High taxes, sometimes by diminishing the consumption of the taxed commodities, and sometimes by encouraging smuggling frequently afford a smaller revenue to government than what might be drawn from more moderate taxes.
When the diminution of revenue is the effect of the diminution of consumption, there can be but one remedy, and that is the lowering of the tax. When the diminution of revenue is the effect of the encouragement given to smuggling, it may, perhaps, be remedied in two ways; either by diminishing the temptation to smuggle, or by increasing the difficulty of smuggling. The temptation to smuggle can be diminished only by the lowering of the tax; and the difficulty of smuggling can be increased only by establishing that system of administration which is most proper for preventing it.
The excise laws, it appears, I believe, from experience, obstruct and embarrass the operations of the smuggler much more effectually than those of the customs. By introducing into the customs a system of administration as similar to that of the excise as the nature of the different duties will admit, the difficulty of smuggling might be very much increased. This alteration, it has been supposed by many people, might very easily be brought about.
The importer of commodities liable to any duties of customs, it has been said, might, at his option, be allowed either to carry them to his own private warehouse; or to lodge them in a warehouse, provided either at his own expense or at that of the public, but under the key of the custom-house officer, and never to be opened but in his presence. If the merchant carried them to his own private warehouse, the duties to be immediately paid, and never afterwards to be drawn back; and that warehouse to be at all times subject to the visit and examination of the custom-house officer, in order to ascertain how far the quantity contained in it corresponded with that for which the duty had been paid.