How to mail in your transactions details
At tax time, you can subtotal your SELL transactions by Sales Category.
Note: only SELL transaction are reported.
IRS requires Box C/F details (crypto) to be listed on your own Form 8949, (as you mentioned, but you do not AMEND)
or on your other forms (e.g. spreadsheets) which have the same information and in the same manner as Form 8949.
Adjust your csv files so the columns are in the same order as on Form 8949.
Put a header with your name tax year and SS Number.
Either way, mail the transaction details to the specified IRS address.
The details are to be postmarked within three business days after you are ACCEPTED.
@zenmster
