on your 1099-B if you have anything in...
col 1f for AMD = Accrued Market Discount; an adjustment for market discount bonds to move the discount paid out on redemption from capital gain on Schedule D to ordinary income on Schedule B - a lot of people are getting this from discounted Treasury Notes they bought on the secondary market)
col 1g for wash sale adjustments
or anything in the 1099-B in a section referred to as "NONCOVERED TRANSACTIONS-Cost basis not reported to IRS - Form 8949, Part I, (B)" or similar - this is for securities purchased before the legislation requiring brokers to track cost basis back in 2011-13, or other scenarios where the cost basis is 0 (e.g. short options that expire) or not available for some reason.
I am not a CPA but I suspect that just sending IRS the pages for any transactions that fall into these buckets will be sufficient as that is what would be on your 8949 if you input those items as "one by one" and the rest as sales summary, I doubt they need the whole 1099. Worst case they ask for it later but I suspect you'll never hear about it again - I am skeptical that this is even looked at below a certain threshold and all this mailing of 1099Bs is generally a waste of time for everyone involved. TT doesn't provide good guidance on how to file this stuff electronically when inputting a 1099 manually, and seems to encourage a lot of paper mailing to the IRS that could be avoided.
