I'm finalizing my taxes and noticed that on the Form 8949 under "Description of Property" column, it says "See attached statement". I don't have a statement to attach. When putting in the information that goes on this form, I opted for the "summary" data because the information provided by Coinbase did not include specific purchase/sale dates but used "various". What, exactly, am I supposed to attach here, how do I attach it if I'm e-filing, and what happens if it's not attached?
