Loss not reported on 1099-B from Brokerage Firm

[investing24]

How do you record a capital loss from a stock investment that became worthless in 2020 due to the finalizing of a bankruptcy proceeding.   Since this was not a sale, the loss is not reported on the 1099-B I received from my Brokerage firm.  

I am concerned if I enter the loss into schedule D the totals will not agree back to the 1099-B.

Thank you for your help!

[ThomasM125 · Accepted solution]

You can report the loss like any other investment sale, accept you indicate that you don't have a form 1099-B. The sale amount will be $0, and the cost will be what you paid for it. It is not uncommon to have investment sales without a form 1099-B listed on a tax return, so it shouldn't attract too much attention from the IRS.