Excises are 'taxes laid upon the manufacture, sale, or consumption of commodities within the country, upon licenses to pursue certain occupations, and upon corporate privileges.' Cooley, Const. Lim. 7th ed. 680.

The tax under consideration, as we have construed the statute, may be described as an excise upon the particular privilege of doing business in a corporate capacity, i. e., with the advantages which arise from corporate or quasi corporate organization; or, when applied to insurance companies, for doing the business of such companies. As was said in the Thomas Case, 192 U. S. supra, the requirement to pay such taxes involves the exercise of privileges, and the element of absolute and unavoidable demand is lacking. If business is not done in the manner described in the statute, no tax is payable.〔220 U.S. 107, 152〕