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Level 2
posted Apr 6, 2025 1:10:34 PM

How do I enter adjusted cost basis and adjustment amount (ordinary income) on 1099-B?

How do I enter adjusted cost basis on my 1099-B? I see posts in these TurboTax forums, but TurboTax Home and Business for Desktop doesn't match the steps after marking "The cost basis is incorrect or missing on my 1099-B" in step 6. https://ttlc.intuit.com/community/taxes/discussion/enter-cost-basis-when-blank-on-1099-b/00/3227302

 

Instead of giving me a place to enter adjusted cost basis and adjustment amount (ordinary income), I get the following steps:

 

1. "Next, we'll help you figure out your cost basis" with a "Continue" button to move forward

2. "Tell us about your RSU sale" which asks for an existing W2 on this return and number of shares sold, with a "Continue" button to move forward

3. "Here's your purchase info for the RSU shares you sold" with either "Done" or the ability to "Add another purchase"

4. If I add another purchase, it asks for total shares vested/released, shares withheld, date vested, market price investing date, price I you paid per share, and purchase commission or fees paid.

 

The fourth page asks for nothing related to adjusted cost basis or adjusted amount. And while it's somewhat related, I don't have this information on my Etrade "Stock Plan Transaction Supplement" tax document.

 

Am I looking in the wrong place?

 

 

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2 Replies
Expert Alumni
Apr 8, 2025 1:26:52 PM

In TurboTax Home and Business Desktop, on the next screen after you indicated that your cost basis was missing or incorrect, you should see a screen that says Enter your cost basis to ensure your best outcome, on which you can enter the correct cost basis if you know it:

 

 

The option you mention would only appear if you checked the box that says I can't find it and need help.

Level 2
Apr 12, 2025 10:03:52 AM

This worked, thanks!