, bonus, and vests stack in one year.
W-4 After RSU Vest
Updating Form W-4 to increase paycheck withholding is often simpler than quarterly estimated tax when RSU vest withholding fell short of your marginal rate.
RSU and Bonus in the Same Year
Multiple supplemental wage events in one year can push you into higher marginal brackets — flat withholding on each event may still leave a year-end gap.
RSU Vest Between Jobs
RSU vest wages stay on the granting employer's W-2 — two partial-year jobs often under-withhold relative to your combined marginal rate.
RSU Dividends After Vest
Dividends on shares you own after vest are investment income on 1099-DIV — not a second tax on the same vest FMV already on your W-2.
RSU Cliff Vest Tax
Cliff vests use the same wage-at-vest rules as any RSU delivery — the shock is size, not tax law. Model FMV and withholding before cliff day.
RSU Wash Sale Rules
Wash sales can defer capital losses when you sell at a loss and acquire the same stock within 30 days — including from a scheduled RSU vest.
RSU Refresh Grant Tax
Refresh RSUs tax like any RSU at vest FMV — the surprise is overlapping vest streams from multiple grants in one year.
Donating RSU Shares to Charity
After vest, RSU shares can be donated like other stock — Pub 526 rules on holding period and deduction limits apply.
Unvested RSU Forfeiture Tax
Forfeited unvested RSUs generally produce no taxable income because shares never delivered — vest wages apply only to shares you actually received.
RSU Capital Loss Below Vest Price
Vest tax and sale loss are separate events — capital loss rules apply to the sale below vest basis, not to reversing W-2 wages.
Long-Term Capital Gains on RSU Sales
Long-term treatment on RSU sales generally requires more than one year from vest delivery — grant date does not start the clock for standard RSUs.
Final RSU Vest When Leaving a Company
A vest while still employed on the vest date is usually wage income on your final W-2 — unvested tranches after exit typically cancel without tax.
Performance RSU (PSU) Vest Tax
Performance RSUs tax when shares deliver after certification — failed cycles with no delivery usually create no wage income.
Reading Your Pay Stub After an RSU Vest
Vest FMV adds to gross wages on the same pay stub as salary — supplemental withholding and FICA lines spike, but net pay alone does not prove your full-year tax is covered.
December RSU Vest: Which W-2 Year?
RSU vest wages follow the calendar year your employer reports on Form W-2 — December vest dates and January payroll runs can disagree until payroll or a W-2c corrects the year.
RSU Aggregate Withholding Explained
Aggregate withholding combines vest and salary wages on one pay period — federal withholding may follow W-4 tables instead of the flat supplemental rate.
RSU Vests and ESPP in the Same Tax Year
RSU vest FMV and ESPP wage components stack into the same W-2 and marginal bracket — keep separate records for each plan.
RSU Tax Filing Extension Guide
A filing extension buys time to reconcile RSU wages and sales — it does not delay payment of tax you already owe from vest withholding gaps.
Year-End Payroll True-Up and RSU Withholding
Year-end true-up lines adjust cumulative withholding — they are not a separate tax and may not fully close RSU supplemental withholding gaps.
RSU Offset Line on Pay Stub Explained
RSU offset lines are usually payroll reconciliation entries — compare gross vest wages and withholding to your vest confirmation, not the label alone.
RSU Withholding and Net Shares Explained
Net shares are gross vest shares minus shares sold or withheld for tax — full vest FMV is still wage income on your W-2.
RSU Tax Spreadsheet vs Calculator
Spreadsheets work for rough single-vest notes — calculators with current tax-year tables handle FICA wage base and withholding gap math more reliably.
Stock Vesting Tax Calculator Guide
Vesting schedule calculators show dates — tax calculators estimate wage tax on vest FMV. Use both with pay stub validation after vest.
RSU Effective Tax Rate Explained
There is no flat RSU tax rate — effective tax on vest FMV includes federal, FICA, and state components that change with your total income.
RSU Withholding at Vest Explained
RSU withholding at vest is payroll tax on vest FMV — often supplemental federal rates plus FICA and state — not necessarily your final marginal tax.
Two RSU Vests in the Same Month
Each vest adds full FMV to wages — two same-month vests stack withholding and bracket impact faster than flat supplemental rates may cover.
RSU Vest and Bonus on the Same Paycheck
Bonus and vest FMV both add to gross wages on one check — aggregate withholding may apply but full-year marginal tax still matters.
RSU Vest During Unpaid Leave
Unpaid leave pauses salary, not RSU wage tax at delivery — vest FMV still hits W-2 Box 1 when shares vest under plan rules.
RSU Vests and Tender Offer Same Year
RSU vests are wages on W-2; tender sales are capital gain on 1099-B — both stack into the same year's income and bracket.
First RSU Vest at a New Employer
First vest at a new job uses same wage rules — but new payroll W-4 and cliff size can surprise on the pay stub.
RSU Vests and ISO Exercises Same Year
RSU vests are W-2 wages; ISO exercise may trigger AMT via Form 6251 — both stack into the same year's tax planning.
RSU Vests and NSO Exercises Same Year
RSU vest and NSO spread both stack into W-2 Box 1 — flat supplemental withholding on each event may still leave a year-end gap.
RSU Vest and Social Security Wage Base
RSU vest FMV is Social Security wages — late-year vests after a high salary often incur Medicare only, not an employer error.
RSU Pay Stub Line by Line
Each pay stub line on an RSU vest check maps to wage reporting — compare gross vest FMV, withholding, and FICA to your confirmation before calling payroll.