The error message means the holding period and basis are unknown to the broker. You have to determine the date acquired and the basis from your own records. Then you report the sale as either short-term or long-term, depending on how long you owed the asset. If you owned it for one year or less, it is short-term. If you owned it more than a year, it is long-term.
Help with finding cost basis
Help with holding period
@luciusira - Yes, if you are unable to locate the basis, you can use $0 basis (this will generate max tax).
**Say "Thanks" by clicking the thumb icon in a post
**Mark the post that answers your question by clicking on "Mark as Best Answer"
