At tax time you have the option to summarize your transactions by sales Category.
If you summarize (recommended),
you only need to supply detail of 1099-B covered transactions with adjustments that are not listed on your e-Filed Form 8949. and all non-covered transactions not listed there.
in other words, for active investors, generally this is a list of the Wash Sales.
Note: turboTax may suppress some covered transactions without adjustments. For those, no mailing is required !
--
If you have two pages (for example) of Wash Sales,
use Adobe Reader to print those two pages. That's all you have to mail to the IRS, given that those wash sales are not on your e-Filed form 8949 already.
(you might enter them manually if they are few in number.)
If you are not a super-active trader, you may not have any wash sales.
