To report the transfer of stock through an ESPP as noted on Form 3922:
If you haven't sold the stock: don't report this on your tax return. No taxable event has occurred.
If you have sold the stock: A taxable event has occurred. You will typically receive Form 1099-B from your brokerage firm, which reports the sale. If the cost basis in box 1e is incorrect, you can use Form 3922 to adjust it.
Here's how to enter your 1099-B in TurboTax and adjust the cost basis using Form 3922:
Follow the onscreen instructions to import or enter your 1099-B.
When prompted, enter the information from Form 1099-B as it appears.
Use the information from Form 3922 to adjust the cost basis:
Identify the correct cost basis: The cost basis isn't simply the discounted price you paid for the stock. It should include the amount reported as ordinary income on your W-2.
Adjust the cost basis: If the cost basis reported on Form 1099-B is incorrect, use the information from Form 3922 to calculate the correct cost basis. This ensures you report the correct gain or loss on your tax return