My 1099-B shows proceeds from a 2024 stock sale under the category "Undetermined Term Transactions for Noncovered Tax Lots". On my 1099-B, the date acquired is listed as Various, and the Cost or other basis is listed as zero. As required by the program, I have manually entered each individual acquisition of the shares identified under this category; in my case the shares were all restricted stock awards (or purchases made with vesting stock options that I subsequently exercised). For each acquisition, my purchase price was entered as zero (since most of these were stock awards to me from my company as bonuses, there was no cost to me, though I was confused about whether zero was correct for a few in which I had vesting stock options, rather than actual stock). In any event, after accounting for all of the shares, the summary information for this entry shows the proper cost basis and proceeds, but lists the gain as short term when these were all actually shares held for more than 1 year and so should be classified as long long term gains.
