Do I have to report what is on a 1099-B if it is already on a W-2? From same-day exercise of employee stock option.

[HelenaC · Accepted solution]

Yes, you do. The IRS will be matching the 1099-B form with your social security number (SSN). If the 1099-B form is not on your income tax return, you will get a letter from the IRS with the entire 1099-B amount treated as taxable income and additional income tax due.

Click on the appropriate link below for your tax situation:

• How do I adjust the cost basis for an NQSO sale that was also reported on my W-2? 
• What are restricted stock units (RSUs) and how do I report them?

Related Information:

• How do I add or edit a 1099-B?