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system
can i apply prior years' capital losses against my employee stock option exercise?
user
as i recall, the gain for isos is considered ordinary income, and capital losses can only negate up to $3000 of this each year.  if you exercised and held the stock, you have ordinary income to the exercise price, and cap gain above that, if you hold the stock for two years.  edit - as noted below, this answer works for usians who found this question, but not for the op who is canadian, or at least asked a question at it relates to canada's tax code.
assistant