1099B

Stock that was held in an employee sharing plan was sold last year. It was at a loss. Just received the 1099B today. Had already filed taxes using the 1099R that was sent for the same transaction that reported the tax that was paid on this. One place says this information furnished to the IRS, another place says these values are not provided to the IRS. What do I need to do.

184

Employee Tax Expert

Feb 24, 2026 10:53:09 AM

Since you have already filed, you will need to file an amended return using Form 1040X. However, since yours shows a loss, it likely means you may receive a larger refund on your tax return.

That means that, rather than filing right away (which would be advisable if you owed), you should wait so as not to cause any delays in processing by the IRS.

Once your first return has been processed, proceed with submitting the amended return.

Note that Form 1040X is not yet available (estimated availability date of March 4th).

Here are the steps to file an amendment within TurboTax:

Open the tax year you need to change
Start the Federal Amendment first. Navigate to Wages & Income, Investment Income, Stocks, Cryptocurrency, Mutual Funds, Other
Enter the Form 1099-B information. TurboTax will compare this to what you did previously and generate the Form 1040-X automatically.
Review the State Section. After finishing Federal, go to the State tab to ensure the State amendment is triggered.

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1099B