To change the cost basis when inputting your Form 1099-B information, check the W and not the G, by doing the following:
Click on Wages & Income
Select Add more income
Scroll down to I...
See more...
To change the cost basis when inputting your Form 1099-B information, check the W and not the G, by doing the following:
Click on Wages & Income
Select Add more income
Scroll down to Investments and Savings and click down arrow
Select Stock, Crypto...(1099-B...)
Select Add investments, Add a different way
Select Stock, Bonds, Mutual Funds (1099-B)
Enter brokerage information, then Continue
In the "Tell us about the sales..." section, answer those questions, then Continue
In the "Now choose how to enter your sales", Continue
Here, you will reach the box below the sales section, I need to adjust my total cost basis, which is a box directly below the "Total cost or other basis..." box
Instead of G, look for W and check the box