Note; only sell transactions go on Form 8949.
your exchange report may be a jumble of various activities, which would have to be separated out.
If TurboTax won't accept your CSV file, proceed as follows.
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.
Use the summary option and then you can mail in the printout of the CSV files.
See the TurboTax instructions that will pop up.
You would use Category C and/or F since you don't have a 1099-B.
At tax time, you will subtotal your SELL transactions by Sales Category.
IRS requires Box C/F details to be listed on your own Form 8949,
or on your other forms (e.g. spreadsheets) which have the same information and in the same manner as Form 8949.
Either way, if you choose to summarize (not itemize) and e-File, you have to mail the transaction details to the IRS within three business days of IRS accepting your e-Filed tax return.
If you put the printout in PDF format, TurboTax Online may ask you for it.
Then you would avoid mailing.
: you're supposed to use Form 8453 as a cover sheet.
Form 8453 is not to be signed.
Note: more crypto outfits are sending 1099-B so if you get that your Sales Category would be different.
