@prakashbk
See this FAQ on how to enter
https://ttlc.intuit.com/community/entering-importing/help/how-do-i-enter-a-large-number-of-stock-tra...
Yes, you need to mail in supporting information for each sale. I copy of the 1099-B should suffice. TT should tell you that and printout the form and address to include. See this prior discussion for more details
https://ttlc.intuit.com/community/taxes/discussion/what-exactly-do-i-need-to-mail-in-with-my-8949-fo...
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