I sold 20 contracts of XYZ call option spreads at a total loss of $25,000 in a taxable account. The next day I bought 10 shares of XYZ in my HSA (oops - I hadn't realized that this counts as a wash sale). Is the $25,000 loss writeoff gone forever? Many sites say that the loss is "added to the cost basis" of the new shares. Since the HSA is not taxable, is this "increase" in cost basis then worthless?
On the one hand, this post suggests instant death: "If I sell 100 shares of XYZ for a $1000 loss in my brokerage account, and buy 100 shares of XYZ in my HSA account, I triggered a wash sale by my actions in my HSA account, and additionally I have permanently disallowed the $1000 loss." This also seems to agree with Revenue Ruling 2008-05.
On the other hand, this post says "Wash sale accounting doesn't change the amount of the gains or losses, just possibly when you can claim them." Of course, this situation would be much preferable. But which one is correct?
If the loss writeoff is gone forever... 20 contracts controls 2,000 shares. Will I lose all 2,000 shares worth of writeoff, or only 10 shares worth? This site says that the writeoff is only disallowed on the repurchased shares. Can I interpret this to mean that I can still write off 19.9 contracts worth of losses? (In which case my mistake was merely the loss of a $125 writeoff?)
If the loss writeoff is not gone forever... can I get it back any time soon (before its value is eroded by inflation)? Can I "undo" the mistake by selling the HSA shares right away?