A coach may, with good management, last ten or twelve years. It might be taxed, once for all, before it comes out of the hands of the coach-maker. But it is certainly more convenient for the buyer to pay four pounds a-year for the privilege of keeping a coach, than to pay all at once forty or forty-eight pounds additional price to the coach-maker; or a sum equivalent to what the tax is likely to cost him during the time he uses the same coach. A service of plate in the same manner, may last more than a century. It is certainly easier for the consumer to pay five shillings a-year for every hundred ounces of plate, near one per cent. of the value, than to redeem this long annuity at five-and-twenty of thirty years purchase, which would enhance the price at least five-and-twenty or thirty per cent. The different taxes which affect houses, are certainly more conveniently paid by moderate annual payments, than by a heavy tax of equal value upon the first building or sale of the house.

It was the well-known proposal of Sir Matthew Decker, that all commodities, even those of which the consumption is either immediate or speedy, should be taxed in this manner; the dealer advancing nothing, but the consumer paying a certain annual sum for the licence to consume certain goods. The object of his scheme was to promote all the different branches of foreign trade, particularly the carrying trade, by taking away all duties upon importation and exportation, and thereby enabling the merchant to employ his whole capital and credit in the purchase of goods and the freight of ships, no part of either being diverted towards the advancing of taxes. The project, however, of taxing, in this manner, goods of immediate or speedy consumption, seems liable to the four following very important objections. First, the tax would be more unequal, or not so well proportioned to the expense and consumption of the different contributors, as in the way in which it is commonly imposed. The taxes upon ale, wine, and spiritous liquors, which are advanced by the dealers, are finally paid by the different consumers, exactly in proportion to their respective consumption. But if the tax were to be paid by purchasing a licence to drink those liquors, the sober would, in proportion to his consumption, be taxed much more heavily than the drunken consumer. A family which exercised great hospitality, would be taxed much more lightly than one who entertained fewer guests. Secondly, this mode of taxation, by paying for an annual, half-yearly, or quarterly licence to consume certain goods, would diminish very much one of the principal conveniences of taxes upon goods of speedy consumption; the piece-meal payment. In the price of threepence halfpenny, which is at present paid for a pot of porter, the different taxes upon malt, hops, and beer, together with the extraordinary profit which the brewer charges for having advanced them, may perhaps amount to about three halfpence. If a workman can conveniently spare those three halfpence, he buys a pot of porter. If he cannot, he contents himself with a pint; and, as a penny saved is a penny got, he thus gains a farthing by his temperance. He pays the tax piece-meal, as he can afford to pay it, and when he can afford to pay it, and every act of payment is perfectly voluntary, and what he can avoid if he chuses to do so. Thirdly, such taxes would operate less as sumptuary laws. When the licence was once purchased, whether the purchaser drunk much or drunk little, his tax would he the same. Fourthly, if a workman were to pay all at once, by yearly, half-yearly, or quarterly payments, a tax equal to what he at present pays, with little or no inconveniency, upon all the different pots and pints of porter which he drinks in any such period of time, the sum might frequently distress him very much. This mode of taxation, therefore, it seems evident, could never, without the most grievous oppression, produce a revenue nearly equal to what is derived from the present mode without any oppression. In several countries, however, commodities of an immediate or very speedy consumption are taxed in this manner. In Holland, people pay so much a-head for a licence to drink tea. I have already mentioned a tax upon bread, which, so far as it is consumed in farm houses and country villages, is there levied in the same manner.

The duties of excise are imposed chiefly upon goods of home produce, destined for home consumption. They are imposed only upon a few sorts of goods of the most general use. There can never be any doubt, either concerning the goods which are subject to those duties, or concerning the particular duty which each species of goods is subject to. They fall almost altogether upon what I call luxuries, excepting always the four duties above mentioned, upon salt, soap, leather, candles, and perhaps that upon green glass.

The duties of customs are much more ancient than those of excise. They seem to have been called customs, as denoting customary payments, which had been in use for time immemorial. They appear to have been originally considered as taxes upon the profits of merchants. During the barbarous times of feudal anarchy, merchants, like all the other inhabitants of burghs, were considered as little better than emancipated bondmen, whose persons were despised, and whose gains were envied. The great nobility, who had consented that the king should tallage the profits of their own tenants, were not unwilling that he should tallage likewise those of an order of men whom it was much less their interest to protect. In those ignorant times, it was not understood, that the profits of merchants are a subject not taxable directly; or that the final payment of all such taxes must fall, with a considerable overcharge, upon the consumers.

