As Critter indicated, you should seek professional help here.
Some items that will be discussed are as follows:
- What year was the C corporation formed? Did you apply for and receive an EIN?
- Why did you choose the C corporation as the entity type? There are many pros and cons of each entity type and you need to understand which entity type meets your needs.
- Do you want and / or do you need to be operating as a C corporation?
- How have you been paying yourself?
- Have any of your customers filed 1099's for business transactions? To whom were the payments made? You personally or the C corporation?
- How have you represented your business to the public and your customers?
No need to respond to each of the above questions. I just wanted to give you some idea of things that will need to be discussed with a professional and you can go in having given some of these questions some thought.