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Rolled over husband's 401(k) to IRA after his death. Can I deduct a loss since?
I trust the 401(k) was a traditional, pre tax account. There was no tax paid, and any withdrawals would be taxable. The account could go to zero, and there's no write off, sorry. I have to ask - were there any withdrawals along the way? What was it invested in that lost 90% of its value?  Edit - I'm sorry the OP came and went. It would be great to have closure on some of these issues. Here, I'm thinking as Duff said, malpractice, or perhaps a 401(k) that was 100% in company stock. Seems we'll never know.