You also get a deduction in America for taking a night school course, growing sugarcane, moving to a new city for a job, replanting a forest, insulating the attic, destroying old farm equipment, employing Native Americans, commuting to work by bicycle - but only if the bike is regularly used for a substantial portion of travel - or buying a plug-in hybrid sports car, or buying a recreational vehicle. I mean there are hundreds of them, and most of them are nuts.

The U.S. has the most complicated and difficult tax system in the world; we've made it hard to file and pay taxes.

The income tax only taxed the Rockefellers, the Morgans and the Vanderbilts. It was aimed at the top 4 percent, and the top rate then in 1913, was 7 percent. Woodrow Wilson had a big ceremony and said, "I'm delighted to be president at the creation of this popular new tax."

President Trump repeatedly says that "America is the highest-taxed country in the world." This is an alternative fact. We pay less in taxes, and our government spends less, as a share of our total wealth, than our counterparts in Western Europe and East Asia. But Trump is right when it comes to corporate tax rates; the U.S. corporate income tax right is among the highest in the world.

If you ask any economist, they'll tell you all the mortgage interest deduction does is raise the price of the house. So a couple is out looking at the house, they say, "Oh, we love this house, but we couldn't make the monthly payment." And the realtor says, "Yeah, but you're going to get a tax break." So people pay more than they would otherwise. You take a loss even though you're making a gain.

If your employer pays your health insurance, that's not counted as income to you. And any economist would say that's your income, because they'd pay a higher wage if they didn't take it. That's a huge loss to the Treasury.

We have the most expensive compliance system in the world. The IRS brags that they spend 35 cents for every $100 they collect. They're very efficient collectors. And the reason is they stick the real cost on you and me.