Which of the following best describes the corporate tax rate (state plus federal) in the United States in 2017? The U.S.corporate tax rate was basically irrelevant, because it does not affect a company's ability to compete globally. The U.S. corporate tax rate was the highest in the world. Sure it was high, but companies love to pay taxes because they know the money will be spent wisely by congress. The U.S.corporate tax rate was the lowest in the world. The U.S. corporate tax rate was the second highest in the world, behind Japan's. What is a corporate inversion? When a private company becomes a public corporation. When a corporation buys back all of its stock to go private. When bonds are exchanged for common stock When a corporation changes from a corporation to a partnership When a US company moves its headquarters to a different country to take advantage of the lower corporate tax rate