@NMR01
At tax time, you will summarize your transactions by Sales Category.
As an active investor, be aware that your category Box A or Box D sales without adjustments do not require Form 8949, so there is no reason to import or key in those transactions.
Instead use the "enter a summary" option to put your numbers on Schedule D Line 1a or Line 8a.
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If you have wash sales, it gets more complicated since those adjusted transactions have to be itemized on Form 8949 and the summary totals adjusted accordingly.
Enter the wash sales on Form 8949, then use the subtotal results on the bottom of that form (Line 2) to know how much to subtract which gives you the Schedule D line 1a totals. Be sure to NOT check the adjustments box in the summary window.
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Alternatively, if entry of Wash Sales is too tedious,
summarize and check the box for adjustments and enter the disallowed amount.
This summary will go on Schedule D Line 1b.
You will be making the mail-in election.
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IRS requires details of your SELL transactions to be supplied on a Form 8949,
or on your other forms (e.g. consolidated 1099-B) which have the same information and in the same manner as Form 8949.
Either way, if you choose to summarize, you have to mail the transaction details to the IRS within three business days of IRS accepting your e-Filed tax return.
Reporting Exception: if you summarize Category A or Category D, Form 8949 is not needed for transactions without adjustments. No mailing is necessary.