The gains of alien merchants were looked upon more unfavourably than those of English merchants. It was natural, therefore, that those of the former should be taxed more heavily than those of the latter. This distinction between the duties upon aliens and those upon English merchants, which was begun from ignorance, has been continued from the spirit of monopoly, or in order to give our own merchants an advantage, both in the home and in the foreign market.

With this distinction, the ancient duties of customs were imposed equally upon all sorts of goods, necessaries as well as luxuries, goods exported as well as goods imported. Why should the dealers in one sort of goods, it seems to have been thought, be more favoured than those in another? or why should the merchant exporter be more favoured than the merchant importer?

The ancient customs were divided into three branches. The first, and, perhaps, the most ancient of all those duties, was that upon wool and leather. It seems to have been chiefly or altogether an exportation duty. When the woollen manufacture came to be established in England, lest the king should lose any part of his customs upon wool by the exportation of woollen cloths, a like duty was imposed upon them. The other two branches were, first, a duty upon wine, which being imposed at so much a-ton, was called a tonnage; and, secondly, a duty upon all other goods, which being imposed at so much a-pound of their supposed value, was called a poundage. In the forty-seventh year of Edward III., a duty of sixpence in the pound was imposed upon all goods exported and imported, except wools, wool-felts, leather, and wines which were subject to particular duties. In the fourteenth of Richard II., this duty was raised to one shilling in the pound; but, three years afterwards, it was again reduced to sixpence. It was raised to eightpence in the second year of Henry IV.; and, in the fourth of the same prince, to one shilling. From this time to the ninth year of William III., this duty continued at one shilling in the pound. The duties of tonnage and poundage were generally granted to the king by one and the same act of parliament, and were called the subsidy of tonnage and poundage. The subsidy of poundage having continued for so long a time at one shilling in the pound, or at five per cent., a subsidy came, in the language of the customs, to denote a general duty of this kind of five per cent. This subsidy, which is now called the old subsidy, still continues to be levied, according to the book of rates established by the twelfth of Charles II. The method of ascertaining, by a book of rates, the value of goods subject to this duty, is said to be older than the time of James I. The new subsidy, imposed by the ninth and tenth of William III., was an additional five per cent. upon the greater part of goods. The one-third and the two-third subsidy made up between them another five per cent. of which they were proportionable parts. The subsidy of 1747 made a fourth five per cent. upon the greater part of goods; and that of 1759, a fifth upon some particular sorts of goods. Besides those five subsidies, a great variety of other duties have occasionally been imposed upon particular sorts of goods in order sometimes to relieve the exigencies of the state, and sometimes to regulate the trade of the country, according to the principles of the mercantile system.

That system has come gradually more and more into fashion. The old subsidy was imposed indifferently upon exportation, as well as importation. The four subsequent subsidies, as well as the other duties which have since been occasionally imposed upon particular sorts of goods, have, with a few exceptions, been laid altogether upon importation. The greater part of the ancient duties which had been imposed upon the exportation of the goods of home produce and manufacture, have either been lightened or taken away altogether. In most cases, they have been taken away. Bounties have even been given upon the exportation of some of them. Drawbacks, too, sometimes of the whole, and, in most cases, or a part of the duties which are paid upon the importation of foreign goods, have been granted upon their exportation. Only half the duties imposed by the old subsidy upon importation, are drawn back upon exportation; but the whole of those imposed by the latter subsidies and other imports are, upon the greater parts of the goods, drawn back in the same manner. This growing favour of exportation, and discouragement of importation, have suffered only a few exceptions, which chiefly concern the materials of some manufactures. These our merchants and manufacturers are willing should come as cheap as possible to themselves, and as dear as possible to their rivals and competitors in other countries. Foreign materials are, upon this account, sometimes allowed to be imported duty-free; Spanish wool, for example, flax, and raw linen yarn. The exportation of the materials of home produce, and of those which are the particular produce of our colonies, has sometimes been prohibited, and sometimes subjected to higher duties. The exportation of English wool has been prohibited. That of beaver skins, of beaver wool, and of gum-senega, has been subjected to higher duties; Great Britain, by the conquests of Canada and Senegal, having got almost the monopoly of those commodities.

That the mercantile system has not been very favourable to the revenue of the great body of the people, to the annual produce of the land and labour of the country, I have endeavoured to show in the fourth book of this Inquiry. It seems not to have been more favourable to the revenue of the sovereign; so far, at least, as that revenue depends upon the duties of customs.

In consequence of that system, the importation of several sorts of goods has been prohibited altogether. This prohibition has, in some cases, entirely prevented, and in others has very much diminished, the importation of those commodities, by reducing the importers to the necessity of smuggling. It has entirely prevented the importation of foreign wollens; and it has very much diminished that of foreign silks and velvets. In both cases, it has entirely annihilated the revenue of customs which might have been levied upon such importation.