You have a loss when your naked otm or atm goes itm and no government's, in my opinion, are going to tax any of our lost money in option trading. That at least is the case in the market I trade.
Edit after reading rajsingh's post :
Brokerage and exchange fees are some thing I am used to, but I am surprised that any government, and in this case the Indian government, is putting taxes on such trades. I have seen the following article and one point really toke my attention
http://www.caclubindia.com/experts/stt-for-options-exercised-by-exchange-310805.asp
So, thanks Rajsingh, I learned again some thing new about the Indian Market. A hidden small detail, recognized only from the trader which trades directly in that market and not seen from foreigners, like me, who do not trade directly in that market.