Having a "consolidated" 1099 or not isn't really relevant here. The focus of Form 8949 is reporting security sales and that's the subject of Form 1099-B. Whether it's a "stand alone" 1099-B or just some pages included in a consolidated 1099 you still might have the option of not filling out a security-by-security listing of trades but, instead, simply reporting "summary" numbers - proceeds, cost basis, gain/loss - and mailing in the 1099-B to the IRS with the detail.
Take a good look at Schedule D
https://www.irs.gov/pub/irs-pdf/f1040sd.pdf
particularly line 1a and 8a. The instructions for these two lines read exactly the same, except 1a deals with short term holdings and 8a deals with long term holdings:
"Totals for all (short-term/long term) transactions reported on Form 1099-B for which basis was reported to the IRS and for which you have no adjustments (see instructions). However, if you choose to report all these transactions on Form 8949, leave this line blank and go to line (1b/8b)."
The 1099-B portion of your consolidated 1099 will be organized into sections which correspond to the "Box A", Box B", "Box C", "Box D", "Box E" and "Box F" sections listed on Schedule D. If you look at Form 8949 you can see that it has that same nomenclature, and actual boxes to check so that the IRS knows what "sales category" the trades being reported item-by-item fall into. (So, if you do list out your trades and have lots of trades in lots of sales categories you can end up sending in many, many copies of Form 8949 with your income tax return.)
So all the trades listed on your Form 1099-B that are Box A or Box D trades, assuming you are not making any adjustments to those trades, can be entered in a summary fashion and you don't need to list out the detail or even mail in your 1099-B for those trades.
To tell TurboTax that's what you're doing then after telling TurboTax you have a 1099-B and identifying the broker you'll come to a page titled "Tell us about your [Broker Name] 1099-B" with options for entering sales one at a time or entering them in summary fashion. If you select "summary fashion" then you simply enter total proceeds and total cost basis per the 1099-B and identify the sales as Box A or Box D. That's all there is to it.
Tom Young
