W-2 handles the income
Ordinary income at vest (or grant, if 83(b)) flows through your W-2. Payroll and income taxes withheld at that point.
Reporting essentials
Basis = W-2 income
Cost basis for the sale equals the amount already reported as compensation. Anything less means double tax.
Don’t trust the 1099-B
Brokerages routinely report understated basis for RSAs. Always confirm and adjust.
Why this matters
RSAs carry specific tax-reporting quirks
Restricted Stock Awards (RSAs) can be a valuable part of your compensation package, but they come with specific tax reporting requirements that must be handled carefully to avoid double taxation or IRS scrutiny. The way RSAs are reported on your tax return depends on whether or not you filed an 83(b) election, and it’s important to understand how income and capital gains are treated across multiple forms.
01Income reporting
Reporting income from RSAs
The first step is recognizing when the income is taxed.
Without 83(b)
Income at vest
The value of your RSAs is treated as ordinary income at the time they vest. Your employer includes this income on Form W-2. Subject to federal income tax, payroll taxes (Social Security and Medicare), and applicable state taxes.
With 83(b)
Income at grant
You elect to recognize the income at the grant date, rather than at vesting. The grant-date fair market value is reported on your W-2, even though the shares are not yet vested. No additional income is reported at vesting.
In both cases, once the RSAs are taxed as income (either at grant or vesting), this amount becomes your cost basis for capital gains purposes.
02At sale
Reporting the sale of RSA shares
When you sell the RSA shares — whether immediately after vesting or years later — you must report the transaction on Form 8949 and Schedule D of your tax return. These forms are used to report capital gains or losses from the sale of investment property.
It is essential to use the correct cost basis — which should reflect the amount previously included in income via your W-2. If the cost basis is understated (as is sometimes the case with brokerage 1099-B forms), you could be taxed again on income you’ve already paid tax on.
03Common mistakes
Three RSA reporting mistakes to avoid
Using an incorrect cost basis
Always confirm the brokerage’s reported cost basis and adjust it if necessary to reflect the amount already taxed as compensation.
Failing to report the 83(b) election
If you filed an 83(b), attach a copy with your return and retain records.
Omitting Form 8949
Even if there is no gain or loss, the sale must be reported properly.
Proper RSA reporting helps prevent double taxation and ensures compliance with IRS rules.
RSA cost basis review
If you have RSAs and are worried about how your basis reads on your 1099-B, send the numbers over. Call (212) 641-0673 or send the contact form.
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RSA reporting done right
One review keeps you from paying tax twice
If your 1099-B looks off on RSA basis, we will confirm the correct number and adjust the return before filing. Call (212) 641-0673 or send the contact form. No charge for the conversation.
Reviewed by George Dimov, CPA, New York, NY. Serving clients in all 50 states, 15+ years advising employees on equity compensation and stock-based tax planning. President of George Dimov, CPA, a New York City firm serving clients across the five boroughs and nationwide.