A privilege tax is a tax

Tax

To tax is to impose a financial charge or other levy upon a taxpayer by a state or the functional equivalent of a state such that failure to pay is punishable by law. Taxes are also imposed by many subnational entities...

 levied in exchange for a privilege

Privilege

A privilege is a special entitlement to immunity granted by the state or another authority to a restricted group, either by birth or on a conditional basis. It can be revoked in certain circumstances. In modern democratic states, a privilege is conditional and granted only after birth...

 or license

License

The verb license or grant licence means to give permission. The noun license or licence refers to that permission as well as to the document recording that permission.A license may be granted by a party to another party as an element of an agreement...

 granted to the taxpayer. The fee for registering a motor vehicle

Motor vehicle

A motor vehicle or road vehicle is a self-propelled wheeled vehicle that does not operate on rails, such as trains or trolleys. The vehicle propulsion is provided by an engine or motor, usually by an internal combustion engine, or an electric motor, or some combination of the two, such as hybrid...

 is one example of a privilege tax.

Many taxes on businesses are characterized as privilege taxes. For example, Arizona

Arizona

Arizona ; is a state located in the southwestern region of the United States. It is also part of the western United States and the mountain west. The capital and largest city is Phoenix...

's transaction privilege tax

Transaction privilege tax

Transaction privilege tax refers to a gross receipts tax levied by the state of Arizona on certain persons for the privilege of conducting business in the state. TPT differs from the “true” sales tax imposed by many other U.S. states as it is imposed upon the seller or lessor rather than the...

 is a gross receipts tax

Gross receipts tax

A gross receipts tax or gross excise tax is a tax on the total gross revenues of a company, regardless of their source. A gross receipts tax is similar to a sales tax, but it is levied on the seller of goods or service consumers...

 on business. In the 1911 case of Flint v. Stone Tracy Co.

Flint v. Stone Tracy Co.

Flint v. Stone Tracy Co. 220 U.S. 107 was a United States Supreme Court case challenging the validity of an income tax on corporations...

, the United States Supreme Court upheld the constitutionality

Constitutionality

Constitutionality is the condition of acting in accordance with an applicable constitution. Acts that are not in accordance with the rules laid down in the constitution are deemed to be ultra vires.-See also:*ultra vires*Company law*Constitutional law...

 of a corporate income tax

Income tax

An income tax is a tax levied on the income of individuals or businesses . Various income tax systems exist, with varying degrees of tax incidence. Income taxation can be progressive, proportional, or regressive. When the tax is levied on the income of companies, it is often called a corporate...

, determining that it was an indirect tax on the privilege of doing business as a corporation

Corporation

A corporation is created under the laws of a state as a separate legal entity that has privileges and liabilities that are distinct from those of its members. There are many different forms of corporations, most of which are used to conduct business. Early corporations were established by charter...

.