Book V - II: Of the Sources of the General or Public Revenue of the Society - II: Of Taxes - Article III: Taxes Upon the Wages of Labour

The wages of the inferior classes of workmen, I have endeavoured to show in the first book, are everywhere necessarily regulated by two different circumstances; the demand for labour, and the ordinary or average price of provisions. The demand for labour, according as it happens to be either increasing, stationary, or declining; or to require an increasing, stationary, or declining population, regulates the subsistence of the labourer, and determines in what degree it shall be, either liberal, moderate, or scanty. The ordinary or average price of provisions determines the quantity of money which must be paid to the workman in order to enable him, one year with another, to purchase this liberal, moderate, or scanty subsistence. While the demand for labour and the price of provisions, therefore, remain the same, a direct tax upon the wages of labour can have no other effect than to raise them somewhat higher than the tax. Let us suppose, for example, that in a particular place the demand for labour and the price of provisions were such, as to render ten shillings a week the ordinary wages of labour; and that a tax of one-fifth, or four shillings in the pound, was imposed upon wages. If the demand for labour and the price of provisions remained the same, it would still be necessary that the labourer should in that place earn such a subsistence as could be bought only for ten shillings a week, or that after paying the tax he should have ten shillings a week free wages. But in order to leave him such free wages after paying such a tax, the price of labour must in that place soon rise, not to twelve shillings a week only, but to twelve and sixpence; that is, in order to enable him to pay a tax of one-fifth, his wages must necessarily soon rise, not one-fifth part only, but one-fourth. Whatever was the proportion of the tax, the wages of labour must in all cases rise, not only in that proportion, but in a higher proportion. If the tax, for example, was one-tenth, the wages of labour must necessarily soon rise, not one-tenth part only, but one-eighth.

A direct tax upon the wages of labour, therefore, though the labourer might perhaps pay it out of his hand, could not properly be said to be even advanced by him; at least if the demand for labour and the average price of provisions remained the same after the tax as before it. In all such cases, not only the tax, but something more than the tax, would in reality be advanced by the person who immediately employed him. The final payment would in different cases fall upon different persons. The rise which such a tax might occasion in the wages of manufacturing labour would be advanced by the master manufacturer, who would both be entitled and obliged to charge it, with a profit, upon the price of his goods. The final payment of this rise of wages, therefore, together with the additional profit of the master manufacturer, would fall upon the consumer. The rise which such a tax might occasion in the wages of country labour would be advanced by the farmer, who, in order to maintain the same number of labourers as before, would be obliged to employ a greater capital. In order to get back this greater capital, together with the ordinary profits of stock, it would be necessary that he should retain a larger portion, or what comes to the same thing, the price of a larger portion, of the produce of the land, and consequently that he should pay less rent to the landlord. The final payment of this rise of wages, therefore, would in this case fall upon the landlord, together with the additional profit of the farmer who had advanced it. In all cases a direct tax upon the wages of labour must, in the long-run, occasion both a greater reduction in the rent of land, and a greater rise in the price of manufactured goods, than would have followed from the proper assessment of a sum equal to the produce of the tax, partly upon the rent of land, and partly upon consumable commodities.