In the U.S., VAT proponents aren't calling for a repeal of the 16th Amendment that allowed the income tax—and, in fact, they want income tax rates to rise. The White House has promised to let the top individual rate increase in January to 39.6% from 35% as the Bush tax cuts expire, while the dividend rate will go to 39.6% from 15% and the capital gains rate to 20% next year and 23.8% in 2013 under the health bill, from 15% today. Even with these higher rates, or because of them, revenues won't come close to paying for the Obama Administration's new spending—which is why it is also eyeing a VAT.
One trait of European VATs is that while their rates often start low, they rarely stay that way. Of the 10 major OECD nations with VATs or national sales taxes, only Canada has lowered its rate. Denmark has gone to 25% from 9%, Germany to 19% from 10%, and Italy to 20% from 12%. The nonpartisan Tax Foundation recently calculated that to balance the U.S. federal budget with a VAT would require a rate of at least 18%.
Proponents also argue that a VAT would result in less federal government borrowing. But that, too, has rarely been true in Europe. From the 1980s through 2005, deficits were by and large higher in Europe than in the U.S. By 2005, debt averaged 50% of GDP in Europe, according to OECD data, compared to under 40% in the U.S.