The taxation of all property at a uniform rate is made necessary by the constitutions of about three-fourths of the States of the Union. The taxes on chattels, tools, implements, money, credits, etc., find their condemnation from the Single Taxer's point of view in those ethical considerations which differentiate private from public property. Where there arises a fund known as "land values," growing with the growth of the community and the need of public improvements, it is not only impolitic, it is a violation of the rights of property to tax individual earnings for public expenses.
The value of land is the day-to-day product of the presence and communal activity of the people. It is not a creation of the title-holder and should not be placed in the category of property. If population deserts a town or portions of a town, the value of land will fall; the land may become unsalable. When treated as private property the owner of land receives from day-to-day in ground rent a gift from the community; and justice requires that he should pay taxes to the community proportionate to that gift.
"Land value" or "ground rent" as the older economists termed it, is a tribute which economic law levies upon every occupant of land, however fleeting his stay, as the market price of all the advantages, natural and social, appertaining to that land, including necessarily his just share of the cost of government.
excerpt from The Single Tax Year Book (1917)