Long story short, five years ago I opened (and became administrator of) a corporation for a friend (he was in bankruptcy). I recently "reacquired control", only to discover no GST was ever paid, no income taxes paid, nothing filed, etc even though the company had revenues of 400-500k a year. Most of the money went to my "friend", either as checks written out by him to himself (he was a signing officer), ATM cash withdrawals or online banking payments/transfer. After crunching some rough numbers, best case scenario I owe (at least) 100k in GST/PST. I've begun talks with Revenu Quebec (this is in Montreal, Quebec) regarding monies owed.
Would I be able to deduct any GST/PST payments as a loss of some kind from my income? (I have a regular 40-hour week job.)