I had bought some stock that is now not listed. I have 7 million shares.. penny stocks but I put in around 3K total. How do you claim a loss on a stock that is now unlisted or 0?
Thanks

Just because it is no longer listed does NOT mean that the shares are worthless.

You need to determine if the stock has any value, and you can do that through your stock broker.

If the stock IS worthless, you will need a letter from the broker stating that fact, and will show the sales date as of 31 December 2008 when you claim the loss on Schedule D.