An income tax is a tax imposed by the government on the income earned by individuals and businesses. The responsibility of paying income tax falls on the person or entity that earns the income.
Individuals are required to pay income tax on the income they earn from various sources such as employment, self-employment, investments, and rental income. The amount of income tax an individual must pay is determined by their taxable income, which is their total income minus any deductions and exemptions they are eligible for.
Businesses, including corporations and partnerships, are also required to pay income tax on their profits. The amount of income tax a business must pay is determined by their net income, which is their total revenue minus any expenses they incurred in the process of generating that revenue.
In addition, if an individual or business is earning income from foreign sources, they may also be subject to tax on that income by the foreign country, and may be required to file a tax return in that country as well as in their home country.

It’s important to note that certain types of income, such as gifts and inheritances, may not be subject to income tax. Additionally, some individuals or businesses may be eligible for tax credits or deductions that can reduce the amount of income tax they owe.
In summary, income tax is a tax imposed by the government on the income earned by individuals and businesses. The responsibility of paying income tax falls on the person or entity that earns the income. It’s important to be aware of the laws and regulations regarding income tax and to consult with a tax professional if you have any questions or concerns.