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Vesting tax vs sale tax
For many RSU holders these are two separate events — not double tax on the same dollars.
| Topic | At vest | At sale |
|---|---|---|
| Income type | Ordinary wage income (typical RSU treatment) | Capital gain or loss on price change since vest |
| Taxed on | Full fair market value at vest | Proceeds minus cost basis (often vest FMV) |
| Forms | W-2 from employer | 1099-B from broker |
| Withholding | Employer may withhold or sell-to-cover | No automatic withholding on brokerage sale |
| Common confusion | Feels like the main tax bill | $0 basis on 1099-B can overstate gain |
If you sell immediately at vest price, capital gain may be small — fees aside — because basis ≈ sale price.
Why this happens
The IRS treats compensation and investment sales differently. value is compensation when you receive the shares.
Once you own the shares, they are like stock you bought at the price. A later sale is a disposition of that stock.
Gain or loss on sale = sale proceeds minus (generally ). If you sell immediately at price, gain may be near zero aside from fees.
If you hold and the price rises, later gain may be short- or long-term depending on holding period after .
What to check
- Date of vs date of sale, holding period starts after for timing.
- used as basis, save the confirmation.
- Whether you sold all shares or kept some, each lot may have its own sale later.
- reporting when you eventually sell, basis may need manual adjustment.
- Blackout or trading windows, sale timing may be later than even if you wanted to sell immediately.
Common mistake
Example scenario (hypothetical)
Illustration only, not your tax situation.
When to get help from a tax pro
- You held shares more than a year after and want to understand long-term vs short-term treatment.
- You sold at a loss below price and wonder how that interacts with prior wage income.
- You have multiple lots sold in one trade, lot matching and basis can get messy.
- You are planning charitable donations of appreciated shares.
Related calculators
Related pages
- 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.
- 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.
- RSUs on 1099-B: What to Look For
1099-B for RSUs often shows low or zero basis. that does not mean your true basis is zero.
Sources and notes
Ordinary income at vest/delivery vs capital gain or loss on sale.
- Restricted Stock Units and Awards — Tax at delivery and on sale
Charles Schwab (Equity Award Center) · Brokerage explainer
Describes two tax events (delivery/vest and sale), W-2 reporting, and capital gain/loss on sale.
- IRS Publication 525 — Taxable and Nontaxable Income
Internal Revenue Service · Official
Covers compensation income from stock-based pay, including restricted property under section 83.
For learning, not filing
Grants, employers, and states all differ. Use your own documents and a qualified tax professional before you make decisions from this guide.