Last weekend Bruce Bartlett, former economic adviser to Ronald Reagan, outlined the problems with the FairTax, a concept popularized by talk radio host Neal Boortz and, most surprisingly, devised by the Church of Scientology, in the Wall Street Journal:

For those who never heard about it, the FairTax is a national retail sales tax that would replace the entire current federal tax system. It was originally devised by the Church of Scientology in the early 1990s as a way to get rid of the Internal Revenue Service, with which the church was then at war (at the time the IRS refused to recognize it as a legitimate religion). The Scientologists’ idea was that since almost all states have sales taxes, replacing federal taxes with the same sort of tax would allow them to collect the federal government’s revenue and thereby get rid of their hated enemy, the IRS.

Rep. John Linder (R., Ga.) and Sen. Saxby Chambliss (R., Ga.) have introduced legislation (H.R. 25/S. 1025) to implement the FairTax. They assert that a rate of 23% would be sufficient to replace federal individual and corporate income taxes as well as payroll and estate taxes. Mr. Linder’s Web site claims that U.S. gross domestic product will rise 10.5% the first year after enactment, exports will grow by 26%, and real investment spending will increase an astonishing 76%.

In reality, the FairTax rate is not 23%. Messrs. Linder and Chambliss get this figure by calculating the tax as if it were already incorporated into the price of goods and services. (This is known as the tax-inclusive rate.) Calculating it the conventional way that every other (This is called the tax-exclusive rate.)

The distinction is confusing, but think of it this way. If a product costs $1 at retail, the FairTax adds 30%, for a total of $1.30. Since the 30-cent tax is 23% of $1.30, FairTax supporters say the rate is 23% rather than 30%.

This is only the beginning of the deceptions in the FairTax. Under the Linder-Chambliss bill, the federal government would have to pay taxes to itself on all of its purchases of goods and services. Thus if the Defense Department buys a tank that now costs $1 million, the manufacturer would have to add the FairTax and send it to the Treasury Department. The tank would then cost the federal government $300,000 more than it does today, but its tax collection will also be $300,000 higher.

Bartlett concludes the column with this:

Perhaps the biggest deception in the FairTax, however, is its promise to relieve individuals from having to file income tax returns, keep extensive financial records and potentially suffer audits. Judging by the emphasis FairTax supporters place on the idea of making April 15 just another day, this seems to be a major selling point for their proposal.

Yet all but six states now have state income taxes. So unless one lives in one of those states, this promise is an empty one indeed. In short, the FairTax is too good to be true, and voters should not take seriously any candidate who supports it.