What type of entity was created? What is the fiscal year for the entity?
A corporate federal income tax return is generally due by the 15th of the third month after the year end.
You are required to file a return even if you did not have any taxable income.
Since, it sounds like you are a Single Member LLC and your business was formed on November 6, 2006, you would file a Schedule C attached to your Federal 1040. On this schedule C, you would show business activity for the period between November 6 - December 31st. Although, you could have had start-up and organizational expenses which would have occured prior to the November 6th LLC formation date. You are able to expense the first $5,000 of start-up and organization expenses. However, in your case it looks like you missed the deadline to elect to expense the first $5,000. In that case, any start-up or organizational expenses you incurred will have to be amortized/expensed over a period of not less than 15 years. You must have had some expenses related to the formation of this new venture. Correct?
Additionally, if you are not required to file a Federal 1040 tax return according to the IRS rules and regulations regarding "Who Must File a Return" , then there is nothing you need to do. If you had formed a corporation or partnership, there would be Federal and State tax filings for these business entities regardless of whether or not you had any sales.
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