Reporting RSU sold to cover tax on Fidelity

Forum|Forum|11 months ago
April 6, 2025
1 reply
0 views

I received a consolidated 1099 form from Fidelity after some of my RSUs were sold automatically on vesting date to cover taxes in 2024.

The 1099-B box 1d shows a proceed of $1000 and box 1e shows a basis of $0. However, Fidelity also provided a supplemental information form that shows an adjusted cost or other basis (z) as $999.96.

Which value should I use for the cost basis of this transaction on my 1040?

NicolleR1

You will enter "0" on "Total cost or other basis (sum of all Box 1e)" as shown on your form. You will then click on the box below "I need to adjust my total cost basis" and enter the amount shown on your supplemental form and choose "B" for reason of adjustment. See the image below for reference.

yatoshuraAuthor

@NicolleR1

I'm using the Windows version of TurboTax Deluxe and I don't see the options you shared in the screenshot. It only has a box for "1e Cost and other basis". Should I just ignored the $0 from my 1099-B box 1e and just directly enter the adjusted basis from the supplemental form there?

ThomasM125

You may need to indicate that you have employee stock when you enter the investment sale section of TurboTax to see the option to say you need to adjust your cost basis. It's on the screen that says Tell us about the sales on your (name of broker) 1099-B: