My husband and I started a new small business in May 2011 with a business structure of sole proprietorship. In Dec 2011 we incorporated business as an S corporation. I know that even though we incorporated late (December 28) 2011 we still have to file a 1120S by March 15th or file an extension. My question is for the business activity that took place from the time we opened the company in May 2011 thru Dec 27th 2011, is this activity reported under our personal individual tax return since we were a sole proprietorship for those 7 months?