The Wealth of Nations by Part 5 Chapter 2 Page 102

his neighbour should be rated somewhat lower.

By what is called the land-tax in England, it was intended that stock should be taxed in the same proportion as land. When the tax upon land was at four shillings in the pound, or at one-fifth of the supposed rent, it was intended that stock should be taxed at one-fifth of the supposed interest. When the present annual land-tax was first imposed, the legal rate of interest was six per cent. Every hundred pounds stock, accordingly, was supposed to be taxed at twenty-four shillings, the fifth part of six pounds. Since the legal rate of interest has been reduced to five per cent every hundred pounds stock is supposed to be taxed at twenty shillings only. The sum to be raised by what is called the land-tax was divided between the country and the principal towns.