Reporting wash sale from 1099-B

[yatoshura]

When I report a summary of my transactions from my 1099-B, do I have to adjust the basis with "W" and put in the wash sale disallowed amount from box 1g in as the new adjusted basis? It seems to make a big different in taxes owe since my total transactions has a net loss. Adding the "W" and setting the wash sale total as the new basis significantly increase my taxes owe. Is this expected?

[Bsch4477]

Don’t include the wash sale in the summary. Enter it by itself with a code W. 

[yatoshura]

I have several hundred transactions. My Fidelity 1099-B shows a summary of all the transactions along with their proceeds, basis, wash sale, etc. Should I single out all the individual transactions with wash sale separately from the rest of the summary? Does it make a difference?

When I input the summary, it also let me check the "W" box and put in an adjusted cost basis. Is this not the wash sale amount in box 1g?

[CatinaT1]

Here's a help article: How do I fix multiple “Needs Review” transactions?