a sales tax would require a new amendment or the tax would have to be apportioned.
What Constitution have you been reading?
Constitution for the United States of America:
A LAW DICTIONARY
by John Bouvier, Revised Sixth Edition, 1856:
DUTIES. In its most enlarged sense, this word is nearly equivalent to taxes, embracing all impositions or charges levied on persons or things;A LAW DICTIONARY
by John Bouvier, Revised Sixth Edition, 1856:
EXCISES. This word is used to signify an inland imposition, paid sometimes upon the consumption of the commodity, and frequently upon the retail sale.
Sales taxes are indirect taxes of the nature of excises or duties:
KNOWLTON v. MOORE, 178 U.S. 41 (1900)
- 'indirect taxes are levied upon the happening of an event or an exchange.'
Tyler v. U.S. 281 U.S. 497, 502 (1930)
- An indirect tax is a tax laid upon the happening of an event,as distinguished from its tangible fruits.
- It is a signal advantage of taxes on articles of consumption, that they contain in their own nature a security against excess. They prescribe their own limit; which cannot be exceeded without defeating the end proposed, that is, an extension of the revenue. ... Impositions of this kind usually fall under the denomination of indirect taxes, and must for a long time constitute the chief part of the revenue raised in this country.
- Those of the direct kind, which principally relate to land and buildings, may admit of a rule of apportionment. Either the value of land, or the number of the people, may serve as a standard. The state of agriculture and the populousness of a country have been considered as nearly connected with each other. And, as a rule, for the purpose intended, numbers, in the view of simplicity and certainty, are entitled to a preference.
The Records of the Federal Convention of 1787
(Farrand's Records)
James Mchenry before the Maryland House of Delegates.
Maryland Novr. 29th 1787--
Appendix A, CXLVIa, page 149, S9."Convention have also provided against any direct or Capitation Tax but according to an equal proportion among the respective States: This was thought a necessary precaution though it was the idea of every one that government would seldom have recourse to direct Taxation, and that the objects of Commerce would be more than Sufficient to answer the common exigencies of State and should further supplies be necessary, the power of Congress would not be exercised while the respective States would raise those supplies in any other manner more suitable to their own inclinations --"
A LAW DICTIONARY
by John Bouvier, Revised Sixth Edition, 1856:
"COMMERCE, trade, contracts.
The exchange of commodities for commodities; considered in a legal point of view, it consists in the various agreements which have for their object to facilitate the exchange of the products of the earth or industry of man, with an intent to realize a profit. Pard. Dr. Coin. n. 1. In a narrower sense, commerce signifies any reciprocal agreements between two persons, by which one delivers to the other a thing, which the latter accepts, and for which he pays a consideration; if the consideration be money, it is called a sale; if any other thing than money, it is called exchange or barter. Domat, Dr. Pub. liv. 1, tit. 7, s. 1, n. "
Three of the four Supreme Court Justices who made the following ruling were delegates to the Constitutional Convention:
Hylton v. United States(1796), 3 U.S. 171
"A general power is given to Congress, to lay and collect taxes, of every kind or nature, without any restraint, except only on exports; but two rules are prescribed for their government, namely, uniformity and apportionment: Three kinds of taxes, to wit, duties, imposts, and excises by the first rule, and capitation, or other direct taxes, by the second rule. " "the present Constitution was particularly intended to affect individuals, and not states, except in particular cases specified: And this is the leading distinction between the articles of Confederation and the present Constitution." "Uniformity is an instant operation on individuals, without the intervention of assessments, or any regard to states," "[T]he DIRECT TAXES contemplated by the Constitution, are only two, to wit, A CAPITATION OR POLL TAX, simply, without regard to property, profession, or any other circumstance; and a tax on LAND."
In you post you disputed whether a new amendment would be needed to authorize a sales tax. I believe that the original poster was referring to the following, this assumes a sales tax is a direct tax, if I buy a house and pay a sales tax I would view that as a direct tax.
Article I
Section 2
..... Representatives and direct taxes shall be apportioned among the several states which may be included within this union, according to their respective numbers, which shall be determined by adding to the whole number of free persons, including those bound to service for a term of years, and excluding Indians not taxed, three fifths of all other Persons. The actual Enumeration shall be made within three years after the first meeting of the Congress of the United States, and within every subsequent term of ten years, in such manner as they shall by law direct. The number of Representatives shall not exceed one for every thirty thousand, but each state shall have at least one Representative; and until such enumeration shall be made, the state of New Hampshire shall be entitled to chuse three, Massachusetts eight, Rhode Island and Providence Plantations one, Connecticut five, New York six, New Jersey four, Pennsylvania eight, Delaware one, Maryland six, Virginia ten, North Carolina five, South Carolina five, and Georgia three.
I haven't given this enough thought to decide if I agree, but it seem reasonable. The 16th amendment circumvented this passage.