When taxes have the effect of interrupting this harmony of expence, of restraining the liberty of squandering, or of saving, or of oppressing one set of men more than another, in all such cases, they are improperly imposed; and instead of being too high, as it is commonly supposed, I think it is a demonstration that they are really lower than they need to be. The classes of men in a modern state, resemble the horses in a team. When every horse draws fairly and equally, the whole force is exerted; but if any one happens to be strained by an overcharge thrown upon him, the force of the team is greatly diminished.
When proportional taxes are carried to their full extent, I then presume every one will be obliged to pay as much as possible; I do not mean that every one will be forced to pay to the extent of his abilities, but I say, that the generality will; and therefore, were cumulative, or personal taxes, to be superadded on those who already pay all they can, they would, by affecting them unequally, deprive many of their physical-necessary, or small profits; and consequently destroy the proper balance of their competition. The setting the lower classes free from cumulative taxes, will only have the effect of putting the growing wealth of the penurious and saving part of the industrious inhabitants out of the reach of taxation. This ought in good policy to be done, as has been shewn in another place. But, farther, we have observed, that taxes can only be increased in proportion to the spirit of dissipation in the people. To force money, therefore, out of the hands of those who do not incline to spend it, is forcing the spirit of the people; and if not tyranny, is at least great severity. Besides, we shall presently shew, how these savings cannot escape being taxed, whenever they begin to produce an income; and allowing that they may be greatly accumulated, and thrown into trade, yet still they must in one way or other appear in alienation, and become subject to the proportional taxes. The only part, therefore, of the savings not affected by taxes, will be confined to that which is locked up. This in a prodigal nation should never be touched. The inconveniencies resulting to the state from so small an inequality of taxation, is too trifling to be attended to, and too difficult to be prevented.
I come next to examine the extent of cumulative taxes.
If we suppose the proportional taxes to be carried to their full extent, there will be little place found for the cumulative, as has been said. The only objects left for them are the savings locked up, and the pure profits upon trade.
But let us suppose proportional taxes out of the question, as they must be when contrary to the spirit of a particular nation; and then inquire into the principles which regulate the imposition of cumulative taxes, in order to discover to what extent they may be carried, and what consequences may follow when they are brought to a height.
This branch has two objects; first, income, which is determinate; secondly, profits from industry, which are and must be very uncertain.
Income, I divide into two sorts; that which proceeds from every branch of solid property, capable of producing it: Land, houses, even cattle, furniture, &c. all may, in some respects, produce an income, more or less permanent according to circumstances. This sort of income is established by lease. The second sort is the interest of money, constituted by the contract of loan.
In imposing cumulative taxes upon income, it is very proper to consider the nature of every species of it, with respect to stability. Landed property is fixed, and can not escape taxation, were the tax to be carried to the extent of the full income, as has been observed. Were the same proportion to be laid on houses, they would soon fall to ruin, because the annual proprietor would not keep them up. Like circumstances must be attended to, in taxing every other article of revenue.
The method of ascertaining the value of this kind of property, is to oblige all leases to be recorded, under a sufficient penalty. This is the method in France, for the sake of the controle, which is exacted upon recording them; and this, no doubt, facilitates the raising of the twentieth penny, which operates upon all such incomes.
The value once ascertained, the whole income is at the mercy of the state, in proportion to the impossibility of avoiding it, by any change on the nature of the fund. It is from this circumstance that I call all such taxes arbitrary impositions. And I call them also cumulative; because the reason given by the statesman for imposing them, is, that it is just every one should pay a general tax, for the support of the state, in proportion to his abilities.