Originally Posted by skynerd

Partly in support of the preceeding, here is some advice from the IRS that I think indicates that you do not have to fill out form 8949 if you're not challenging any information that was already submitted by your broker with form 1099-B, from http://www.irs.gov/publications/p17/...link1000265824 (columns f and g mentioned in the quotation are for the tax payer to make adjustment's to the broker's 1099-B):