One of the oldest problems connected with taxation is: Who pays the tax? It would seem that the answer is clear-cut, since the government knows on whom it levies a tax. The problem, however, is not who pays the tax immediately, but who pays it in the long run, i.e., whether or not the tax can be “shifted” from the immediate taxpayer to somebody else.

The partial excise tax is a sales tax levied on some, rather than all, commodities. The chief distinction between this and the general sales tax is that the latter does not, in itself, distort productive allocations on the market, since a tax is levied proportionately on the sale of all final products. A partial excise, on the other hand, penalizes certain lines of production. The general sales tax, of course, distorts market allocations insofar as government expenditures from the proceeds differ in structure from private demands in the absence of the tax.

In the dynamic real economy, money income consists of wages, ground rents, interest, and profits, counterbalanced by losses. (Ground rents are also capitalized on the market, so that income from rents is resolvable into interest and profit, minus losses.) The income tax is designed to tax all such net income. We have seen that sales and excise taxes are really taxes on some original-factor incomes.

(1) Taxes on Wages

One of the oldest problems connected with taxation is: Who pays the tax? It would seem that the answer is clear-cut, since the government knows on whom it levies a tax. The problem, however, is not who pays the tax immediately, but who pays it in the long run, i.e., whether or not the tax can be “shifted” from the immediate taxpayer to somebody else.