Last year I applied for and got a tax Id to sell and charge tax in texas as a buisness. I never opened the buisness up and charged nothing. The paper the state sent me just sat in a folder at home. I get a letter from the comprollers office stating I owed taxes based on a ESTIMATED 1,000, sales,excise and something else. It stated since I did not file they estimate that charge per the letter. Is this normal or does this not sound right. Was I suppose to file state taxes or something(texas has none obviously)? If yes, in which way because im only use to filing federal. Any help is appreciated. Thanks guys