Investors & landlords

When you enter your form 1099-B information in TurboTax, you will see this screen:

If you click on the "I'll enter additional info on my own" box, you can enter the correct cost basis of your share sales, which should include the income reported on your W-2 form, then an adjustment will show on form 8949 to increase the basis reported on your form 1099-B, and avoid the double counting of your income you are experiencing now.