If you successfully e-filed your tax return(s), you should review IRS About Form 8453, U.S. Individual Income Tax Transmittal for an IRS e-file Return.
Per Form 8453, U.S. Individual Income Tax Transmittal for an IRS e-file Return,
The last box says, "Form 8949, Sales and Other Dispositions of Capital Assets (or a statement with the same information), if you elect not to
report your transactions electronically on Form 8949."
Thus, you could complete, print and mail Form 8453 and a copy of Form 1099-B. See "When and Where To File" on Form 8453 Page 2.
If you compared Form 8949 to Form 1099-B, they both would report the following for each sale listed:
- A Description
- Date Acquired
- Date Sold
- Sales Price
- Cost Basis
- Gain or loss for each sale
- A sale category based on how the sale was reported to you and the IRS
In some uncommon cases, there will be an adjustment code and adjustment amount.
