any corporations that actually bother to pay tax in the first place will simply pass the taxes on to their customers by hiking up the prices, it won't effect them in the slightest.
/not particularly, they only pay tax on profits, not on income, if a corporation does 20 billion worth of business and make 7% profit, they are only paying tax on 1.4 billion. The corporate tax rate was 33.33% anyway, so their tax bill would jump from 466 million 1050 billion, a difference of 584 million.
Their after tax profits will drop from 936 million to 350 million, to return their net profit to 936 million they would need to make a gross profit of 3.74 billion, so they need to either increase their total revenue by 2.34 billion, around 12%, reduce their costs, or some combination of the 2.
Spread over two or three years it's quite possible to reduce operating costs while increasing pricing only marginally above inflation and achieve the same result.
The bottom line is as i said in the first place, the cost will be passed on to the consumer, but they won't really notice because they will be too busy slapping themselves on the back and going "ha ha, you have to pay 75% tax" while thumbing their noses at the corporations.