Do or die for massive Illinois tax hike
http://money.cnn.com/2011/01/11/news/economy/illinois_income_tax/index.htm
http://money.cnn.com/2011/01/11/news/economy/illinois_income_tax/index.htm
Illinois taxes a corporation based on the percentage of sales made to Illinois customers. They no longer include Illinois payroll or property when calculating the percentage of income to be taxed by the state. As such, it would do no good for a company to move its corporate HQ to Wisconsin unless they want to abandon their Illinois customer base, which is unlikely. And, yes, I am a CPA who is heavily involved in corporate taxation.