Cutting taxes for 95% of Americans

Senator Obama has been promising us that he's going to cut taxes for 95% of Americans. As the Wall Street Journal points out today, that's a pretty cool trick since more than a third of Americans pay no income taxes. So what he is really talking about is not a tax cut, but a handout to people who are not paying taxes. Nowadays, this is called a "tax credit" instead of a handout.

Here's the political catch. All but the clean car credit would be "refundable," which is Washington-speak for the fact that you can receive these checks even if you have no income-tax liability. In other words, they are an income transfer -- a federal check -- from taxpayers to nontaxpayers. Once upon a time we called this "welfare," or in George McGovern's 1972 campaign a "Demogrant." Mr. Obama's genius is to call it a tax cut.

The Tax Foundation estimates that under the Obama plan 63 million Americans, or 44% of all tax filers, would have no income tax liability and most of those would get a check from the IRS each year. The Heritage Foundation's Center for Data Analysis estimates that by 2011, under the Obama plan, an additional 10 million filers would pay zero taxes while cashing checks from the IRS.

The total annual expenditures on refundable "tax credits" would rise over the next 10 years by $647 billion to $1.054 trillion, according to the Tax Policy Center. This means that the tax-credit welfare state would soon cost four times actual cash welfare. By redefining such income payments as "tax credits," the Obama campaign also redefines them away as a tax share of GDP. Presto, the federal tax burden looks much smaller than it really is.

The political left defends "refundability" on grounds that these payments help to offset the payroll tax. And that was at least plausible when the only major refundable credit was the earned-income tax credit. Taken together, however, these tax credit payments would exceed payroll levies for most low-income workers.

And then Senator Obama plans to phase out these credits as a person's income rises, thus providing an disincentive for people to work harder and increase their income.

Because Mr. Obama's tax credits are phased out as incomes rise, they impose a huge "marginal" tax rate increase on low-income workers. The marginal tax rate refers to the rate on the next dollar of income earned. As the nearby chart illustrates, the marginal rate for millions of low- and middle-income workers would spike as they earn more income.

Some families with an income of $40,000 could lose up to 40 cents in vanishing credits for every additional dollar earned from working overtime or taking a new job. As public policy, this is contradictory. The tax credits are sold in the name of "making work pay," but in practice they can be a disincentive to working harder, especially if you're a lower-income couple getting raises of $1,000 or $2,000 a year.

Of course, McCain never brings this up. Perhaps he just doesn't understand it or doesn't think that voters will understand it. But it's yet another point on economics that McCain seems incapable of making.

UPDATE: Oops! I just noticed that I'd used a "B" instead of a "C" in the title of this post. Sorry about that.