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John Linder in the House(HR25) & Saxby Chambliss Senate(S25), offer a comprehensive bill to kill all income and SS/Medicare payroll taxes outright, and provide a IRS free replacement in the form of a retail sales tax:
H.R.25,S.25
A bill to promote freedom, fairness, and economic opportunity by repealing the income tax and other taxes, abolishing the Internal Revenue Service, and enacting a national retail sales tax to be administered primarily by the States.Refer for additional information:
The constitution prohibits a direct tax unless it is apportioned among the states by population. It took a constitutional amendment to get the income tax past that little detail.
Based on my understanding of a sales tax or VAT, I think it fails constitutional muster because of that prohibition. Of course the Supreme Court may disagree, ruling that, by definition, a sales tax is apportioned by population or, more likely, that it does not constitute a "direct tax." They have done sillier things in the past.
However, there is precedent that it takes a constitutional amendment to repeal a constitional amendment (remember Prohibition?). A simple law doesn't suffice.
Failing a constitional amendment to repeal the income tax, we would be left with 2 taxes.
And, contrary to what Greenspan says, that would NOT be a good thing.