1099 B

Question

Do you have to mail in 1099 B with your tax return? If so, how would you send it when filing electronically?

TaxMorgan · Accepted Answer

Hello CHAS,

When you file your tax return electronically, you generally do not need to mail your 1099-B to the IRS. The information from your 1099-B is entered into your return and transmitted electronically when you e-file. In some situations, such as where the basis has not been reported to the IRS, you will need to attach a summary statement to your return in the software so that the IRS can verify the information entered on the return. The software will inform you if this is the case.