Desperate for fresh revenues to feed the giant spending appetite of President Obama, Democratic policymakers are talking up ‘tax reform’ as a way to reduce the deficit. Some are considering a European-style value-added tax (VAT), which would have a similar effect as a national sales tax, and be a large new burden on American families.

A VAT would raise hundreds of billions of dollars a year for the government, even at a 10-percent rate. The math is simple: total U.S. consumption in 2008 was $10 trillion. VATs usually tax about half of a nation’s consumption or less, say $5 trillion. That means that a 10% VAT would raise about $500 billion a year in the United States, or about $4,300 from every household. Obviously such a huge tax hit would fundamentally change the American economy and society, and for the worse.

Some fiscal experts think that a VAT would solve the government’s budget problems and reduce the deficit, as the Washington Post noted yesterday. That certainly has not happened in Europe where the average VAT rate is a huge 20 percent, and most nations face large budget deficits just as we do. The hard truth for policymakers to swallow is that the only real cure for our federal fiscal crisis is to cut spending.

Liberals like VATs because of the revenue-raising potential, but some conservatives are drawn to the idea of using VAT revenues to reduce the corporate tax rate. The Post story reflected this in noting “A 21 percent VAT has permitted Ireland to attract investment by lowering the corporate tax rate.” That implies that the Irish government lost money when it cut its corporate rate, but actually the reverse happened in the most dramatic way.

Ireland installed a 10% corporate rate for certain industries in the 1980s, but also steadily cut its regular corporate rate during the 1990s. It switched over to a 12.5% rate for all corporations in 2004. OECD data show that as the Irish corporate tax rate fell, corporate tax revenues went through the roof — from 1.6% of GDP in 1990, to 3.7% in 2000, to 3.8% in 2006.

In sum, a VAT would not solve our deficit problems because Congress would simply boost its spending even higher, as happened in Europe as VAT rates increased over time. Also, a VAT is not needed to cut the corporate income tax rate because a corporate rate cut would be self-financing over the long-term as tax avoidance fell and economic growth increased.