"...Once a VAT is in place, Congress could easily increase the VAT any time it wants more taxpayer money to pay for new programs. Continually increasing the size of government would become considerably less painful because small increases in the VAT rate could raise substantial sums of revenue. An increase of just 1 percent would raise more than $80 billion per year by the end of the decade. The ability of the VAT to raise money will almost certainly prove irresistible to Members of Congress. The experience of other industrialized countries bears this out. As Table 1 shows, 29 of the 30 countries in the Organisation for Economic Co-operation and Development have implemented VATs..."
The Value-Added Tax Is Wrong for the United States