Received letter from irs, need schedule D with support. What is considered support? Actual bank statements?

[SweetieJean]

Do you have the 1099-B forms?

[pk]

What did you sell that was being reported on schedule-D ?  stocks/bonds or real-estate or what?  Did you sell directly or through an agent ?

[SweetieJean]

I suspect the IRS also wants proof of the basis (purchase price).

[SweetieJean]

You have to upgrade to TT Premier to generate Schedule D.

[fanfare]

Supporting forms are Form 8949 and any other forms pertaining to a non-zero line amount on Schedule D

[SweetieJean]

It appears that the IRS is requesting a Schedule D as well. Since OP is asking from TT Deluxe, one may never have been created.  We need more info from OP

[fanfare]

@wadizd  was the box "Schedule D not required" checked on your 1040?
Others have noted that IRS would ignore that checkmark.
If so, attach 1099-DIV showing capital gains.