The social interest requires that taxes be both elastic and productive, so that the needs of the government shall be amply provided for. The harmonizing of these needs in the laws of taxation requires a high degree of wisdom, of foresight, and of integrity in the legislator and in the citizen. No hard-and-fast rule for the apportioning of taxes can be laid down. The decision must be made in each generation by the public opinion as to what is most expedient for the general welfare.
§ 13. #Principles of administration.# Whatever forms of taxes are adopted, whether on property or income, whether at proportional or at progressive rates, their justice and expediency depend largely on their administration. Principle and practice in this, as in most affairs, may go far apart. The administration of taxation should be economical, certain, and uniform. Some laws are more easily and economically executed than others. The time of collection should be as convenient as possible for the citizen, and the mode of payment should be the most simple. The utmost certainty is desirable as to the time, method of payment, and amount. Taxation that, in its principle, is variable, shifting, or dependent on personal whim and favoritism, is despotism. But the greatest evils, in practice, result from the failures in assessment. The assessment of taxes has to be intrusted to men with fallible judgment, imperfect knowledge, and selfish interests. The assessor is as near a despot as any agent of popular government to-day. Not infrequently men of proved incapacity in every private business they have attempted are, for partizan or corrupt reasons, selected as assessors, and are given the power of passing judgment on the value of millions of dollars' worth of property. Under the circumstances, evils are to be expected, and they occur. The small owner often is crushed under the unequal assessment while the large owner comes lightly off. Political friends are favored, political foes are made to suffer. Even the most honest and capable of assessors find in the imperfections of the tax laws[6] an insuperable obstacle to even-handed justice.
§ 14. #Shifting and incidence.# The person paying a tax into the public treasury is not always the one whose income is reduced in the long run. This is most clearly seen in the case of taxes paid by middlemen. In most cases the final and regular burden of the tax is distributed over a number of incomes. The passing on of the burden is called the shifting of the tax; the final location of the burden is called the incidence of the tax. The lawmaker cannot tell exactly where the weight will fall. The principles of value give some guidance in the inquiry, but the workings of the principle are difficult to follow.
Consider a situation where certain taxes have been for some time levied. They have become a part of the general adjustment of prices. If paid by any one in business they may be looked upon as a deduction from the gross proceeds or product of the business, prior to cost, or as a part of cost.[7] In either case every one choosing that business does so in the light of this fact. Unless the business promises to yield as good incomes (wages, profits) as other lines, the number engaging in it, and the output, must diminish and thus the price of the product rise, or the cost of the factors fall, or both in some proportion. The tax on any durative agent or on any established business thus becomes incorporated after a time in its price and in the prices of the products, and any purchaser pays a price based on the net income remaining to the owner of the wealth after the tax is paid. Viewed in this way, taxes are seen to be borne to some extent by every one, by those who do not as well as by those who do actually meet the tax-collector face to face. The citizen with no taxable property is affected, far more than he realizes, by extravagance of government and by inequities in taxation, for the effects of most taxes are diffused so that every self-sustaining member of the community has some share in them.
§ 15. #Taxes as costs.# Now if a new tax is levied, or an old tax changed in amount or in its incidence, it becomes a new influence in industry. Some occupations are made more attractive, others less so. Some places are made more, others less, desirable to live in. Property thus fluctuates in value, and investments become more or less remunerative. If the new tax reduces the net income of any productive agent, it reduces likewise its value, which is but the capitalization of its net rental. If taxes are taken off of factories and put upon farm rents, factories rise and farms fall in value in the hands of their owners. The immediate change in value is much greater than the annual tax, for if five dollars is to be taken permanently from the annual rental of the farm, nearly one hundred dollars is taken at once from its selling value when the prevailing yield on investment is 5 per cent. The rate of adjustment varies greatly under different conditions, and the inflow and the outflow of labor and capital are more or less rapid in the various industries.
Taxes that enterprisers are unable to shift to others are reckoned by them as a part of their costs of production whenever the conditions of competition and of substitution make it possible to do so. Every new tax that curtails the supply of any necessary agent must raise the price of the products and cause more or less of the tax to fall upon the consumers. In the Civil War an increase in the tax on whisky increased its selling price, and distillers who owned stocks on which a smaller tax had already been paid reaped profits of millions of dollars. When the tax on tea was increased in England, all dealers that had accumulated a stock before the law went into effect were gainers. Every change in taxation inevitably affects, either favorably or unfavorably, many interests. The chance to anticipate a change in tax laws or to get, from those in power, information of a proposed change, makes speculation possible and political corruption profitable.
The fact that a change in taxation is a disturbing element in price is not to be deemed insignificant merely because "all comes out right in the end." Every change in taxation is an element of uncertainty in business and increases the fortunes of some men at the expense of others. Hence no considerable change should be made without good reasons in its favor. The older taxes have the virtue of stability, but in many cases they have grown out of harmony with the industrial conditions. While, therefore, from time to time there is a real need of a reform in the tax system, it should not be undertaken without recognizing the many and complex interests involved.
[Footnote 1: Meaning here not a certain political party, but a principle of social action.]
[Footnote 2: The total debts of the national governments of the world just before the outbreak of the great war in 1914 were estimated at about $44,000,000,000. (These figures include the debts of the separate states in the federal unions of Australia and the German Empire, and the separate debts of European colonial governments, but not those of the states of the United States, and in no case including the debts of minor divisions, the total figures for which are not to be had.) The new debts created by the war give already more than double the foregoing total.]
[Footnote 3: The special assessment is thus in its nature, in part a private investment. The plan, of special assessments could easily be applied in many more cases than is done at present.]