* Method 1- Thx, can I still e-file and then mail form 8453 with Box 8949 checked attaching hard copies of 8949 copy of my 1099B and my mutual fund & excel tracking of transactions? This is using sum of sales for both covered and non-covered.
* Method 2 - Sum of Sales for Covered, Line by Line for Non-Covered with adjusted cost basis. Based on your great feedback , I was able to enter the LT non-covered $0 cost basis section multiple lines in a line by line transaction in Turbo Tax and look up the approx trade date (over 10 years ago so no question on LT). Used $0 cost basis as shown on 1099B and then checked needs to be adjusted/incorrect cost basis and corrected for each one and then put in the correct adjustment. In this way, there was no requirement to send in form 8543 with 1099B and all data is outlined in 8949.
Method 2 seems more accurate and streamlined.
