Thank you for your answer. Your are correct for your assumption.
However, on my 1099-B, there is a blank for the "purchase date" (because there are multiple purchase dates). So if enter "various" for Purchase Date in the K-1 interview, the 1099-B won't provide the actual purchase dates. That's why I figured I could enter the first purchase date (the date when I first purchased shares of this MLP).
In the 2020 Transactions Schedule attached to my K-1 though, there is a table with the Buy and Sell dates for each unit of this MLP and I believe this is transmitted to the IRS so they would know what are the "various" purchase dates. Am I thinking right?
