In my opinion, the correct corporate tax rate is 0%.

To any business, a tax is just another expense that must be passed on to consumers. So, when poor people buy the essentials for life, they are unwittingly paying corporate taxes. This makes no sense.

Class warfare and the soak-the-rich mentality has done a lot of damage to this country. Too often (in fact, almost always), we see a static analysis of how much a tax on corporations or the wealthy will add to the coffers. Remember the 1990 Luxury Tax? That was a teachable moment...for those willing to learn. The plan was to add a new tax on expensive cars, boats, private aircraft, jewelry, etc. and watch the money roll in. Instead, luxury goods buyers simply stopped buying -- and tens of thousands of hourly workers lost their jobs. 

Oops.

Those who expect shareholders to eat corporate taxes don't get it, either. All businesses entail risk and all investors require a certain amount of return for taking that risk. Ask investors to take less and they'll walk. Static analysis doesn't understand arbitrage.

Finally, saddling our corporations with taxes puts them at a disadvantage in a global market. Far better to tax shareholders and let businesses flourish.