What are the definitions for the words below?

Tax
Tax base
Tax brackets
Sales tax
International revenue services, IRS
Payroll tax
Excise tax
Gas tax
Property tax
Progressive tax
Regressive tax
Tax wage
Externality

Tax: a compulsory contribution to state revenue, levied by the government on workers' income and business profits, or added to the cost of some goods, services, and transactions.

Tax base: the total income, property, assets, consumption, transactions, or other economic activities subject to taxation within a jurisdiction.

Tax brackets: the ranges of taxable income or profits, to which different rates of income tax apply.

Sales tax: a tax on sales or on the receipts from sales.

International revenue services, IRS: the revenue service of the United States federal government, responsible for collecting taxes and enforcing tax laws.

Payroll tax: a tax that is levied on wages and salaries by the government.

Excise tax: a tax on specific goods or services, such as alcohol, tobacco, and gasoline.

Gas tax: a tax on gasoline or other fuel used for transportation.

Property tax: a tax on real estate or personal property.

Progressive tax: a tax in which the tax rate increases as the taxable amount increases.

Regressive tax: a tax in which the tax rate decreases as the taxable amount increases.

Tax wage: the amount of an individual's income that is subject to taxation.

Externality: a cost or benefit that affects a party who did not choose to incur that cost or benefit.