Ian Bryzek, CPA
What if inherited stock has missing basis records?
Missing basis calls for custodian archives, transfer histories, and a written search log—not a placeholder guess on a sale return.
Date-of-death value support and later adjustments should be pursued as separate evidence tracks.
Document what cannot be recovered.
What to keep with the file
Document what cannot be recovered.
What to do next
Open a missing-basis reconstruction log before reporting a sale of the shares.
What to gather
- Custodian archive requests
- Death-date statements
- Transfer history between brokers
- Search log including negative responses
- Sale confirms if already sold
Who usually handles what
- Ian can organize the tax reporting question and the supporting records.
- The executor, trustee, or account custodian supplies records and confirms who has authority to act.
A practical next step
Open a missing-basis reconstruction log before reporting a sale of the shares.
Related guides
This is general tax information, not tax or legal advice. Outcomes depend on the documents, ownership, timing, and law that apply to the particular facts.