DianeW777
Expert Alumni

Get your taxes done using TurboTax

It depends. If the cost basis is the same on both the Schedule D and your  Form 1099-B, then nothing needs to be mailed including Form 8453.

 

If they are not the same:

Print only the 8949, make a copy of your Form 1099-B, and send both with Form 8453, if the cost basis does not match the total that is reported on your Form 1099-B.  

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