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In page Tax:

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All countries have a tax system in place to pay for public, common societal, or agreed national needs and for the functions of government.[citation needed] Some countries levy a flat percentage rate of taxation on personal annual income, but most scale taxes are progressive based on brackets of yearly income amounts. Most countries charge a tax on an individual's income and corporate income. Countries or sub-units often also impose wealth taxes, inheritance taxes, gift taxes, property taxes, sales taxes, use taxes, environmental taxes, payroll taxes, duties, or tariffs. It is also possible to levy a tax on tax, as with a gross receipts tax.