John Steele Gordon shares with Wall Street Journal readers a list of reasons for the United States to scrap its tax on corporate income.

In 1909 President William Howard Taft, a Republican, called for a constitutional amendment to establish a personal income tax and, meanwhile, persuaded Congress to pass a tax on corporate profits as part of the Payne-Aldrich Tariff Act. Technically an excise tax on the privilege of doing business as a corporation, there was no constitutional impediment to the tax. And since nearly all corporate stock was owned by the rich at that time, it was a way of taxing them indirectly but effectively.

Had the corporate income tax, meant as a temporary measure, been repealed when the 16th Amendment was ratified in 1913 and a personal income tax established, the country would have been spared a great deal of political and economic grief. But it was not, and the interaction of the two taxes has been the main engine driving the ever more complex income-tax system, as lawyers and accountants found ways to play one tax off the other. For instance, when personal income-tax rates soared to 75% during World War I, thousands of wealthy Americans simply incorporated their holdings to pay the far lower corporate tax rate.

What positive effects would abolishing the corporate income tax have? Many. Here’s my Top 10:

First, that engine of tax complexity disappears. And with it disappears an army of lobbyists in Washington working to get favorable tax treatment for corporations.

Second, corporate managers are currently most concerned with after-tax corporate profits, because that is what the stock market cares about. But after-tax profits are largely an artifact of lobbying success in Washington. With no corporate income tax, management would concentrate on what is now pretax profits, an artifact of actual wealth creation.

Third, there would be no reason to tax dividends at lower rates to compensate for the fact that they now are paid out of after-tax profits. They would be taxed at the full rate, removing a perennial tool of leftist demagoguery.

Fourth, with suddenly increased profits, corporations would increase both dividends and investment in plant and equipment, with very positive effects for the economy as a whole and increased revenue to the government through the personal income tax.

Fifth, stock prices, which are a function of perceived future earnings, would rise substantially, inducing a wealth effect as people see their 401(k)s and mutual funds rising in value. That would lead to increased spending and thus increased tax revenues.

Follow the “readers” link above to find the second half of Gordon’s list.